CICD Regression testing

Regression Testing in CI/CD and its Challenges

The introduction of the (Continuous Integration/Continuous Deployment) CI/CD process has strengthened the release mechanism, helping products to market faster than ever before and allowing application development teams to deliver code changes more frequently and reliably. Regression testing is the process of ensuring that no new mistakes have been introduced in the software after the adjustments have been made by testing the modified sections of the code as well as the parts that may be affected by the modifications. The Software Testing Market size is projected to reach $40 billion in 2020 with a 7% growth rate by 2027. Regression testing accounted for more than 8.5 percent of market share and is expected to rise at an annual pace of over 8% through 2027 as per the reports stated by the Global Market Insights group.

The Importance of Regression Testing

Regression testing is a must for large-sized software development teams following an agile model. When many developers are making multiple commits frequently, regression testing is required to identify any unexpected outcome in overall functionality caused by each commit, CI/CD setup identifies that and notifies the developers as soon as the failure occurs and makes sure the faulty commit doesn’t get shipped into the deployment.

There are different CI/CD tools available, but Jenkins is widely accepted because of being open source, hosts multiple productivity improvement plugins, has active community support, and can set up and scale easily. Source Code Management (SCM) platforms like GitLab and GitHub are also providing a good list of CI/CD features and are highly preferred when the preference is to use a single platform to manage code collaboration along with CI/CD.

Different level of challenges needs to be overcome when CI/CD setup is handling multiple software products with different teams, is using multiple SCMs like GitLab, GitHub, and Perforce, is required to use a cluster of 30+ high configuration computing hosts consisting of various operating systems and handling regression job count as high as 1000+. With the increasing complexity, it becomes important to have an effective notification mechanism, robust monitoring, balanced load distribution of clusters, and scalability and maintenance support along with priory management. In such scenarios, the role of the QA team would be helpful which can focus on CI/CD optimization and plays a significant part in shortening the time to market and achieving the committed release timeline.

Let us see the challenges involved in regression testing and how to overcome them in the blog ahead.

Effective notification mechanism

CI/CD tool like Jenkins provides plugin support to notify a group of people or a specific set of team members who are responsible to cause unexpected failures in the regression testing. Email notifications generated out of plugins are very helpful to bring attention to the underlying situation which needs to be fixed ASAP. But when there are plenty of such email notifications flooding the mailbox, it becomes inefficient to investigate each of them and has a high chance of being missed out. To handle such scenarios, a Failure Summary Report (FSR) highlighting new failures becomes helpful. FSR can further have an executive summary section along with detailed summary sections. Based on the project requirement, one can integrate JIRA, Jenkins links, SCM commit links, and time stamps to make it more useful for developers as the report will have all required references in a single document. FSR can be generated once or multiple times a day based on project requirements.

Optimum use of computing resources

When CI/CD pipelines are set up to use a cluster of multiple hosts with high computing resources, it is expected to have a minimum turnaround time of a regression run cycle with maximum throughput. To achieve this, regression runs need to be distributed correctly across the cluster. Workload management and scheduler tools like IBM LSF, and PBS can be used to run the jobs concurrently based on available computing resources at a given point in time. In Jenkins, one can add multiple slave nodes to distribute jobs across the cluster to minimize the waiting time in the Jenkins queue, but this needs to be done carefully based on available computing power after understanding the resource configuration of slave hosting servers, if not done carefully can result into node crash and loss of data.

Resource monitoring

To support the growing requirement of CI/CD, while scaling one can easily be missed to consider the disk space limitations or cluster resource limitations. If not handled properly, it results in CI/CD node crashes, slow executions, and loss of data. If such an incident happens when a team is approaching an import deliverable, it becomes difficult to meet the committed release timeline. Robust monitoring and notification mechanism should be in place to avoid such scenarios. One can-built monitoring application which continuously monitors the resources of each computing host, network disk space, and local disk space and raises a red flag when the set thresholds are crossed.

Scalability and maintenance

When regression job count grows to many 1000+, it becomes challenging to maintain them. A single change if manually needs to be done in many jobs becomes time-consuming and error-prone. To overcome this challenge, one should opt for a modular and scalable approach while designing test procedure run scripts. Instead of writing steps in CI/CD, one can opt to use SCM to maintain test run scripts. One can also use Jenkins APIs to update the jobs from the backend to save manual efforts.

Priority management

When regression testing of multiple software products is being handled in a single CI/CD setup, priority management becomes important. Pre-merge jobs should get prioritized over post-merge jobs, this can be achieved by running pre-merge jobs on a dedicated host by providing separate Jenkins slave and LSF queue. Post-merge Jenkins jobs of different products should be configured to use easy-to-update placeholders for Jenkins slave tags and LSF queues such that priorities can be easily altered based on which product is approaching the release.

Integration with third-party tools

When multiple SCMs like GitLab/GitHub and issue tracking tools like JIRA are used, tacking commits, MRs, PRs, and issue updates help the team to be in sync. Jenkins integration with GitLab/GitHub helps in reflecting pre-merge run results into SCM. By integrating an issue tracker like JIRA with Jenkins, one can create, and update issues based on run results. With SCM tools and JIRA integration, issues can be auto-updated on a new commit and PR merges.

Not only must regression test plans be updated to reflect new changes in the application code, but they must also be iteratively improved to become more effective, thorough, and efficient. A test plan should be viewed as an ever-evolving document. Regression testing is critical for ensuring high quality, especially as the breadth of the regression develops later in the development process. That’s why prioritization and automation of test cases are critical in Agile initiatives.

At Softnautics, we offer Quality Engineering Services for both software and embedded devices to assist companies in developing high-quality products and solutions that will help them succeed in the marketplace. Embedded and product testing, DevOps and test automation, Machine Leaning Application/Platform testing and compliance testing are all part of our comprehensive QE services. STAF, our in-house test automation framework, helps businesses test end-to-end products with enhanced testing productivity and a faster time to market. We also make it possible for solutions to meet a variety of industry standards, like FuSa ISO 26262, MISRA C, AUTOSAR, and others.

Read our success stories related to Quality Engineering services to know more about our expertise in the domain.

Contact us at business@softnautics.com for any queries related to your solution or for consultancy.

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Developing TPU based AI solutions using TensorFlow Lite

Developing TPU based AI solutions using TensorFlow Lite

AI has become ubiquitous today from personal devices to enterprise applications, you see them everywhere. The advent of IoT clubbed with rising demand for data privacy, low power, low latency, and bandwidth constraints has increasingly pushed for AI models to be running at the edge instead of the cloud. According to Grand View Research, the global edge artificial intelligence chips market was valued at USD 1.8 billion in 2019 and is expected to grow at a CAGR of 21.3 percent from 2020 to 2027. On this onset, Google introduced Edge TPU, also known as Coral TPU, which is its purpose-built ASIC for running AI at edge. It’s designed to give an excellent performance while taking up minimal space and power. When we train an AI model, we end up with AI models that have high storage requirements and GPU processing power. We cannot execute them on devices that have low memory and processing footprints. TensorFlow Lite is useful in this situation. TensorFlow Lite is an open-source deep learning framework that runs on the Edge TPU and allows for on-device inference and AI model execution. Also note that TensorFlow Lite is only for executing inference on the edge, not for training a model. For training an AI model, we must use TensorFlow.

Combining Edge TPU and TensorFlow Lite

When we talk about deploying an AI model on Edge TPU, we just cannot deploy any AI model.
The Edge TPU supports NN (Neural Network) operations and designs to enable high-speed neural network performance with low power consumption. Apart from specific networks, it only supports 8-bit quantized and compiled TensorFlow Lite models for Edge TPU.

For a quick summary, TensorFlow Lite is a lightweight version of TensorFlow specially designed for mobile and embedded devices. It achieves low latency results with a small storage size. There is a TensorFlow Lite converter that allows converting a TensorFlow-based AI model file (. pb) to a TensorFlow Lite file (.tflite). Below is a standard workflow for deploying applications on Edge TPU

Let’s look at some interesting real-world applications that can be built using TensorFlow Lite on edge TPU.

Human Detection and Counting

This solution has so many practical applications, especially in malls, retail, government offices, banks, and enterprises. One may wonder what one can do with detecting and counting humans. Data now has the value of time and money. Let us see how the insights from human detection and counting can be used.

Estimating Footfalls

For the retail industry, this is important as it gives an idea if their stores are doing well. Whether their displays are attracting customers to enter the shops. It also helps them to know if they need to increase or decrease support staff. For other organizations, they help in taking adequate security measures for people.

Crowd Analytics and Queue Management

For govt offices and enterprises, queue management via human detection and counting helps them manage longer queues and save people’s time. Studying queues can attribute to individual and organizations’ performance. Crowd detection can help analyze crowd alerts for emergencies, security incidents, etc., and take appropriate actions. Such solutions give the best results when deployed on edge, as required actions can be taken close to real-time.

Age and Gender-based Targeted Advertisements

This solution mainly has practical applications in the retail and advertisement industry. Imagine you walking towards the advertisement display which was showing a women’s shoe ad and then suddenly the advertisement changes to a male’s shoe ad as it determined you being male. Targeted advertisements help retailers and manufacturers target their products better and create brand awareness that a normal person would never get to see in his busy life.

This cannot be restricted to only advertisements, age and gender detection can also help businesses in taking quick decisions by managing appropriate support staff in retail stores, what age and gender people prefer visiting your store, businesses, etc. All this is more powerful and effective if you are very quick to determine and act. So, even more, a reason to have this solution on Edge TPU.

Face Recognition

The very first face recognition system was built in 1970, and to date this is still being developed, being made more robust and effective. The main advantage of having face recognition on edge is real-time recognition. Another advantage is having face encryption and feature extraction on edge, and just sending encrypted and extracted data to the cloud for matching, thereby protecting PII level privacy of face images (as you don’t save face images on edge and cloud) and complying with stringent privacy laws.

Edge TPU combined with the TensorFlow Lite framework opens several edges AI applications opportunities. As the framework is open-source the Open-Source Software (OSS) community also supports it, making it even more popular for machine learning use cases. The overall platform of TensorFlow Lite enhances the environment for the growth of edge applications for embedded and IoT devices.

At Softnautics, we provide AI engineering and machine learning services and solutions with expertise on edge platforms (TPU, Rpi, FPGA), NN compiler for the edge, cloud platforms accelerators like AWS, Azure, AMD, and tools like TensorFlow, TensorFlow Lite, Docker, GIT, AWS DeepLens, Jetpack SDK, and many more targeted for domains like Automotive, Multimedia, Industrial IoT, Healthcare, Consumer, and Security-Surveillance. Softnautics helps businesses in building high-performance cloud and edge-based ML solutions like object/lane detection, face/gesture recognition, human counting, key-phrase/voice command detection, and more across various platforms.

Read our success stories related to Machine Learning expertise to know more about our services for accelerated AI solutions.

Contact us at business@softnautics.com for any queries related to your solution or for consultancy.

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Machine Learning Based Facial Recognition and Its Benefits

Machine Learning Based Facial Recognition and Its Benefits

Machine Learning based facial recognition is a method of utilizing the face to identify or confirm one’s identity. Persons can be identified in pictures, films, or real time using facial recognition technology. Facial recognition has traditionally functioned in the same way as other biometric methods including voice recognition, eye irises, and fingerprint identification.

The growing use of facial recognition technology in a variety of applications is propelling the industry forward. In case of security, authorities are employing this technology to verify a passenger’s identity, particularly at airports. Face recognition software is also being used by law enforcement agencies to scan faces taken on CCTV and locate the suspect. Smartphones are another area of application where the technology has seen widespread adoption where the software is used to unlock the phone and verify payment information. As in the case of automotives self-driving cars are the focus of using this technology to unlock the car and act as the key to start/ stop the car. According to a report published by markets & markets group, the global facial recognition market is expected to grow at a CAGR of 17.2 percent over the forecast period, from USD 3.8 billion in 2020 to USD 8.5 billion in 2025.

Facial Recognition Technology Working Mechanism

A computer examines visual data and searches for a specified set of indicators, such as a person’s head shape, depth of their eyelids, etc. A database of facial markers is built, and an image of a face that matches the database’s essential threshold of resemblance suggests a possible match. Face recognition technologies, such as machine vision, modelling and reconstruction, and analytics, require the utilization of advanced algorithms in the areas of Machine Learning – Deep Learning and CNN (Convolutional Neural Network), which is growing at an exponential rate.

As facial recognition technology has progressed, a variety of systems for mapping faces and storing facial data have evolved based on Computer Vision, Deep Learning each with various degrees of accuracy and efficiency. In general, there exist 3 methods, which are as follows.

  • Traditional facial recognition
  • Biometric facial recognition
  • 3D facial recognition
Traditional Facial Recognition

There are two methods to it. One is holistic facial recognition, in which an identifier’s complete face is analysed for identifying traits that match the target. Feature-based facial recognition, on the other hand, separates the relevant recognition data from the face before applying it to a template that is compared against prospective matches.

Detection – Facial recognition software detects the identifier’s face in an image
Analysis – Algorithms determine the unique facial biometrics and features, such as the distance between nose and mouth, size of eyelids, forehead, and other characteristics
Identification – The software can now compare the target faceprint to other faceprints in the database to find a match

Overview of Facial Recognition System

Biometric Facial Recognition

Skin and face biometrics are a growing topic in the field of facial recognition that has the potential to improve the accuracy of facial recognition technologies dramatically. A skin texture analysis examines a specific area of a subjects’ skin, using an algorithm to take very precise measurements of wrinkles, textures, and pores.

3D Facial Recognition

It’s a technique that uses the three-dimensional geometry of the human face to create a three-dimensional model of the facial surface. It employs specific aspects of the face to identify the subject, such as the curvature of the eye socket, nose, and chin, where hard tissue and bone are most visible. These regions are all distinct from one another and do not change throughout time. 3D face recognition can achieve more accuracy than its 2D counterpart by analysing the geometry of hard properties on the face. In the 3D facial recognition technology, sensors are employed to capture the shape of the face with more precision. Unlike standard facial recognition systems, 3D facial recognition is unaffected by light, and scans can even be done in complete darkness. Another advantage of 3D facial recognition is that it can recognize a target from many angles rather than just a straight-on appearance.

Applications of Facial Recognition Technology Retail

Face recognition in retail opens an ample number of possibilities for elevating the customer experience. Store owners can collect data about their customers’ visits (such as their reactions to specific products and services) and then conclude how to personalize their offerings. They can offer unique product packages to the clients based on their previous purchasing history and insights. Vending machines in Japan, for example, proposes drinks to customers based on their gender and age using facial recognition technology.

Healthcare

It has enhanced patient experience and reduced efforts for healthcare professionals by improving security and patient identification, as well as better patient monitoring and diagnosis. When a patient walks into the clinic, the facial recognition system scans their face and compares it to a database held by the hospital. Without the need for paperwork or other identification documents, the patient’s identity and health history are verified in real-time.

Security Companies

Nowadays machines that can effectively recognize individuals open a host of options for the security industry, the most important of which is the potential to detect illicit access to areas where non-authorized people are prohibited. Artificial intelligence-powered face recognition software can help spot suspicious behaviour, track down known offenders, and keep people safe in crowded locations.

Fleet Management Services

Facial recognition could be used in fleet management to give alerts to unauthorized personnel attempting to obtain access to vehicles, preventing theft. The fact that distraction is the major cause of accidents, which is due to the usage of electronic gadgets. When a driver’s eyes aren’t on the road, facial recognition technology may be designed to detect it. It may also be trained to detect eyes that indicate an intoxicated or tired driver, improving the safety of driver & fleet vehicles.

Benefits of Facial Recognition Technology

With constantly evolving capabilities, it will be fascinating to see where Machine Learning based Facial Recognition technology will reach over next decade. The amount and quality of image data required to train any facial recognition program are critical to its performance. Many examples are required, and each one necessitates a significant number of pictures to develop a thorough comprehension of the face.

At Softnautics we offer Machine Learning services to assist organizations in the development of futuristic AI solutions like facial recognition systems, Machine Learning/Deep Learning algorithms that compare facial features to several data sets using random and view-based features, utilizing complex mathematical representations and matching methods. We develop powerful Machine Learning models for feature analysis, neural networks, eigenfaces, and automatic face recognition. We provide Machine Learning services and solutions with expertise on edge platforms (TPU, RPi), NN compiler for the edge, Computer Vision, Machine Vision, tools like TensorFlow, TensorFlow Lite, Docker, GIT, AWS deepLens, Jetpack SDK, and many more targeted for domains like Automotive, Multimedia, Industrial IoT, Healthcare, Consumer, and Security-Surveillance.

Read our success stories related to Machine Learning expertise to know more about our services for accelerated AI solutions.

Contact us at business@softnautics.com for any queries related to your solution or for consultancy.

 

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Model Quantization for Edge AI

Model Quantization for Edge AI

Deep learning is witnessing a growing history of success, however, the large/heavy models that must be run on a high-performance computing system are far from optimal. Artificial intelligence is already widely used in business applications. The computational demands of AI inference and training are increasing. As a result, a relatively new class of deep learning approaches known as quantized neural network models has emerged to address this disparity. Memory has been one of the biggest challenges for deep learning architectures. It was an evolution of the gaming industry that led to the rapid development of hardware leading to GPUs that enables 50 layer networks of today. Still, the hunger for memory by newer and powerful networks is now pushing for evolutions of Deep Learning model compression techniques to put a leash on this requirement, as AI is quickly moving towards edge devices to give near to real-time results for captured data. Model quantization is one such rapidly growing technology that has allowed deep learning models to be deployed on edge devices with less power, memory, and computational capacity than a full-fledged computer.

How did AI Migrate from Cloud to Edge?

A computer examines visual data and searches for a specified set of indicators, such as a person’s head shape, depth of their eyelids, etc. A database of facial markers is built, and an image of a face that matches the database’s essential threshold of resemblance suggests a possible match. Face recognition technologies, such as machine vision, modelling and reconstruction, and analytics, require the utilization of advanced algorithms in the areas of Machine Learning – Deep Learning and CNN (Convolutional Neural Network), which is growing at an exponential rate.

Edge AI mostly works in a decentralized fashion. Small clusters of computer devices now work together to drive decision-making rather than going to a large processing center. Edge computing boosts the device’s real-time response significantly. Another advantage of edge AI over cloud AI is the lower cost of operation, bandwidth, and connectivity. Now, this is not easy as it sounds. Running AI models on the edge devices while maintaining the inference time and high throughput is equally challenging. Model Quantization is the key to solving this problem.

The need for Quantization?

Now before going into quantization, let’s see why neural network in general takes so much memory.

Elements of ANN

As shown in the above figure a standard artificial neural network will consist of layers of interconnected neurons, with each having its weight, bias, and activation function. These weights and biases are referred to as the “parameters” of a neural network. This gets stored physically in memory by a neural network. 32-bit floating-point values are a standard representation for them allowing a high level of precision and accuracy for the neural network.

Getting this accuracy makes any neural network take up much memory. Imagine a neural network with millions of parameters and activations, getting stored as a 32-bit value, and the memory it will consume. For example, a 50-layer ResNet architecture will contain roughly 26 million weights and 16 million activations. So, using 32-bit floating-point values for both the weights and activations would make the entire architecture consume around 168 MB of storage. Quantization is the big terminology that includes different techniques to convert the input values from a large set to output values in a smaller set. The deep learning models that we use for inferencing are nothing but the matrix with complex and iterative mathematical operations which mostly include multiplications. Converting those 32-bit floating values to the 8 bits integer will lower the precision of the weights used.

Quantization Storage Format 

Due to this storage format, the footprint of the model in the memory gets reduced and it drastically improves the performance of models. In deep learning, weights, and biases are stored as 32-bit floating-point numbers. When the model is trained, it can be reduced to 8-bit integers which eventually reduces the model size. One can either reduce it to 16-bit floating points (2x size reduction) or 8-bit integers (4x size reduction). This will come with a trade-off in the accuracy of the model’s predictions. However, it has been empirically proven in many situations that a quantized model does not suffer from a significant decay or no decay at all in some scenarios.

Quantized Neural Network model 

How does the quantization process work?

There are 2 ways to do model quantization as explained below:

Post Training Quantization:

As the name suggests, Post Training Quantization is a process of converting a pre-trained model to a quantized model viz. converting the model parameters from 32-bit to 16-bit or 8-bit. It can further be of 2 types. One is Hybrid Quantization, where you just quantize weights and do not touch other parameters of the model. Another is Full Quantization, where you quantize both weights and parameters of the model.

Quantization Aware Training:

As the name suggests, here we quantize the model during the training time. Modifications are done to the network before initial training (using dummy quantize nodes) and it learns the 8-bit weights through training rather than going for conversion later.

Benefits and Drawbacks of Quantization

Quantized neural networks, in addition to improving performance, significantly improve power efficiency due to two factors: lower memory access costs and better computation efficiency. Lower-bit quantized data necessitates less data movement on both sides of the chip, reducing memory bandwidth and conserving a great deal of energy.

As mentioned earlier, it is proven empirically that quantized models don’t suffer from significant decay, still, there are times when quantization greatly reduces models’ accuracy. Hence, with a good application of post quantization or quantization-aware training, one can overcome this drop inaccuracy.

Model quantization is vital when it comes to developing and deploying AI models on edge devices that have low power, memory, and computing. It adds the intelligence to IoT eco-system smoothly.

At Softnautics, we provide AI and Machine Learning services and solutions with expertise on cloud platforms accelerators like Azure, AMD, edge platforms (TPU, RPi), NN compiler for the edge, and tools like Docker, GIT, AWS DeepLens, Jetpack SDK, TensorFlow, TensorFlow Lite, and many more targeted for domains like Multimedia, Industrial IoT, Automotive, Healthcare, Consumer, and Security-Surveillance. We can help businesses to build high-performance cloud-to-edge Machine Learning solutions like face/gesture recognition, human counting, key-phrase/voice command detection, object/lane detection, weapon detection, food classification, and more across various platforms.

Read our success stories related to Machine Learning expertise to know more about our services for accelerated AI solutions.

Contact us at business@softnautics.com for any queries related to your solution or for consultancy.

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automotive-safety-standards

An Overview of Automotive Functional Safety Standards and Compliances

It has been observed that the frequency of traffic accidents has increased significantly over the last two decades, resulting in many fatalities. As per the WHO (World Health Organization) road safety report across the globe, about 1.2 million people lose their life on the roads each year, with another 20 to 50 million suffering quasi-injuries. One of the primary elements that have a direct impact on road user safety is the reliability of automobile devices and systems.

Autonomous vehicles are gaining immense popularity with the advancement in self-driving. Wireless connectivity and other substantial technologies are facilitating ADAS (Advanced Driver Assistant Systems), which consists of applications like adaptive cruise control, automated parking, navigation system, night vision & automatic emergency braking, etc, which play a critical role in the development of fully autonomous vehicles.

Safety Of The Intended Functionality SOTIF (ISO/PAS 21448) was created to solve the new safety challenges that software developers are encountering for autonomous (and semi-autonomous) vehicles. SOTIF (ISO 21448) refers to safety-critical functionality that necessitates sufficient situational awareness. By implementing these procedures, you can accomplish safety in situations where you might otherwise fail. SOTIF (ISO 21448) was designed to be ISO 26262: Part 14 at first. Since assuring safety in the absence of a system breakdown is so difficult, SOTIF (ISO 21448) has become its standard. Because AI and Machine Learning are the vital components of autonomous vehicles. The use of SOTIF (ISO 21448) will be critical in guaranteeing that AI can make appropriate judgments and avoid dangers.

Functional Safety – ISO 26262

FuSa (ISO 26262) automotive functional safety standard establishes a safety life cycle for automotive electronics, requiring designs to pass through an overall safety process to comply with the standard. As within the case of IEC (International Electrotechnical Commission), 61508 measures the reliability of safety functions and uses maximum probability while ISO 26262 is predicated on the violation of safety goals and provides requirements to realize a suitable level of risk. ISO 26262 validates a product’s compliance from conception to decommissioning to develop safety-compliant systems.

ISO 26262 employs the idea of Automotive Safety Integrity Levels (ASILs), a refinement of Safety Integrity Levels, to reach the objective of formulating and executing reliable automotive systems and solutions. ASILs are assigned to components and subsystems that have the potential to cause system failure and malfunction, resulting in hazards. The best allocation of safety levels to the system framework is a complicated issue that must ensure that the highest safety criteria are met while the development cost of the automobile system is kept to a minimum. Let us see what each part of this standard reflects.

Automotive Functional Safety Guidelines

Part 1 – Vocabulary: It relates to the definitions, terms, and abbreviations used in the standard to maintain unity and avoid misunderstanding.

Part 2 – Management of Functional Safety: It offers information on general safety management as well as project-specific information on management activities at various stages of the safety lifecycle.

Part 3 – Concept Phase: Analysis and assessment of risk are being evaluated in the early product development phase.

Part 4 – Product Development at the System Level: It covers system-level development issues comprising system architecture design, item integration & testing.

Part 5 – Product Development at the Hardware Level: It covers basic hardware level design and evaluation of hardware metrics.

Part 6 – Product Development at the Software Level: It comprises software safety, design, integration & testing of embedded software.

Part 7 – Production and Operation: This section explains how to create and maintain a production process for safety-related parts and products that will be installed in vehicles.

Part 8 – Support Processes: This section covers all stages of a product’s safety lifecycle, like proceeding to verification, undertaking tool qualification, documentation etc.

Part 9 – Automotive Safety Integrity Level (ASIL): It covers the requirement for ASIL analysis, defines ASIL decomposition state and analysis of dependent failures.

Part 10 – Guideline on ISO 26262: It covers an overview of ISO 26262 and other guidelines on how to apply the standard.

ISO 26262 classifies ASILs into four categories: A, B, C, and D. The lowest degree of automobile hazard is ASIL A, while the maximum degree is ASIL D. Since the dangers connected with their failure is the highest, systems like airbags, anti-lock brakes, and power steering require an ASIL-D rating, the highest level of rigor applied to safety assurance. Components like rear lights, on the other hand, are merely required to have an ASIL-A rating. ASIL-B would be used for headlights and brake lights, while ASIL-C would be used for cruise control.

Types-of-ASIL-classification

Types of ASIL classification

Automotive Safety Integrity Levels are determined by two factors such as analysis of hazard and assessment of risk. Engineers measure three distinct factors for each electronic component in a vehicle, and those are based on the following factors.

  • Intensity (the severity of the driver’s and passengers’ injuries)
  • Amount of exposure (how frequently the vehicle is subjected to the hazard)
  • Possibility of control (how much the driver can do to avoid an accident.)
MISRA C

The Motor Industry Software Reliability Association (MISRA) publishes standards for the development of safety and security-related electronic systems, embedded control systems, software-intensive applications, and independent software.

MISRA C contains components that protect automobile software from errors and failures. With over 140 rules for MISRA–C and more than 220 rules for MISRA–C++, the suggestions tackle code safety, portability, and reliability issues that affect embedded systems. For MISRA C compliance, developers must follow a set of mandatory rules. The goal of MISRA C is to provide the best performance in terms of software operation for software programs used in automobiles, as these programs can have a significant impact on the vehicle’s overall design safety. Developers utilize MISRA C as one of the tools for developing safe software for automobiles.

AUTOSAR

AUTOSAR (Automotive Open System Architecture) this standard’s goal is to provide a set of specifications that describe fundamental software modules, specify programmatic links, and implement common methods for further development using a standardized format.

AUTOSAR’s sole purpose is to provide a uniform standard across manufacturers, software suppliers, and tool developers while maintaining competition so that the result of the business is not harmed.

While reusability of software components lowers development costs and guarantees stability, it also increases the danger of spreading the same software flaw or vulnerability to other products that use the same code. To solve this significant issue, AUTOSAR advocates safety and security features in software architecture.

The design approach of AUTOSAR includes

  • Product and system definition including software, hardware, and complete system.
  • Allocating AUTOSAR to each ECU (Electronic Control Unit)
  • Configuration of OS, drivers, and application for each ECU (Electronic Control Unit)
  • Comprehensive testing to validate each component, at unit level and system level.

The necessity to assure functional safety at every level of product development and commissioning has grown even more crucial in today’s world when automotive designs have got increasingly complicated with many ECUs, sensors, and actuators. Therefore, today’s automakers are more concerned about adhering to the highest automobile safety requirements, such as the ISO 26262 standard and ASIL Levels.

At Softnautics, we help automotive businesses to manufacture devices/chipsets complying with automotive safety standards and design Machine Learning based intelligent solutions such as automatic parallel parking, traffic sign recognition, object/lane detection, in-vehicle infotainment systems, etc. involving FPGAs, CPUs, and Microcontrollers. Our team of experts has experience working with autonomous driving platforms, middleware, and compliances like adaptive AUTOSAR, FuSa (ISO 26262), and MISRA C. We support our clients in the entire journey of intelligent automotive solution design.

Read our success stories related to Machine Learning expertise to know more about our services for accelerated AI solutions.

Contact us at business@softnautics.com for any queries related to your solution or for consultancy.

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The Rise of Containerized Application for Accelerated AI Solutions

The Rise of Containerized Application for Accelerated AI Solutions

At the end of 2021, the artificial intelligence market was estimated to be a value of $58.3 billion. This figure is bound to increase and is estimated to grow tenfold over the next 5 years and reach $309.6 billion by 2026. Given such popularity of AI technology, companies extensively want to build and deploy solutions with AI applications for their businesses. In today’s technology-driven world AI has become an integral part of our life. As per a report by McKinsey, AI adoption is continuing its steady rise: 56% of all respondents report AI adoption in at least one business function, up from 50% in 2020. This increase in adoption is due to evolving strategies for building and deploying AI applications. Various strategies are evolving to build and deploy AI models. Container applications are one such strategy. MLOps are becoming increasingly stable. If you are unfamiliar with Machine Learning operations, then it is a collection of principles, practices, and technologies that help to increase the efficiency of machine learning workflows. It is based on DevOps, and just as DevOps has streamlined the SDLC from development to deployment, MLOps accomplish the same for machine learning applications. Containerization is one of the most intriguing and emerging technologies for developing and delivering AI applications. A container is a standard unit of software packaging that encapsulates code and all its dependencies in a single package, allowing programs to move from one computing environment to another rapidly and reliably. Docker is at the forefront of application containerization.
What Are Containers?
Containers are logical boxes that contain everything an application requires to execute. The operating system, application code, runtime, system tools, system libraries, binaries, and other components are all included in this software bundle. Optionally, some dependencies might be included or excluded based on the availability of specific hardware. These containers run directly within the host machine kernels. The container will share the host machine’s resources (like CPU, disks, memory, etc.) and eliminate the extra load of a hypervisor. This is the reason why containers are “lightweight “.
Why Are Containers So Popular?
  • First, they are lightweight since the container shares the machine operating system kernels. It doesn’t need an entire operating system in place to run the application. VirtualBox, popularly known as VM’s, require installation of complete OS making them quite bulky.
  • Containers are portable and can easily be transported from one machine to another machine with all the required dependencies within it. They enable developers and operators to improve CPU and memory utilization of physical machines.
  • Among container technology, Docker is the most popular and widely used platform. Not only the Linux-powered Red Hat and Canonical have embraced Docker, but also companies like Microsoft, Amazon, and Oracle are relying on it. Today, almost all IT and cloud companies have adopted docker, and are widely used to provide their solution with all the dependencies.

Virtual Machines vs Containers

Is There Any Difference between Docker and Containers?
  • Docker has widely become a synonym for containers because it is open-source, has a huge community base, and is a quite stable platform. But container technology isn’t new, it has been incorporated into Linux in the form of LXC for more than 10 years, and similar operating-system-level virtualization has also been offered by FreeBSD jails, AIX Workload Partitions, and Solaris Containers.
  • Dockers can make the process easier by merging OS and package needs into a single package, which is one of the differences between containers and dockers.
  • We’re often perplexed as to why docker is employed in the field of data science and artificial intelligence, yet it’s mostly used in DevOps. ML and AI, like DevOps, have inter-OS dependencies. As a result, a single code can run on Ubuntu, Windows, AWS, Azure, Google Cloud, ROS, a variety of edge devices, or anywhere else.
Container Application for AI / ML:
Like any software development, AI applications also face SDLC challenges when assembled and run by various developers in a team or in collaboration with multiple teams. Due to the constant iterative and experimental nature of AI applications, there comes a point where the dependencies might wind up crisscrossing, causing inconveniences for other dependent libraries in the same project.
To Explain:
 

The need for Container Application for AI / ML

The issues are true, and as a result, there is a requirement for acceptable documentation of each step to follow if you’re presenting a project that requires a specific method of execution. Imagine you have multiple python virtual environments for different models of the same projects, and without updated documentation, you may wonder what are these dependencies for? Why do I get conflicts while installing newer libraries or updated models etc.? Developers constantly face this dilemma “It works on my machine” and constantly try resolving it.

Why it’s working on my machine

Using Docker, all of this can be made easier and faster. Containerization can help you save a lot of time updating documents and make the development and deployment of your program go more smoothly in the long term. Even by pulling multiple images which will be platform-agnostic, we can serve multiple AI models using docker containers.

The application written fully on the Linux platform can be run on the Windows platform using docker, which can be installed on a Windows workstation, making code deployment across platforms much easier.

 

Deployment of code using docker container

Benefits of Converting entire AI application development to deployment pipeline into a container:
  • Separate containers for each AI model for different versions of frameworks, OS, and edge devices/ platforms.
  • Having a container for each AI model for customization of deployments. Ex: One container is developer-friendly while another is user-friendly and requires no coding to use.
  • Individual containers for each AI model for different releases or environments in the AI project (development team, QA team, UAT (User Acceptance Testing), etc.)
Container applications truly accelerate the AI application development-deployment pipeline more efficiently and help maintain and manage multiple models for multiple purposes. Read our success stories related to Machine Learning expertise to know more about our services for accelerated AI solutions. Contact us at business@softnautics.com for any queries related to your solution or for consultancy. [elementor-template id=”12005″]

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Role of Machine Vision in Manufacturing

Role of Machine Vision in Manufacturing

Machine Vision has exploded in popularity in recent years, particularly in the manufacturing industry. Companies can profit from the technology’s enhanced flexibility, decreased product faults, and improved overall production quality. The ability of a machine to acquire images, evaluate them, interpret (the situation), and then respond appropriately is known as Machine Vision. Smart cameras, image processing, and software are all part of the system. Vision technology can assist the manufacturing industry on many levels, thanks to significant advancements in imaging techniques, smart sensors, embedded vision, machine and supervised learning, robot interfaces, information transmission protocols, and image processing capabilities. By decreasing human error and ensuring quality checks on all goods traveling through the line, vision systems improve product quality. The Industrial Machine Vision market is valued at $53.38 billion by the end of 2028 and is expected to grow at a rate of 9.90% as per the reports stated by the Data Bridge Research group. Furthermore, an increase in the demand for inspection in the manufacturing units/factories with higher product quality measures, are likely to drive up demand for industrial Machine Vision under AI technologies and propel the market forward.

Applications of Machine Vision in Manufacturing

Predictive Maintenance
Manufacturing enterprises need to use a variety of large machinery to produce vast quantities of goods. To avoid equipment downtime, certain pieces of equipment must be monitored regularly. Examining each piece of equipment in a manufacturing facility by hand is not only time-consuming but also costly and gaffe. The idea was to only fix the equipment when it failed or became problematic. However, utilizing this technique to restore the equipment can have significant consequences for worker productivity, manufacturing quality, and cost. What if, on the other hand, manufacturing organizations could predict the state of their machinery’s operation and take proactive steps to prevent a breakdown from occurring? Let’s examine the situation where some production processes take place at high temperatures and in harsh environments, material deterioration and corrosion are prevalent. As a result, the equipment deforms. If not addressed promptly, this can lead to significant losses and the halting of the manufacturing process. Machine vision systems can monitor the equipment in real-time and predict maintenance based on multiple wireless sensors that provide data of a variety of parameters. If any variation from metrics indicates corrosion/over-heating, the vision systems can notify the appropriate supervisors, who can then take pre-emptive maintenance measures.

Goods Inspection

Manufacturing firms can use machine vision systems to detect faults, fissures, and other blemishes in physical products. Moreover, when the product is being built, these systems may easily check for accurate and reliable component or part dimensions. Images of goods will be captured by machine vision systems. The trained Machine Vision model will compare these photographs with acceptable data limit & will then pass or reject the goods. Any errors or flaws will be communicated via appropriate notification/alert. This is how manufacturers may use machine vision systems to do automatic product inspections and accurate quality control, resulting in increased customer satisfaction.

Scanning Barcodes

Manufacturers can automate the complete scanning process by equipping machine vision systems with enhanced capabilities such as Optical Character Recognition (OCR), Optical Barcode Recognition (OBR), Intelligent Character Recognition (ICR), etc. As in the case of OCR text contained in photographed labels, packaging, or documents can be retrieved and validated against databases. This way, products with inaccurate information can be automatically identified before they leave the factory, limiting the margin for error. This procedure can be used to apply information on drug packaging, beverage bottle labels, and food packaging information such as allergies or expiration dates.

Role of Machine Vision in Manufacturing

 

3D Vision System

A machine vision inspection system is used in a production line to perform tasks that humans find difficult. Here, the system creates a full 3D model of components and connector pins using high-resolution images.

As components pass through the manufacturing plant, the vision system captures images from various angles to generate a 3D model. When these images are combined and fed into AI algorithms, they detect any faulty threading or minor deviations from the design. This technology has a high level of credibility in manufacturing industries for automobiles, oil & gas, electronic circuits, and so on.

Vision-Based Die Cutting

The most widely used technologies for die-cutting in the manufacturing process are rotary and laser die-cutting. Hard tooling and steel blades are used in rotary, while high-speed laser light is used in laser. Although laser die cutting is more accurate, cutting tough materials is difficult, while rotary cutting can cut any material.

To cut any type of design, the manufacturing industry can use machine vision systems to do rotary die cutting that is as precise as laser cutting. After feeding the design pattern to the vision system, the system will direct the die cutting machine, whether laser or rotary, to execute accurate cutting.

As a result, Machine Vision with the help of AI and deep learning algorithms can transform the manufacturing industry’s efficiency and precision. Such models, when combined with controllers and robotics, can monitor everything that happens in the industrial supply chain, from assembly to logistics, with the least amount of human interaction. It eliminates the errors that come with manual procedures and allows manufacturers to focus on higher cognitive activities. As a result, Machine Vision has the potential to transform the way a manufacturing organization/unit does business.

At Softnautics, we help the manufacturing industry to design Vision-based ML solutions such as image classification & tagging, gauge meter reading, object tracking, identification, anomaly detection, predictive maintenance and analysis, and more. Our team of experts has experience in developing vision solutions based on Optical Character Recognition, NLP, Text Analytics, Cognitive Computing, etc.

Read our success stories related to Machine Learning expertise to know more about our services for accelerated AI solutions.

Contact us at business@softnautics.com for any queries related to your solution or for consultancy.

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embedded-video-processor-scaled

Software Infrastructure of an Embedded Video Processor Core for Multimedia Solutions

With new-age technologies like the Internet of Things, Machine Learning, Artificial Intelligence, companies are reimagining and creating intelligent multimedia applications by merging physical reality and digital information in innovative ways. A multimedia solution involves audio/video codec, image/audio/video processing, edge/cloud applications, and in a few cases AR/VR as well. This blog will talk about the software infrastructure involved for an embedded video processor core in any multimedia solution.

The video processor is an RTL-based hardened IP block available for use in leading FPGA boards these days. With this embedded core, users can natively support video conferencing, video streaming, and ML-based image recognition and facial identification applications with low latencies and high resource efficiency. However, there are software level issues pertaining to OS support, H.264/265 processing, driver development, and so forth that could come up before deploying the video processor.

Let us begin with an overview of the video processors and see how such issues can be resolved for semiconductor companies enabling the end-users to reap its product benefits.

The Embedded Video Processor Core

The video processor is a multi-component solution, consisting of the video processing engine itself, a DDR4 block, and a Synchronization block. Together, these components are dedicated to supporting H.264/.265 encoding and decoding at resolutions up to 4k UHD (3840x2160p60) and, for the top speed grades of this FPGA device family, up to 4096x2160p60. Levels and profiles supported include up to L5.1 High Tier for HEVC and L5.2 for AVC. All three are RTL-based embedded IP products that are deployed in the programmable logic fabric of the targeted FPGA device family and are optimized/’hardened’ for maximum resource efficiency and performance.

The video processor engine is capable of simultaneous encoding and decoding of up to 32 video streams. This is achieved by splitting up the 2160p60 bandwidth across all the intended channels, supporting video streams of 480p30 resolution. H.264 decoding is supported for bitstreams up to 960Mb/s at L5.2 2160p60 High 4:2:2 profile (CAVLC) and H.265 decoding of bitstreams up to 533Mb/s L5.1 2160p60 Main 4:2:2 10b Intra profile (CABAC.)

There is also significant versatility built into the video processor engine. Rate control options include CBR, VBR, and Constant QP. Higher resolutions than 2160p60 are supported at lower frame rates. The engine can handle 8b and 10b color depths along with YCbCr Chroma formats of 4:0:0, 4:2:0, and 4:2:2.

The microarchitecture includes separate encoder and decoder sections, each administered by an embedded 32b synthesizable MCU slaved to the Host APU through a single 32b AXI-4 Lite I/F. Each MCU has its L1 instruction and data cache supported by a dedicated 32b AXI-4 master. Data transfers with system memory are across a 4 channel 128b AXI-4 master I/F that is split between the encoder and decoder. There is also an embedded AXI performance monitor which measures bus transactions and latencies directly, eliminating the need for further software overhead other than the locked firmware for each MCU.

The DDR4 block is a combined memory controller and PHY. The controller portion optimizes R/W transactions with SDRAM, while the PHY performs SerDes and clock management tasks. There are additional supporting blocks that provide initialization and calibration with system memory. Five AXI ports and a 64b SODIMM port offer performance up to 2677 MT/s.

The third block synchronizes data transactions between the video processor engine encoder and DMA. It can buffer up to 256 AXI transactions and ensures low latency performance.

The company’s Integrated Development Environment (IDE) is used to determine the number of video processor cores needed for a given application and the configuration of buffers for either encoding or decoding, based on the number of bitstreams, the selected codec, and the desired profile. Through the toolchain, users can select either AVC or HEVC codecs, I/B/P frame encoding, resolution and level, frames per second color format & depth, memory usage, and compression/decompression operations. The IDE also provides estimates for bandwidth requirements and power consumption.

Embedded Software Support

The embedded software development support for any hardware into video processing can be divided into the following general categories:

  1. Video codec validation and functional testing
  2. Linux support, including kernel development, driver development, and application support
  3. Tools & Frameworks development
  4. Reference design development and deployment
  5. Use of and contributions to open-source organizations as needed

Validation of the AVC and HEVC codecs on the video processor is extensive. It must be executed to 3840x2160p60 performance levels for both encoding and decoding in bare metal and Linux-supported environments. Low latency performance is also validated from prototyping to full production.

Linux work focused on multimedia frameworks and levels to customize kernels and drivers. This includes the v4l2 subsystem, the DRM framework, and drivers for the synchronization block to ensure low latency performance.

The codec and Linux projects lent themselves effectively to the development of a wide variety of reference designs on behalf of the client. Edge designs for both encoding and decoding, developments ranging from low latency video conferencing to 32 channel video streaming, Region of Interest-based encoding, and ML face detection, all of this can be accomplished via the use of a carefully considered selection of open-source tools, frameworks, and capabilities. Find below a summary of these offerings:

  1. GStreamer – an open-source multi-OS library of multimedia components that can be assembled pipeline-fashion, following an object-oriented design approach with a plug-in architecture, for multimedia playback, editing, recording, and streaming. It supports the rapid building of multimedia apps and is available under the GNU LGPL license.
    The GStreamer offering also includes a variety of incredibly useful tools, including gst-launch (for building and running GStreamer pipelines) and gsttrace (a basic tracer tool.)
  2. StreamEye – an open-source tool that provides data and graphical displays for in-depth analysis of video streams.
  3. Gstshark – available as an open-source project from Ridgerun, this tool provides benchmarking and tracing capabilities for analysis and debugging of GStreamer multimedia application builds.
  4. FFmpeg and FFprobe – both part of the FFmpeg open-source project, these are hardware-agnostic, multi-OS tools for multimedia software developers. FFmpeg allows users to convert multimedia files between many formats, change sampling rates, and scale video. FFprobe is a basic tool for multimedia stream analysis.
  5. OpenMAX – available thru the Khronos Group, this is a library of API and signal processing functions that allow developers to make a multimedia stack portable across hardware platforms.
  6. Yocto – a Linux Foundation open-source collaboration that creates tools (including SDKs and BSPs) and supporting capabilities to develop Linux custom implementations for embedded and IoT apps. The community and its Linux versioning are hardware agnostic.
  7. Libdrm – an open-source set of low-level libraries used to support DRM. The Direct Rendering Manager is a Linux kernel that manages GPU-based video hardware on behalf of user programs. It administers program requests in an arbitration mode through a command queue and manages hardware subsystem resources, in particular memory. The libdrm libraries include functions for supporting GPUs from Intel, AMD, and Nvidia as well.
    Libdrm includes tools such as modetest, for testing the DRM display driver.
  8. Media-ctl – a widely available open-source tool for configuring the media controller pipeline in the Linux v4l2 layer.
  9. PYUV player – another widely available open-source tool that allows users to play uncompressed video streams.
  10. Audacity – a free multi-OS audio editor.

The above tools/frameworks help design efficient and quality multimedia solutions under video processing, streaming and conferencing.

The Softnautics engineering team has a long history of developing and integrating embedded multimedia and ML software stacks for many global clients. The skillsets of the team members extend to validating designs in hardware with a wide range of system interfaces, including HDMI, SDI, MIPI, PCIe, multi-Gb Ethernet, and more. With hands-on experience in Video Processing for Multi-Core SoC-based transcoder, Streaming Solutions, Optimized DSP processing for Vision Analytics, Smart Camera Applications, Multimedia Verification & validation, Device Drivers for Video/Audio interfaces, etc. Softnautics enable multimedia companies to design and develop connected multimedia solutions.

Read our success stories related to Machine Learning expertise to know more about our services for accelerated AI solutions.

Contact us at business@softnautics.com for any queries related to your solution or for consultancy.

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Computer Vision for Autonomous Vehicle

How Computer Vision propels Autonomous Vehicles from Concept to Reality?

The concept of autonomous vehicles is now becoming a reality with the advancement of Computer Vision technologies. Computer Vision helps in the areas of perception building, localization and mapping, path planning, and making effective use of controllers to actuate the vehicle. The primary aspect is to understand the environment and perceive it by using the camera to identify other vehicles, pedestrians, roads, pathways and with the use of sensors such as Radar, LIDAR, complement those data obtained by the camera.

Histogram of oriented Gradients (HOG) and classifiers for object detection got a lot of attention with the use of machine learning. Classifiers train a model for the identification of shape by examining its different gradients and HOG retains the shapes and directions of each pixel. A typical vision system consists of near and far radars, front, side, and rear cameras with ultrasonic sensors. This system assists in safety-enabled autopilot driving and retains data that can be useful for future purposes.

The Computer Vision market size stands at $9.45 billion and is expected to reach $41.1 billion by 2030 as per the report by Allied market research. Global demand for autonomous vehicles is growing. It is expected that by 2030, nearly 12% to 17% of total vehicle sales will belong to the autonomous vehicle segment. OEMs across the globe are seizing this opportunity and making huge investments in ADAS, Computer Vision, and connected car systems.

Computer Vision with Sensor

How does Computer Vision enable Autonomous Vehicles?
Object Detection and Classification

It helps in identifying both stationary as well as moving objects on the road like vehicles, traffic lights, pedestrians, and more. For the avoidance of collisions, while driving, the vehicles continuously need to identify various objects. Computer Vision uses sensors and cameras to collect entire views and make 3D maps. This makes it easy for object identification, avoiding collision, and makes it safe for passengers.

Information Gathering for Training Algorithms

Computer Vision technology makes use of cameras and sensors to gather large sets of data inducing type of location, traffic and road conditions, number of people, and more. This helps in quick decision-making and assists autonomous vehicles to make use of situational awareness. This data can be further used in training the deep learning model to enhance performance.

Low-Light Mode with Computer Vision

The complexity of driving in a low light mode is much different than driving in daylight mode as images captured in a low light mode are often blurry and unclear which makes driving unsafe. With Computer Vision vehicles can detect low light conditions and make use of LIDAR sensors, HDR sensors, and thermal cameras to create high-quality images and videos. This improves safety for night driving.

Vehicle Tracking and Lane Detection

Cutting lanes can become a daunting task in the case of autonomous vehicles. Computer Vision with assistance from deep learning can use segmentation techniques to identify lanes on-road and continue in the stipulated lane. For tracking and understanding behavioral patterns of a vehicle, Computer Vision uses bounding box algorithms to assess its position.

Assisted Parking

The development in deep learning with convolutional neural networks (CNN) has drastically improved the accuracy level of object detection. With the help of outward-facing cameras, 3D reconstruction, parking slot marking recognition makes it is quite easy for autonomous vehicles to park in congested spaces, thereby eliminating wastage of time and effort. Also, IoT-enabled smart parking systems determine the occupancy of the parking lot and send a notification to the connected vehicles nearby.

Insights to Driver Behaviour

With the use of inward-facing cameras, Computer Vision can monitor driver’s gestures, eye movement, drowsiness, speedometer, phone usage, etc. which have a direct impact on road accidents and passengers’ safety. Monitoring all the parameters and giving timely alerts to drivers, avoids fatal road incidents and augments safety. Especially in the case of logistics & fleet companies, the vision system can identify and provide real-time data for the improvement of driver performance for maximizing their business.

The application of vision solutions into automotive is gaining immense popularity. With the inception of deep learning algorithms such as route planning, object detection, and decision making driven by powerful GPUs along with technologies ranging from SAR/thermal camera hardware, LIDR & HDR sensors, radars, it is becoming simpler to execute the concept of autonomous driving.

At Softnautics, we help automotive businesses to design Computer Vision-based solutions such as automatic parallel parking, traffic sign recognition, object/lane detection, driver attention system, etc. involving FPGAs, CPUs, and Microcontrollers. Our team of experts has experience working with autonomous driving platforms, functions, middleware, and compliances like adaptive AUTOSAR, FuSa (ISO 26262), and MISRA C. We support our clients in the entire journey of intelligent automotive solution design.

Read our success stories related to Machine Learning expertise to know more about our services for accelerated AI solutions.

Contact us at business@softnautics.com for any queries related to your solution or for consultancy.

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System on Modules (SOM) and its end-to-end Verification using Test Automation Framework

SOM is an entire CPU architecture built in a small package, of size like a credit card. It is a board-level circuit that integrates a system function and provides core components of an embedded processing system – processor cores, communication interfaces, and memory blocks on a single module. Designing any product based on the SOM is a much faster process than designing the entire system from the ground up.

There are multiple System on Module manufacturers available in the market worldwide with an equal amount of open-source automated testing frameworks. If you plan to use System-on-Module (SOM) in your product, the first thing required is to identify the test automation framework from the ones available out in the market and check for a suitable module for your requirement.

Image/Video intensive industries face difficulty in designing and developing customized hardware solutions for explicit application, with reduced time and cost. It is linked with quick evolving processors with increasing complexity, requiring product companies to constantly introduce upgraded variants in a short span. System on Module (SOM) ensures reduced development and design risk for any application. SOM is a re-usable module embracing maximum hardware/processor complexity, leaving behind reduced work on the carrier/mainboard, thus accelerating Time-to-Market.

System-on-Module is a small PCB board having CPU, RAM, Flash, Power Supply, and various IOs (GPIOS, UART, USB, I2C, SPI, etc.). In new-age electronics, SOM is becoming a quite common part of the design, specifically in industrial, medical electronics. It reduces the design complexity and the time-to-market which is critical for a product’s success. These System-on-Modules runs an OS and are mainly used in applications where Ethernet, file systems, high-resolution display, USB, Internet, etc. are required and the application needs high computing with less development effort. If you are building a product with less than 20-25K volume, it is viable to use a ready SOM for the product development.

Test Automation frameworks for SOM

testing automation framework is a set of guidelines used for developing test cases. A framework is an amalgamation of tools and practices designed to support quality assurance experts test more efficiently. The guidelines involve coding standards, methodologies to handle test data, object repositories, processes to store test results, or information on accessing external resources. Testing frameworks are an essential part of any successful product release that goes under testing automation. Using a framework for automated testing will enhance a team’s testing efficiency, accuracy, and will reduce time and risks.

There are different types of Automated Testing Frameworks, each having its architecture and merits/demerits. Selecting the right framework is very crucial for your SOM application testing.

Below mentioned are few frameworks used commonly:

  • Linear Automation Framework
  • Modular Based Testing Framework
  • Library Architecture Testing Framework
  • Data-Driven Framework
  • Keyword-Driven Framework
  • Hybrid Testing Framework

From above, the Modular and Hybrid testing frameworks are best suitable for SOM and their development kit verification. The ultimate goal of testing is to ensure that software works as per the specifications and in line with user expectations. The entire process involves quite a few testing types which are preferred or prioritized over others depending on the nature of the application and organization. Let us see some of the basic testing involved in the end-to-end testing process.

Unit testing: Full software stack is made of many small components, so instead of directly testing the full software stack one should cover individual module level testing first. Here unit testing makes sure to have module/method level input/output testing coverage. Unit testing offers a base for complex integrated software and provides fine quality application code, speeding up continuous integration and development process. Often unit tests are executed through test automation by developers.

Smoke testing: Smoke testing is to verify whether the deployed software build is stable or not. To go ahead with further testing depends on smoke test results. It is also referred to as build verification testing which checks whether functionality meets its objective. There is still some development work required if SOM does not clear the smoke.

Sanity testing: The changes or proposed functionality that are working as expected is defined by sanity testing. Suppose we fix some issue in the boot flow of the embedded product, then it should go to the validation team for sanity testing. Once this test is passed it should not impact other basic functionality. Sanity testing is unscripted and specifically targets the area that has undergone a code change.

Regression testing: Every time the program is revised/modified, it should be retested to assure that the modifications didn’t unintentionally “break” some unrelated behavior. This is called regression testing; these tests are usually automated through a test script. Each time the program/design is tested, it should give a smooth result.

Functional testing: Functional testing specifies what the system does. It is also known as black-box testing because the test cases for functional tests are developed without reference to the actual code, i.e., without looking “inside the box.”

Any embedded system has inputs, outputs, and implements some drivers between them. Black-box testing is about which inputs should be acceptable and how they should relate to the outputs. The tester is unaware of the internal structure of the module or source code. Black-box tests include stress testing, boundary value testing, and performance testing.

Over the past years, Softnautics has developed complex software around various processor families from Lattice, Xilinx, Intel, Qualcomm, TI, etc., and has successfully tested the boards for applications like vision processing, AI/ML, multimedia, industrial IoT, and more. Softnautics has market proven process for developing a verification and validation automation suite with zero compromises on feature and/or performance coverage as well as executing test automation with in-house STAF and open-source frameworks. We also provide testing support for product/solution future releases, release management, and product sustenance/maintenance.

Read our success stories related to Machine Learning expertise to know more about our services for accelerated AI solutions.

Contact us at business@softnautics.com for any queries related to your solution or for consultancy.

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Reduced Instruction Set Computing

Getting started with RISC-V and its Architecture

Due to high computing demands, SoCs are becoming more complex. Machine LearningMultimedia, connectivity are critical factors for this. When developing SoC, the critical decision to be made is choosing the proper Instruction Set Architecture (ISA) and the processor hardware architecture. There are many ISA available having different pros and cons. Some of them are proprietary and licensable, while some of them are open. ARM and Intel are two populate players in processor architectures.

There are different variants of architectures provided by vendors. Significant benefits of using licensed architecture are already developed software and ready to use ecosystem. However, design flexibility is minimal with these architectures. Open-source ISA offers greater flexibility, and they are free. Having an open-source also makes room for continuous improvements. People can modify them as per their requirements and contribute back to make them better.

RISC-V (Reduced Instruction Set Computing) is an open standard instruction set architecture based on Reduced Instruction Set Computing (RISC) principles. The RISC-V architecture project was started in 2010 by Prof. Krste Asanović, Prof. David Patterson, graduate students Yunsup Lee and Andrew Waterman at the UC (University of California, Berkeley).

RISC-V is a royalty-free, license-free, and high-quality based ISA sets. The RISC-V standards are maintained by the RISC-V Foundation Company. The RISC-V Foundation is a non-profit organization formed in Aug 2015 to maintain its standards publicly. Currently, more the 230+ companies have been joined the RISC-V Foundation. The RISC-V is freely available under the BSD license. Well, the RISC-V is neither a company nor a CPU implementation.

How RISC-V is different than other processors?

Freely available
Unlike other ISA designs, the RISC-V ISA is provided under free licensing, which means that without paying any fees, we can still use, modify, and distribute the same.

Open Source
As RISC-V ISA is open source, people can use them and improve them. This makes the product more reliable.

Fully Customizable
Though there may be different proprietary processor cores, customization is not possible based on the requirement. The advantage of using the RISC-V ISA (Instruction Set Architecture) is that it enables companies to develop a completely customizable product, specifically to their requirements. They can start with the RISC-V core and add whatever is based on their need. This ultimately saves their time and money, resulting in low cost and low power products which can be used for a long time.

Support for user-level ISA extensions
RISC-V is very modular. There are many standard extensions available for specific purposes which can be added to the base as per requirement. Developers can also create their non-standard extensions. Some of the standard extensions used by RISC-V are:

    • M – Integer Multiplication and Division
    • I – Integer
    • A – Atomics Operation
    • F – Single-Precision Floating Point
    • D – Double-Precision Floating Point
    • Q – Quad-Precision Floating Point
    • G – General Purpose, i.e., IMAFD
    • C – 16-bit Compressed instructions

Designed 32/64/128 bits wide support
RISC-V has different bits width support providing more flexibility for the product development.

 

Riscv processor

Apart from the above benefits, RISC-V has many vital features like multicore support, fully virtualizable for hypervisor development.

The RISC-V supports different software privileged levels
  • User Mode (U-Mode) – Generally runs user processes
  • Supervisor Mode (S-Mode) – Kernel (Including kernel modules and device drivers), Hypervisor
  • Machine Mode (M-Mode) – Bootloader and Firmware

The processor can run in only of the privilege modes at a time. The machine mode is the highest privileged mode and the only required mode. The privilege level defines the capabilities of the running software during its execution. This different level of models makes RISC-V a choice for certain & safety products.

One thing to note is RISC-V is open-source Instruction Set Architecture. Using this architecture, anybody can develop processor cores. Developed core can be free or proprietary depending on the choice of who develops it.

RISC-V can be used for a variety of applications because of its great flexibility, extensions, and possible customization. The RISC-V is suitable for all types of micro-processing systems to the super-computing system. It can fit into small memory devices consuming less memory & power. Similarly, its other variant can provide high computing capabilities. Its privileged modes can provide security features like trust zone & secure monitor calls.

Some of the applications suited for RISC-V are:
  • Machine Learning edge inference
  • Security solutions
  • IoT
RISC-V for Security Solution

Softnautics is using Lattice Semiconductor RISC-V MC CPU soft IP to develop security solutions. The below diagram illustrates it in brief.

Security solution

In Safety-critical products, RISC-V works as the root of trust to ensure the authenticity and integrity of the firmware. It provides below functionalities:

  • Protect platform firmware & critical data : It protects platform firmware and critical data from unauthorized access.
  • Ensure authenticity & integrity of Firmware : On the boot, it checks for firmware signature and verifies that it is not tempered.
  • Detect corrupted platform firmware & critical data : It checks platform firmware & critical data on boot and runtime when requested. If the platform or critical data gets corrupted for any reason, it can detect them and take corrective actions.
  • Restore corrupted platform firmware and/or critical data : If platform firmware or critical data are corrupted, it performs restoration of platform firmware and/or critical data from the backup partition based on the requirement.
  • Runtime monitoring for unintended access : During runtime, it monitors bus traffic accessing secure memories (e.g., SPI traffic) and blocks unintended access.
RISC-V for IoT solution

Gateway is developed with the RISC-V-based MCU to leverage the security features provided by RISC-V.

Riscv IoT solution

The gateway is developed to perform device management, user management, and services management. A cloud agent is developed to handle all the cloud activity from device to cloud via gateway. A device agent is developed to manage all the devices connected to the gateway. A service agent makes sure all the interface and status of the interface and connected device.

Read our success stories related to Machine Learning expertise to know more about our services for accelerated AI solutions.

Contact us at business@softnautics.com for any queries related to your solution or for consultancy.

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Accelerate AI applications using VITIS AI on Xilinx ZynqMP UltraScale+ FPGA

VITIS is a unified software platform for developing SW (BSP, OS, Drivers, Frameworks, and Applications) and HW (RTL, HLS, Ips, etc.) using Vivado and other components for Xilinx FPGA SoC platforms like ZynqMP UltraScale+ and Alveo cards. The key component of VITIS SDK, the VITIS AI runtime (VART), provides a unified interface for the deployment of end ML/AI applications on Edge and Cloud.

Vitis™ AI components:

  • Optimized IP cores
  • Tools
  • Libraries
  • Models
  • Example Reference Designs

Inference in machine learning is computation-intensive and requires high memory bandwidth and high performance compute to meet the low-latency and high-throughput requirements of various end applications.

Vitis AI Workflow

Xilinx Vitis AI provides an innovative workflow to deploy deep learning inference applications on Xilinx Deep Learning Processing Unit (DPU) using a simple process:

Source: Xilinx

  • The Deep Processing Unit (DPU) is a configurable computation engine optimized for convolution neural networks for deep learning inference applications and placed in programmable logic (PL). DPU contains efficient and scalable IP cores that can be customized to meet many different applications’ needs. The DPU defines its own instruction set, and the Vitis AI compiler generates instructions.
  • VITIS AI compiler schedules the instructions in an optimized manner to get the maximum performance possible.
  • Typical workflow to run any AI Application on Xilinx ZynqMP UltraScale+ SoC platform comprises:
  1. Model Quantization
  2. Model Compilation
  3. Model Optimization (Optional)
  4. Build DPU executable
  5. Build software application
  6. Integrate VITIS AI Unified APIs
  7. Compile and link the hybrid DPU application
  8. Deploy the hybrid DPU executable on FPGA
AI Quantizer

AI Quantizer is a compression tool for the quantization process by converting 32-bit floating-point weights and activations to fixed point INT8. It can reduce the computing complexity without losing accurate information for the model. The fixed point model needs less memory, thus providing faster execution and higher power efficiency than floating-point implementation.

AI Quantizer

AI Compiler

AI compiler maps a network model to a highly efficient instruction set and data flow. Input to the compiler is Quantized 8-bit neural network, and output is DPU kernel, the executable which will run on the DPU. Here, the unsupported layers need to be deployed in the CPU OR model can be customized to replace and remove those unsupported operations. It also performs sophisticated optimizations such as layer fusion, instruction scheduling and reuses on-chip memory as much as possible.

Once we get Executable for the DPU, one needs to use Vitis AI unified APIs to Initialize the data structure, initialize the DPU, implement the layers not supported by the DPU on CPU & Add the pre-processing and post-processing on a need basis on PL/PS.

AI Compiler

AI Optimiser

With its world-leading model compression technology, AI Optimizer can reduce model complexity by 5x to 50x with minimal impact on accuracy. This deep compression takes inference performance to the next level.

We can achieve desired sparsity and reduce runtime by 2.5x.

AI Optimizer

AI Profiler

AI Profiler can help profiling inference to find caveats causing a bottleneck in the end-to-end pipeline.

Profiler gives a designer a common timeline for DPU/CPU/Memory. This process doesn’t change any code and can also trace the functions and do profiling.

AI Profiler

AI Runtime

VITIS AI runtime (VART) enables applications to use unified high-level runtime APIs for both edge and cloud deployments, making it seamless and efficient. Some of the key features are:

  • Asynchronous job submission
  • Asynchronous job collection
  • C++ and Python implementations
  • Multi-threading and multi-process execution

Vitis AI also offers DSight, DExplorer, DDump, & DLet, etc., for various task execution.

DSight & DExplorer
DPU IP offers a number of configurations to specific cores to choose as per the network model. DSight tells us the percentage utilization of each DPU core. It also gives the efficiency of the scheduler so that we could tune user threads. One can also see performance numbers like MOPS, Runtime, memory bandwidth for each layer & each DPU node.

Softnautics have a wide range of expertise on various edge and cloud platforms, including vision and image processing on VLIW SIMD vector processor, FPGA, Linux kernel driver development, platform and power management multimedia development. We provide end-to-end ML/AI solutions from dataset preparation to application deployment on edge and cloud and including maintenance.

We chose the Xilinx ZynqMP UltraScale+ platform for high-performance to compute deployments. It provides the best application processing, highly configurable FPGA acceleration capabilities, and  VITIS SDK to accelerate high-performance ML/AI inferencing. One such application we targeted was face-mask detection for Covid-19 screening. The intention was to deploy multi-stream inferencing for Covid-19 screening of people wearing masks and identify non-compliance in real time, as mandated by various governments for Covid-19 precautions guidelines.

We prepared a dataset and selected pre-trained weights to design a model for mask detection and screening. We trained and pruned our custom models via the TensorFlow framework. It was a two-stage deployment of face detection followed by mask detection. The trained model thus obtained was passed through VITIS AI workflow covered in earlier sections. We observed 10x speed in inference time as compared to CPU. Xilinx provides different debugging tools and utilities that are very helpful during initial development and deployments. During our initial deployment stage, we were not getting detections for mask and Non-mask categories. We tried to match PC-based inference output with the output from one of the debug utilities called Dexplorer with debug mode & root-caused the issue to debug this further. Upon running the quantizer, we could tune the output with greater calibration images and iterations and get detections with approximation. 96% accuracy on the video feed. We also tried to identify the bottleneck in the pipeline using AI profiler and then taking corrective actions to remove the bottleneck by various means, like using HLS acceleration to compute bottleneck in post-processing.

Face Detection via AI

Read our success stories related to Machine Learning expertise to know more about our services for accelerated AI solutions.

Contact us at business@softnautics.com for any queries related to your solution or for consultancy.

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Smart OCR solution using Xilinx Ultrascale+ and Vitis AI

The rich, precise high-level semantics embodied in the text helps understand the world around us and build autonomous-capable solutions that can be deployed in a live environment. Therefore, automatic text reading from natural environments, also known as scene text detection/recognition or PhotoOCR, has become an increasingly popular and important research topic in computer vision.

As the written form of human languages evolved, we developed thousands of unique font-families. When we add case (capitals/lower case/uni-case/small caps), skew (italic/roman), proportion (horizontal scale), weight, size-specific (display/text), swash, and serifization (serif/sans in super-families), the number grows in millions, and it makes text identification an exciting discipline for Machine Learning.

Xilinx as a choice for OCR solutions

Today, Xilinx powers 7 out of 10 new developments through its wide variety of powerful platforms and leads the FPGA-based system design trends. Softnautics chose Xilinx for implementing this solution because of the integrated Vitis™ AI stack and strong hardware capabilities.

Xilinx Vitis™ is a free and open-source development platform that packages hardware modules as software-callable functions and is compatible with standard development environments, tools, and open-source libraries. It automatically adapts software and algorithms to Xilinx hardware without the need for VHDL or Verilog expertise.

Selecting the right Xilinx Platform

The comprehensive and rich Xilinx toolset and ecosystem make prototyping a very predictable process expedites the development of the solutions to reduce overall development time by up to 70%.
Softnautics chose Xilinx Ultrascale+ platform as it offers the best of application processing and FPGA acceleration capabilities. It also provides impressive high-level synthesis capability resulting in 5x system-level performance per watt compared to earlier variants. It supports Xilinx Vitis AI that offers a wide range of capabilities to build AI inferencing using acceleration libraries.

Softnautics used Xilinx Vitis AI stack and acceleration utilizing the software to create a hybrid application and implemented LSTM functionality for effective sequence prediction by porting/migrating TensorFlow-lite to ARM. It is running on Processing Side (PS) using the N2Cube Software. Image pre- and post-processing was achieved using HLS through Vivado and Vitis was used for inferencing using CTPN (Connectionist Text Proposal Network). We eventually graduated the solution to real-time scene text detection with video pipeline and improved the model with a robust dataset.

Scene Text Detection

There are many implementations available, and new ones are being researched. Still, a series of grand challenges may still be encountered when detecting and recognizing text in the wild. The difficulties in natural scene mainly stem from three differences when compared to scripts in documents:

  • Diversity and Variability are arising from languages, colors, fonts, sizes, orientations, etc.
  • Vibrant background on which text is written
  • The aspect ratios and layouts of scene text may vary significantly

This type of solution has extensive applicability in various fields requiring real-time text detection on a video stream with higher accuracy and quick recognition. Few of these application areas are:

  • Parking validation — Cities and towns are using mobile OCR to validate if cars are parked according to city regulations automatically. Parking inspectors can use a mobile device with OCR to scan license plates of vehicles and check with an online database to see if they are permitted to park.
  • Mobile document scanning — A variety of mobile applications allow users to take a photo of a document and convert it to text. This OCR task is more challenging than traditional document scanners because photos have unpredictable image angles, lighting conditions, and text quality.
  • Digital asset management – The software helps organize rich media assets such as images, videos, and animations. A key aspect of DAM systems is the search-ability of rich media. By running OCR on uploaded images and video frames, DAM can make rich media searchable and enrich it with meaningful tags.

Softnautics team has been working on Xilinx FPGA based solutions that require design and software framework implementation. Our vast experience with Xilinx and understanding of intricacies ensured we took this solution from conceptualization to proof-of-concept within 4 weeks. Using our end-to-end solution building expertise, you can visualize your ideas with the fastest concept realization service on Xilinx Platforms and achieve greatly reduced time-to-market.

Read our success stories related to Machine Learning expertise to know more about our services for accelerated AI solutions.

Contact us at business@softnautics.com for any queries related to your solution or for consultancy.

Source: Xilinx

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Staying Ahead With The Game Of Artificial Intelligence

Staying Ahead With The Game Of Artificial Intelligence

Artificial Intelligence (AI) is one of the emerging technologies that try to simulate human reasoning in AI systems. Researchers have made significant strides in weak AI systems, while they have only made a marginal mark in robust AI systems.

AI is even contributing to the development of a brain-controlled robotic arm that can help a paralyzed person feel again through complex direct human-brain interfaces. These new AI-enabled systems are revolutionizing from commerce and healthcare to transportation and cybersecurity.

This technology has the potential to impact nearly all aspects of our society, including our economy; still the development and use of the new technologies it brings are not without technical challenges and risks. AI must be developed dependably to ensure reliability, security, and accuracy.

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AI Driven Evolution of Test Automation Frameworks To Be ML Ready

Today test automation is constantly evolving to deliver better quality results with sufficient validation, and the testing lifecycle has become lightning-fast. A major shift has been happening from Manual testing processes towards Agile and DevOps as they are now crucial for every project, so test automation frameworks have become a necessity.

With the software development industry growing at a faster pace, it has become vital for every organization to have a reliable and stable test automation framework. All these test automation frameworks ensure an optimum testing speed along with perks like higher ROI. So, to skyrocketing revenue, organizations have started deploying test automation frameworks for all their hardware and software products.
Faster test cycles, improved test coverage, and higher-quality software do not come without a cost.

Let Us Dive Into What Exactly Is A Test Automation Framework

A Test Automation Framework is a set of protocols that provides a platform to Develop, Execute & Analyze test cases.

Benefits of Using Test Automation Framework

All these test automation frameworks are built by integrating various DevOps opensource/ licensed tools like Appium, Selenium, Jenkins, JUnit, Locust & is one of the essential parts of an automated testing process. Various advantages like:

• Reusability of test scripts
• Execution on multiple devices
• Minimal manual intervention
• Capture debug logs

Top 4 Features of Test Automation Framework

Test automation framework Benefits

So, What’s Next In The Test Automation Framework?

Testing is slowly conversing to higher automation to ensure the best accuracy and precision in the drive towards digital transformation. Soon, we can expect our two friends — Artificial Intelligence and Machine Learning to take care of most of the work today’s software engineers do. The shift is moving away from the functional testing and the testing, Artificial Intelligence (AI) & Machine Learning much change with it. This signifies that instead of manual testing and human interference, we are moving towards machine control solutions. Adoption in IoT Testing has significantly increased due to security flaws and risks in IoT apps and devices, which ensures the need for IoT Testing. A spike in the adoption of automated testing with the maturation of Agile methodologies and the adoption of DevOps is undoubtedly the future of the software and hardware testing industry. Today organizations have also realized that as complexity increases, automation is the only way to keep pace with the changing trends.

Know how Softnautics can automate your test cases using automation framework.

Read our success stories related to Machine Learning expertise to know more about our services for accelerated AI solutions.

Contact us at business@softnautics.com for any queries related to your solution or for consultancy.

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Cloud services

How To Mint Cloud Migration For Organisational Gains

Are you looking for reasons for moving toward the cloud or the cloud services, but don’t really know about the benefits?

The move to the cloud can be daunting, difficult, and trying. But, it is also necessary and inevitable considering the demo seen during the unfortunate #COVID crisis forcing people to work from home. Migration to the cloud ensures your IT administrator has one less failure to worry about.

Essentially, a cloud service can refer to any asset provided over the internet. The migration to the cloud has introduced the modern-day consumer with an unprecedented amount of convenience and comfort through smarter living. It has made the customers more demanding, and technology innovators are constantly striving to meet these ever-increasing needs. The sweeping changes that migration to the cloud can bring to how companies oversee the physical assets, how consumers attend to their health and wellness, and how urban areas operate have furthermore inspired visions of a very different future, as well as a good deal of hype.

According to IDC, worldwide cloud services spending could grow from $229 billion in 2019 to nearly $500 billion in 2023. What cloud computing brings to companies is flexibility and functionality. Since the cloud is a vast network – it is simpler to store as huge a volume of data as you want or need to. In any case, it’s important to note that cloud computing in the business industry is totally different from using the cloud for home-based offices or personal needs. Businesses need to decide whether they should go with Platform-as-a-Service (or PaaS), Software-as-a-Service (SaaS), or with Infrastructure-as-a-Service (IaaS) for cloud implementation. Cloud computing allows business owners to concentrate on what is important, that is their business.

Another reason for moving towards cloud is digital transformation. Nowadays as the invasion of the digital transformation is taking the state of a leviathan, there are powerful tools to assist organizations to determine and regulate customer activities on their websites. Digital transformation is the need of the hour. Not only does it help businesses to offer enhanced customer experiences, but it also enables them to generate more revenue.

According to IDC, global spending on digital transformation will be $2 trillion by 2022. The fate of the digital economy depends on individuals and organizations trusting computing technology. The digital transformation generally takes place in the three primary aspects of business, which incorporate the customer experience, the business model and the operational process, the focus must always remain on the enhancement of the consumer experience. This leads businesses to the biggest challenge which involves how one can utilize all these three elements of a business to offer a fulfilling and all-round holistic experience to their consumers.

Digital transformation is sweeping through every industry, prompting organizations to install audio, video, and vibration sensors across their operations. However, given that 30% of IoT projects fail in the proof-of-concept stage, it’s entirely reasonable to be cautious when it comes to investing money in large-scale IoT deployments.

Transitioning to the cloud is one of the most important and fundamental steps in any organization’s digital transformation. A multi-cloud approach, when implemented correctly, should be a best practice to keep data secure. The benefits are numerous, and with the future primed for the evolution and adaptation of emerging tech, multi-cloud provides an essential foundation for tomorrow’s workloads and workforce needs.
Know about the Softnautics services to overcome your challenges!

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Quality Assurance for Embedded Systems

In this rapidly evolving technology, embedded systems have become the backbone of the modern world. From the subtle intelligence of smart home devices to the critical operations within healthcare and automotive industries, embedded systems are the quiet architects of our technological landscape. The seamless and error-free operation of these intricate systems is ensured by the meticulous application of Quality Assurance (QA). QA emerges as a paramount force in the development of embedded systems. In this article, we dissect the significance of QA in embedded systems, where precision and reliability are not just desired but mandatory. Join us as we navigate through various aspects of QA, exploring how QA shapes the robust functionality of embedded systems.

Embedded systems are specialized computing systems that are designed to perform dedicated functions or tasks within a larger system. Unlike general-purpose computers, embedded systems are tightly integrated into the devices they operate, making them essential components in various industries. They are the brains behind smart home devices, medical equipment, automotive systems, industrial machinery, and more. These systems ensure seamless and efficient operation without drawing much attention to themselves.

Significance of Quality Assurance in Embedded Systems

In embedded systems, QA involves a systematic process of ensuring that the developed systems meet specified requirements and operate flawlessly in their intended environments. The importance of QA for embedded systems can be emphasized by the following factors:

Reliability: Embedded systems often perform critical functions. Whether it’s a pacemaker regulating a patient’s heartbeat or the control system of an autonomous vehicle, reliability is non-negotiable. QA ensures that these systems operate with a high level of dependability and consistency. Some of the key test types in reliability testing

  • Feature Testing
  • Regression Testing
  • Load Testing

Safety: Many embedded systems are deployed in environments where safety is paramount, such as in medical devices or automotive control systems. QA processes are designed to identify and reduce potential risks and hazards, ensuring that these systems comply with the safety standards. To achieve a safe state in an embedded system, the Hazard Analysis and Risk Assessment (HARA) method is applied to embedded systems when it comes to automotive and the healthcare sector, an additional layer of consideration is crucial in medical devices and systems, compliance with data security and patient privacy standards is of utmost importance. The Health Insurance Portability and Accountability Act (HIPAA) method is applied to ensure that healthcare information is handled securely and confidentially

Compliance: Embedded systems must stick to industry specific regulations and standards. QA processes help verify that the developed systems comply with these regulations, whether they relate to healthcare, automotive safety, smart consumer electronics, or any other sector. Embedded systems undergo various compliance tests depending on the product nature, including regulatory, industry standards, and security compliance tests

Performance: The performance of embedded systems is critical, especially when dealing with real-time applications. QA includes performance testing to ensure that these systems meet response time requirements and can handle the expected workload. Following are the types of performance testing

  • Load testing
  • Stress testing
  • Scalability testing
  • Throughput testing

Evolution of QA in Embedded Systems

The technological landscape is dynamic, and embedded systems continue to evolve rapidly. Consequently, QA practices must also adapt to keep pace with these changes. Some key aspects of the evolution of QA in embedded systems include

Increased complexity: As embedded systems become more complex, with advanced features and connectivity options, QA processes need to address the growing complexity. This involves comprehensive testing methodologies and the incorporation of innovative testing tools

Agile development practices: The adoption of agile methodologies in software development has influenced QA practices in embedded systems. This flexibility allows for more iterative and collaborative development, enabling faster adaptation to change requirements and reducing time-to-market

Security concerns: With the increasing connectivity of embedded systems, security has become a paramount concern. QA processes now include rigorous security testing to identify and address vulnerabilities, protecting embedded systems from potential cyber threats

Integration testing: Given the interconnected nature of modern embedded systems, integration testing has gained significance. QA teams focus on testing how different components and subsystems interact to ensure seamless operation

Automated Testing in Embedded Systems
As embedded systems fall in complexity, traditional testing methods fall short of providing the speed and accuracy required for efficient development. This is where test automation steps in. Automated testing in embedded systems streamlines the verification process, significantly reducing time-to-market and enhancing overall efficiency. Also, incorporating machine learning algorithms to enhance and modify testing procedures over time, machine learning testing is an important aspect of automated testing. This helps to identify possible problems before they become more serious and increases efficiency

Testing approaches for Embedded systems

Testing Approaches for Embedded Systems
The foundation of quality control for embedded systems is device and embedded testing. This entails an in-depth assessment of embedded devices to make sure they meet safety and compliance requirements and operate as intended. Embedded systems demand various testing approaches to cover diverse functionalities and applications.

  • Functional testing is used to make sure embedded systems accurately carry out their assigned tasks. With this method, every function is carefully inspected to ensure that it complies with the requirements of the system
  • Performance testing examines the behavior of an embedded system in different scenarios. This is essential for applications like industrial machinery or automotive control systems where responsiveness in real-time is critical
  • Safety and compliance testing is essential, especially in industries with strict regulations. Compliance with standards like ISO 26262 in automotive or MISRA-C in software development is non-negotiable to guarantee safety and reliability

Leveraging machine learning in testing (ML testing)

Machine Learning (ML) is becoming more and more popular as a means of optimizing and automating testing procedures for embedded systems. AIML algorithms are used in test automation. Test time and effort are greatly reduced with ML-driven test automation. It can create and run test cases, find trends in test data, and even forecast possible problems by using past data. ML algorithms are capable of identifying anomalies and departures from typical system behavior. This is particularly helpful in locating minor problems that conventional testing might ignore.

As technology advances, so does the landscape of embedded systems. The future of Quality Assurance in embedded systems holds exciting prospects, with a continued emphasis on automation, machine learning, and agile testing methodologies.

In conclusion, the role of QA in the development of embedded systems is indispensable. It not only guarantees the reliability and safety of these systems but also evolves alongside technological advancements to address new challenges and opportunities in the ever-changing landscape of embedded technology.

Softnautics, a MosChip Company provides Quality Engineering Services for embedded software, device, product, and end-to-end solution testing. This helps businesses create high-quality embedded solutions that enable them to compete successfully in the market. Our comprehensive QE services include embedded and product testing, machine learning applications and platforms testing, dataset and feature validation, model validation, performance benchmarking, DevOps, test automation, and compliance testing.

Read our success stories related to Quality Engineering services to know more about our expertise in this domain.

Contact us at business@softnautics.com for any queries related to your solution design and testing or for consultancy.
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Optimizing Embedded software for real-time multimedia processing

The demands of multimedia processing are diverse and ever-increasing. Modern consumers expect nothing less than immediate and high-quality audio and video experiences. Everyone wants their smart speakers to recognize their voice commands swiftly, their online meetings to be smooth, and their entertainment systems to deliver clear visuals and audio. Multimedia applications are now tasked with handling a variety of data types simultaneously, such as audio, video, and text, and ensuring that these data types interact seamlessly in real-time. This necessitates not only efficient algorithms but also an underlying embedded software infrastructure capable of rapid processing and resource optimization. The global embedded system market is expected to reach around USD 173.4 billion by 2032, with a 6.8% CAGR. Embedded systems, blending hardware and software, perform specific functions and find applications in various industries. The growth is fuelled by the rising demand for optimized embedded software solutions.

The demands on these systems are substantial, and they must perform without glitches. Media and entertainment consumers anticipate uninterrupted streaming of high-definition content, while the automotive sector relies on multimedia systems for navigation, infotainment, and in-cabin experiences. Gaming, consumer electronics, security, and surveillance are other domains where multimedia applications play important roles.

Understanding embedded software optimization

Embedded software optimization is the art of fine-tuning software to ensure that it operates at its peak efficiency, responding promptly to the user’s commands. In multimedia, this optimization is about enhancing the performance of software that drives audio solutions, video solutions, multimedia systems, infotainment, and more. Embedded software acts as the bridge between the user’s commands and the hardware that carries them out. It must manage memory, allocate resources wisely, and execute complex algorithms without delay. At its core, embedded software optimization is about making sure every bit of code is utilized optimally.

Performance enhancement techniques

To optimize embedded software for real-time multimedia processing, several performance enhancement techniques come into play. These techniques ensure the software operates smoothly and at the highest possible performance.

  • Code optimization: Code optimization involves the meticulous refinement of software code to be more efficient. It involves using algorithms that minimize processing time, reduce resource consumption, and eliminate duplication.
  • Parallel processing: Parallel processing is an invaluable technique that allows multiple tasks to be executed simultaneously. This significantly enhances the system’s ability to handle complex operations in real-time. For example, in a multimedia player, parallel processing can be used to simultaneously decode audio and video streams, ensuring that both are in sync for a seamless playback experience.
  • Hardware acceleration: Hardware acceleration is a game-changer in multimedia processing. It involves assigning specific tasks, such as video encoding and decoding, to dedicated hardware components that are designed for specific functions. Hardware acceleration can dramatically enhance performance, particularly in tasks that involve intensive computation, such as video rendering and AI-based image recognition.

Memory management

Memory management is a critical aspect of optimizing embedded software for multimedia processing. Multimedia systems require quick access to data, and memory management ensures that data is stored and retrieved efficiently. Effective memory management can make the difference between a smooth, uninterrupted multimedia experience and a system prone to lags and buffering.

Efficient memory management involves several key strategies.

  • Caching: Frequently used data is cached in memory for rapid access. This minimizes the need to fetch data from slower storage devices, reducing latency.
  • Memory leak prevention: Memory leaks, where portions of memory are allocated but never released, can gradually consume system resources. Embedded software must be precisely designed to prevent memory leaks.
  • Memory pools: Memory pools are like pre-booked sectors of memory space. Instead of dynamically allocating and deallocating memory as needed, memory pools reserve sectors of memory in advance. This proactive approach helps to minimize memory fragmentation and reduces the overhead associated with constantly managing memory on the fly.

Optimized embedded software for real-time multimedia processing

Real-time communication

Real-time communication is the essence of multimedia applications. Embedded software must facilitate immediate interactions between users and the system, ensuring that commands are executed without noticeable delay. This real-time capability is fundamental to providing an immersive multimedia experience.

In multimedia, real-time communication encompasses various functionalities. For example, video conferencing ensures that audio and video streams remain synchronized, preventing any awkward lags in communication. In gaming, it enables real-time rendering of complex 3D environments and instantaneous response to user input. The seamless integration of real-time communication within multimedia applications not only ensures immediate responsiveness but also underpins the foundation for an enriched and immersive user experience across diverse interactive platforms.

The future of embedded software in multimedia

The future of embedded software in multimedia systems promises even more advanced features. Embedded AI solutions are becoming increasingly integral to multimedia, enabling capabilities like voice recognition, content recommendation, and automated video analysis. As embedded software development in this domain continues to advance, it will need to meet the demands of emerging trends and evolving consumer expectations.

In conclusion, optimizing embedded software for real-time multimedia processing is a subtle and intricate challenge. It necessitates a deep comprehension of the demands of multimedia processing, unwavering dedication to software optimization, and the strategic deployment of performance enhancement techniques. This ensures that multimedia systems can consistently deliver seamless, immediate, and high-quality audio and video experiences. The embedded software remains the driving force behind the multimedia solutions that have seamlessly integrated into our daily lives.

At Softnautics, a MosChip company, we excel in optimizing embedded software for real-time multimedia processing. Our team of experts specializes in fine-tuning embedded systems & software to ensure peak efficiency, allowing seamless and instantaneous processing of audio, video, and diverse media types. With a focus on enhancing performance in multimedia applications, our services span across designing audio/video solutions, multimedia systems & devices, media infotainment systems, and more. Operating on various architectures and platforms, including multi-core ARM, DSP, GPUs, and FPGAs, our embedded software optimization stands as a crucial element in meeting the evolving demands of the multimedia industry.

Read our success stories to know more about our multimedia engineering services.

Contact us at business@softnautics.com for any queries related to your solution design or for consultancy.

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Inside HDR10: A technical exploration of High Dynamic Range

High Dynamic Range (HDR) technology has taken the world of visual entertainment, especially streaming media solutions, by storm. It’s the secret sauce that makes images and videos look incredibly lifelike and captivating. From the vibrant colors in your favourite movies to the dazzling graphics in video games, HDR has revolutionized how we perceive visuals on screens. In this blog, we’ll take you on a technical journey into the heart of HDR, focusing on one of its most popular formats – HDR10. “Breaking down all the complex technical details into simple terms, this blog aims to help readers understand how HDR10 seamlessly integrates into streaming media solutions, working its magic.

What is High Dynamic Range 10 (HDR10)?

HDR 10 is the most popular and widely used HDR standard for consuming digital content. Every TV that is HDR enabled is compatible with HDR10. In the context of video, it primarily provides a significantly enhanced visual experience compared to standard dynamic range (SDR).

Standard Dynamic Range:

People have experienced visuals through SDR for a long time, which has a limited dynamic range. This limitation means SDR cannot capture the full range of brightness and contrast perceivable by the human eye. One can consider it the ‘old way’ of watching movies and TV shows. However, the discovery of HDR has changed streaming media by offering a much wider dynamic range, resulting in visuals that were more vivid and lifelike.

Understanding the basic visual concepts

Luminance and brightness: Luminance plays a pivotal role in our perception of contrast and detail in image processing. Higher luminance levels result in objects appearing brighter and contribute to the creation of striking highlights and deep shadows in HDR content. Luminance, measured in units called “nits,” is a scientific measurement of brightness. In contrast, brightness, in the context of how we perceive it, is a subjective experience influenced by individual factors and environmental conditions. It is how we interpret the intensity of light emitted or reflected by an object. It can vary from person to person.

Luminance comparison between SDR and HDR

Color-depth (bit-depth): Color-depth, often referred to as bit-depth, is a fundamental concept in digital imaging and video solutions. It determines the richness and accuracy of colors in digital content. This metric is quantified in bits per channel, effectively dictating the number of distinct colors that can be accurately represented for each channel. Common bit depths include 8-bit, 10-bit, and 12-bit per channel. Higher bit depths allow for smoother color transitions and reduce color banding, making them crucial in applications like photography, video editing, and other video solutions. However, it’s important to note that higher color depths lead to larger file sizes due to the storage of more color information.

Possible colors with SDR and HDR Bit-depth

Color-space: Color-space is a pivotal concept in image processing, display technology, and video solutions. It defines a specific set of colors that can be accurately represented and manipulated within a digital system. This ensures consistency and accuracy in how colors are displayed, recorded, and interpreted across different devices and platforms. Technically, it describes how an array of pixel values should be displayed on a screen, including information about pixel value storage within a file, the range, and the meaning of those values. Color spaces are essential for faithfully reproducing a wide range of colors, from the deep blues to the rich red colors, resulting in visuals that are more vibrant and truer to life. A color space is akin to a palette of colors available for use and is defined by a range of color primaries represented as points within a three-dimensional color space diagram. These color primaries determine the spectrum of colors that can be created within that color space. A broader color gamut includes a wider range of colors, while a narrower one offers a more limited selection. Various color spaces are standardized to ensure compatibility across different devices and platforms.

CIE Chromaticity Diagram representing Rec.709 vs Rev2020

Dynamic range: Dynamic range relates to the contrast between the highest and lowest values that a specific quantity can include. This idea is commonly used in the domains of signals, which include sound and light. In the context of images, dynamic range determines how the brightest and darkest elements appear within a picture and the extent to which a camera or film can handle varying levels of light. Furthermore, it greatly affects how different aspects appear in a developed photograph, impacting the interplay between brightness and darkness. Imagine dynamic range as a scale, stretching from the soft glow of a candlelit room to the brilliance of a sunlit day. In simpler terms, dynamic range allows us to notice fine details in shadows and the brilliance of well-lit scenes in both videos and images.

Dynamic Range supported by SDR and HDR Displays

Difference between HDR and SDR

Aspect HDR SDR
Luminance Offers a broader luminance range, resulting in brighter highlights and deeper black for more lifelike visuals. Limited luminance range can lead to less dazzling bright areas and shallower dark scenes.
Color depth Provides a 10-bit color depth per channel, allowing finer color gradations and smoother transitions between colors. Offers a lower color depth, resulting in fewer color gradations and potential color banding.
Color space Incorporates a wider color gamut like BT.2020, reproducing more vivid and lifelike colors. Typically uses the narrower BT.709 color space, offering a more limited color range.
Transfer function Utilizes the perceptual quantizer (PQ) as a transfer function, accurately representing luminance levels from 10,000 cd/m^2 down to 0.0001 nits. Relies on a gamma curve for transfer function, which may not accurately represent extreme luminance levels.

Metadata in HDR10
HDR10 utilizes the PQ EOTF, BT2020 WCG, and ST2086 + Max FALL + Max CLL static metadata. The HDR10 metadata structure follows the ITU Series H Supplement 18 standard for HDR and Wide Color Gamut (WCG). There are three HDR10-related Video Usability Information (VUI) parameters: color primaries, transfer characteristics, and matrix coefficients. This VUI metadata is contained in the Sequence Parameter Set (SPS) of the intra-coded frames.

In addition to the VUI parameters, there are two HDR10-related Supplemental Enhancement Information (SEI) messages. Mastering Display Color Volume (MDCV) and Content Light Level (CLL).

  • Mastering Display Color Volume (MDCV):
    MDCV or “Mastering Display Color Volume” is indeed an important piece of metadata within the HDR10 standard, also known as ST2086. This metadata plays a significant role in ensuring that HDR content is displayed optimally on different HDR-compatible screens.
  • Max Content Light Level (MaxCLL):
    MaxCLL specifies the maximum brightness level in nits (cd/m²) for any individual frame or scene within the content. It helps your display adjust its settings for specific, exceptionally bright moments.
  • Max Frame-Average Light Level (MaxFALL):
    MaxFALL indicates the maximum frame-average brightness level in nits across the entire content, including the brightest frames. It ensures that your display can correctly reproduce the content’s overall brightness. MaxFALL complements MaxCLL by indicating the maximum frame-average brightness level across the entire content. It prevents excessive dimming or over-brightening, creating a consistent and immersive viewing experience.
  • Transfer function (EOTF – electro-optical transfer function):
    The EOTF, often based on the ST-2084 PQ curve, dictates how luminance values are encoded in the content and decoded by your display. It ensures that brightness levels are presented accurately on your screen. EOTF defines how luminance values are encoded in the content and decoded by your display.

Sample HDR10 metadata parsed using ffprobe:

Future of HDR10 & competing HDR formats

The effectiveness of HDR10 implementation is closely tied to the quality of the TV used for viewing. When applied correctly, HDR10 enhances the visual appeal of video content. However, there are other HDR formats gaining popularity, such as HDR10+, HLG (Hybrid Log-Gamma), and Dolby Vision. These formats have gained prominence due to their ability to further enhance the visual quality of videos.
Competing HDR formats, like Dolby Vision and HDR10+, are gaining popularity due to their utilization of dynamic metadata. Unlike HDR10, which relies on static metadata for the entire content, these formats adjust brightness and color information on a scene-by-scene or even frame-by-frame basis. This dynamic metadata approach delivers heightened precision and optimization for each scene, ultimately enhancing the viewing experience. The rivalry among HDR formats is fueling innovation in the HDR landscape as each format strives to surpass the other in terms of visual quality and compatibility. This ongoing competition may lead to the emergence of new technologies and standards, further expanding the possibilities of what HDR can achieve.
To sum it up, HDR10 isn’t just a buzzword, it’s a revolution in how we experience visuals in any multimedia solution. It’s the technology that takes your screen from good to mind-blowingly fantastic. HDR10 is very popular because there are no licensing fees (compared to other HDR standards) and is widely adopted by many companies and there are lot of equipment out there already. So, whether you’re a movie buff, gamer, or just someone who appreciates the beauty of visuals, HDR10 is your backstage pass to a world of incredible imagery.
With continuous advancements in technology, we at Softnautics, a MosChip Company, help businesses across various industries to provide intelligent media solutions involving the simplest to the most complex multimedia technologies. We have hands-on experience in designing high-performance media applications, architecting complete video pipelines, audio/video codecs engineering, audio/video driver development, and multimedia framework integration. Our multimedia engineering services are extended across industries ranging from Media and entertainment, Automotive, Gaming, Consumer Electronics, Security, and Surveillance.

Read our success stories related to intelligent media solutions to know more about our multimedia engineering services.

Contact us at business@softnautics.com for any queries related to your solution or for consultancy

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Exploring Machine Learning testing and its tools and frameworks

Machine learning (ML) models have become increasingly popular in many kinds of industries due to their ability to make accurate and data-driven predictions. However, developing an ML model is not a one-time process. It requires continuous improvement to ensure reliable and accurate predictions. This is where ML testing plays a critical role as we are seeing massive growth in the global artificial intelligence and machine learning market. The worldwide AIML market was valued at approximately $19.20 billion in 2022 and is anticipated to expand from $26.03 billion in 2023 to an estimated $225.91 billion by the year 2030 with a Compound Annual Growth Rate (CAGR) of 36.2% stated by Fortune Business Insights. In this article, we will explore the importance of ML testing, the benefits it provides, the various types of tests that can be conducted, and the tools and frameworks available to streamline the testing process.

What is Machine Learning (ML) testing, and why it is important?

The process of evaluating and assessing the performance of Machine Learning (ML) models, which is responsible for accuracy and reliability, is known as Machine learning (ML) testing. ML models are algorithms designed to make independent decisions based on patterns in data. Testing ML models is essential to ensure that they function as intended and produce dependable results when deployed in real-world applications. Testing of ML models involves various types of assessments and evaluations to verify the quality and effectiveness of these models. These assessments aim to identify and mitigate issues, errors, or biases in the models, ensuring that they meet their intended objectives.

Machine learning systems operate in a data-driven programming domain where their behaviour depends on the data used for training and testing. This unique characteristic underscores the importance of ML testing. ML models are expected to make independent decisions, and for these decisions to be valid, rigorous testing is essential. Good ML testing strategies aim to reveal any potential issues related to design, model selection, and programming to ensure reliable functioning.

How to Test ML Models?

Testing machine learning (ML) models is a critical step in the machine learning solution development and deployment of robust and dependable ML model. To understand the process of ML testing, let’s break down the key components of both offline and online testing.

Offline Testing

Offline testing is an essential phase that occurs during the machine learning model development and training of an ML model. It ensures that the model is performing as expected before it is deployed into a real-world environment. Here’s a step-by-step breakdown of the offline testing process.

The process of testing machine learning models involves several critical stages. It commences with requirement gathering, where the scope and objectives of the testing procedure are defined, ensuring a clear understanding of the ML system’s specific needs. Test data preparation follows, where test inputs are prepared. These inputs can either be samples extracted from the original training dataset or synthetic data generated to simulate real-world scenarios.

AIML systems are designed to answer questions without pre-existing answers. Test oracles are methods used to determine if any deviations in the ML system’s behaviour are problematic. Common techniques like model evaluation and cross-referencing are employed in this step to compare model predictions with expected outcomes. Subsequently, test execution takes place on a subset of data, with a vigilant eye on test oracle violations. Any identified issues are reported and subjected to resolution, often validated using regression tests. Finally, after successfully navigating these offline testing cycles, if no bug is identified the offline testing process ends. The ML model is then ready for deployment.

Online Testing

Online testing occurs once the ML system is deployed and exposed to new data and user behaviour in real-time. It aims to ensure that the model continues to perform accurately and effectively in a dynamic environment. Here are the key components of online testing.

  • Runtime monitoring
  • User response monitoring
  • A/B testing
  • Multi-Armed Bandit

Testing tools and frameworks

Several tools and frameworks are available to simplify and automate ML model testing. These tools provide a range of functionalities to support different aspects of testing

ML testing tools and frameworks

  • Deepchecks
    It is an open-source library designed to evaluate and validate deep learning models. It offers tools for debugging, and monitoring data quality, ensuring robust and reliable deep learning solutions.
  • Drifter-ML
    Drifter-ML is a ML model testing tool specifically written for the scikit-learn library focused on data drift detection and management in machine learning models. It empowers you to monitor and address shifts in data distribution over time, essential for maintaining model performance.
  • Kolena.io
    Kolena.io is a python-based framework for ML testing. It focuses on data validation that ensure the integrity and consistency of data. It allows to set and enforce data quality expectations, ensuring reliable input for machine learning models.
  • Robust Intelligence
    Robust Intelligence is a suite of tools and libraries for model validation and auditing in machine learning. It provides capabilities to assess bias and ensure model reliability, contributing to the development of ethical and robust AI solutions.

ML model testing is a crucial step in the development process to ensure the reliability, accuracy, and fairness of predictions. By conducting various types of tests, developers can optimize ML models, detect, and prevent errors and biases, and improve their robustness and generalization capabilities – enabling the models to perform well on new, unseen data beyond their training set. With the availability of testing tools and frameworks, the testing process can be streamlined and automated, improving efficiency and effectiveness. Implementing robust testing practices is essential for the successful deployment and operation of ML models, contributing to better decision-making and improved outcomes in diverse industries.

Softnautics, a MosChip Company provides Quality Engineering Services for embedded software, device, product, and end-to-end solution testing. This helps businesses create high-quality solutions that enable them to compete successfully in the market. Our comprehensive QE services include machine learning applications and platforms testing, dataset and feature validation, model validation and performance benchmarking, embedded and product testing, DevOps, test automation, and compliance testing.

Read our success stories related to Quality Engineering services to know more about our expertise in this domain.

Contact us at business@softnautics.com for any queries related to your solution design and testing or for consultancy.

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Artificial Intelligence (AI) utilizing deep learning techniques to enhance ADAS

Artificial Intelligence and machine learning has significantly revolutionized the Advanced Driver Assistance System (ADAS), by utilizing the strength of deep learning techniques. ADAS relies heavily on deep learning to analyze and interpret large amounts of data obtained from a wide range of sensors. Cameras, LiDAR (Light Detection and Ranging), radar, and ultrasonic sensors are examples of these sensors. The data collected in real-time from the surrounding environment of the vehicle encompasses images, video, and sensor readings.

By effectively incorporating machine learning development techniques into the training deep learning models, ADAS systems can analyze the sensor data in real-time and make informed decisions to enhance driver safety and assist in driving tasks, making it future ready for autonomous driving. They can also estimate distances, velocities, and trajectories of surrounding objects, allowing ADAS systems to predict potential collisions and provide timely warnings or take preventive actions. Let’s dive into the key steps of deep learning techniques in the Advanced Driver Assistance System and tools commonly used in the development and deployment of ADAS systems.

Key steps in the development and deployment of deep learning models for ADAS

Data preprocessing

Data preprocessing in ADAS focuses on preparing collected data for effective analysis and decision-making. It involves tasks such as cleaning data to remove errors and inconsistencies, handling missing values through interpolation or extrapolation, addressing outliers, and normalizing features. For image data, resizing ensures consistency, while normalization methods standardize pixel values. Sensor data, such as LiDAR or radar readings, may undergo filtering techniques like noise removal or outlier detection to enhance quality.

By performing these preprocessing steps, the ADAS system can work with reliable and standardized data, improving the accuracy of predictions and overall system performance.

Network architecture selection

Network architecture selection is another important process in ADAS as it optimizes performance, ensures computational efficiency, balances model complexity, and interpretability, enables generalization to diverse scenarios, and adapts to hardware constraints. By choosing appropriate architectures, such as Convolutional Neural Networks (CNNs) for visual tasks and Recurrent Neural Networks (RNNs) or Long Short-Term Memory Networks (LSTM) for sequential data analysis, ADAS systems can improve accuracy, achieve real-time processing, interpret model decisions, and effectively handle various driving conditions while operating within resource limitations. CNNs utilize convolutional and pooling layers to process images and capture spatial characteristics, while RNNs and LSTMs capture temporal dependencies and retain memory for tasks like predicting driver behavior or detecting drowsiness.

Training data preparation

Training data preparation in ADAS helps in data splitting, data augmentation, and other necessary steps to ensure effective model learning and performance. Data splitting involves dividing the collected datasets into training, validation, and testing sets, enabling the deep learning network to be trained, hyperparameters to be tuned using the validation set, and the final model’s performance to be evaluated using the testing set.

Data augmentation techniques, such as flipping, rotating, or adding noise to images, are employed to enhance the diversity and size of the training data, mitigating the risk of overfitting. These steps collectively enhance the quality, diversity, and reliability of the training data, enabling the ADAS system to make accurate and robust decisions.

Network Architectures and Autonomous Features in ADAS

Training process

The training process in an ADAS system involves training deep learning models using optimization algorithms and loss functions. These methods are employed to optimize the model’s performance, minimize errors, and enable accurate predictions in real-world driving scenarios. By adjusting the model’s parameters through the optimization process, the model learns from data and improves its ability to make informed decisions, enhancing the overall effectiveness of the ADAS system.

Object detection and tracking

Object detection and tracking is also a crucial step in ADAS as it enables systems to detect the driving lanes or implement pedestrian detection to improve road safety. There are several techniques to perform object detection in ADAS, some popular deep learning-based techniques are Region-based Convolutional Neural Networks (R-CNN), Single Shot MultiBox Detector (SSD) and You Only Look Once (YOLO).

Deployment

The deployment of deep learning models in ADAS ensure that the trained deep learning models are compatible with the vehicle’s hardware components, such as an onboard computer or specialized processors. The model must be adapted so that it can function seamlessly within the hardware architecture that already exists. The models need to be integrated into the vehicle’s software stack, allowing them to communicate with other software modules and sensors. They process real-time sensor data from various sources, such as cameras, LiDAR, radar, and ultrasonic sensors. These deployed models analyze incoming data streams, detect objects, identify lane markings, and make driving-related decisions based on their interpretations. This real-time processing is crucial for providing timely warnings and assisting drivers in critical situations.

Continuous learning and updating

  • Online learning: The ADAS system can be designed to continually learn and update the deep learning models based on new data and experiences. This involves incorporating mechanisms to adapt the models to changing driving conditions, new scenarios, and evolving safety requirements.
  • Data collection and annotation: Continuous learning requires the collection of new data and annotations to train updated models. This may involve data acquisition from various sensors, manual annotation or labeling of the collected data, and updating the training pipeline accordingly.
  • Model re-training and fine-tuning: When new data is collected, the existing deep learning models can be re-trained or fine-tuned using the new data to adapt to emerging patterns or changes in the driving environment.

Now let us see commonly used tools, frameworks and libraries in ADAS development.

  • TensorFlow: An open-source deep learning framework developed by Google. It provides a comprehensive ecosystem for building and training neural networks, including tools for data pre-processing, network construction, and model deployment.
  • PyTorch: Another widely used open-source deep learning framework that offers dynamics computational graphs, making it suitable for research and prototyping. It provides a range of tools and utilities for building and training deep learning models.
  • Keras: A high-level deep learning library that runs on top of TensorFlow. It offers a user-friendly interface for building and training neural networks, making it accessible for beginners and rapid prototyping.
  • Caffe: A deep learning framework specifically designed for speed and efficiency, often used for real-time applications in ADAS. It provides a rich set of pre-trained models and tools for model deployment.
  • OpenCV: A popular computer vision library that offers a wide range of image and video processing functions. It is frequently used for pre-processing sensor data, performing image transformations, and implementing computer vision algorithms in ADAS applications.

To summarize, the integration of deep learning techniques into ADAS systems empowers them to analyze and interpret real-time data from various sensors, enabling accurate object detection, collision prediction, and proactive decision-making. This ultimately contributes to safer and more advanced driving assistance capabilities.

At Softnautics, a MosChip company, our team of AIML experts are dedicated to developing optimized Machine Learning solutions tailored for diverse techniques in deep learning. Our expertise covers deployment on cloud, edge platforms like FPGA, ASIC, CPUs, GPUs, TPUs, and neural network compilers, ensuring the implementation of efficient and high-performance artificial intelligence and machine learning solutions based on cognitive computing, computer vision, deep learning, Natural Language Processing (NLP), vision analytics, etc.

Read our success stories related to Artificial Intelligence and Machine Learning expertise to know more about our AI engineering services.

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Audio Validation in Multimedia Systems and its Parameters

In the massive world of multimedia, sound stands as a vital component that adds depth to the overall encounter. Whether it’s streaming services, video games, or virtual reality, sound holds a crucial role in crafting immersive and captivating content. Nevertheless, ensuring top-notch audio quality comes with its own set of challenges. This is where audio validation enters the scene. Audio validation involves a series of comprehensive tests and assessments to guarantee that the sound in multimedia systems matches the desired standards of accuracy and quality. Market Research Future predicts that the consumer audio market sector will expand from a valuation of USD 82.1 billion in 2023 to approximately USD 274.8 billion by 2032. This growth trajectory indicates a Compound Annual Growth Rate (CAGR) of about 16.30% within the forecast duration of 2023 to 2032.

What is Audio?

Audio is an encompassing term that refers to any sound or noise perceptible to the human ear, arising from vibrations or waves at frequencies within the range of 20 to 20,000 Hz. These frequencies form the canvas upon which the symphony of life is painted, encompassing the gentlest whispers to the most vibrant melodies, weaving a sonic tapestry that enriches our auditory experiences and connects us to the vibrancy of our surroundings.

There are two types of audio.

  • Analog audio
    Analog audio refers to the representation and transmission of sound as continuous, fluctuating electrical voltage or current signals. These signals directly mirror the variations in air pressure caused by sound waves, making them analogous to the original acoustic translating the “analogous” nature of sound into electrical signals. When recorded in an analog format, what is heard corresponds directly to what is stored, maintaining the continuous waveforms but amplitude can differ which is measured in decibels (dB).
  • Digital audio
    Digital audio is at the core of modern audio solutions. It represents sound in a digital format, allowing audio signals to be transformed into numerical data that can be stored, processed, and transmitted by computers and digital devices. Unlike analog audio, which directly records sound wave fluctuations, digital audio relies on a process known as analog-to-digital conversion (ADC) to convert the continuous analog waveform into discrete values. These values, or samples, are then stored as binary data, enabling precise reproduction and manipulation of sound. Overall, digital audio offers advantages such as ease of storage, replication, and manipulation, making it the foundation of modern communication systems and multimedia technology.

Basic measurable parameters of audio

Frequency

Frequency, a fundamental concept in sound, measures the number of waves passing a fixed point in a specific unit of time. Typically measured in Hertz (Hz), it represents the rhythm of sound. Mathematically, frequency (f) is inversely proportional to the time period (T) of one wave, expressed as f = 1/T.

Sample rate

Sample rate refers to the number of digital samples captured per second to represent an audio waveform. Measured in Hz, it dictates the accuracy of audio reproduction. For instance, a sample rate of 44.1kHz means that 44,100 samples are taken each second, enabling the digital representation of the original sound. Different audio sample rates are 8kHz, 16kHz, 24kHz, 48kHz, etc.

Bit depth or word size

Bit depth, also known as word size, signifies the number of bits present in each audio sample. This parameter determines the precision with which audio is represented digitally. A higher bit depth allows for a finer representation of the sound’s amplitude and nuances. Common options include 8-bit, 16-bit, 24-bit, and 32-bit depths.

Decibels (dB)

Decibels (dB) are logarithmic units employed to measure the intensity of sound or the ratio of a sound’s power to a reference level. This unit allows us to express the dynamic range of sound, spanning from the faintest whispers to the loudest roars.
Amplitude

Amplitude relates to the magnitude or level of a signal. In the context of audio, it directly affects the volume of sound. A higher amplitude translates to a louder sound, while a lower amplitude yields a softer tone. Amplitude shapes the auditory experience, from delicate harmonies to thunderous crescendos.

Root mean square (RMS) power

RMS power is a vital metric that measures amplitude in terms of its equivalent average power content, regardless of the shape of the waveform. It helps to quantify the energy carried by an audio signal and is particularly useful for comparing signals with varying amplitudes.

General terms used in an audio test

Silence

It denotes the complete absence of any audible sound. It is characterized by a flat line on the waveform, signifying zero amplitude. This void of sound serves as a stark contrast to the rich tapestry of auditory experiences.

Echo

An echo is an auditory effect that involves the repetitive playback of a selected audio, each iteration softer than the previous one. This phenomenon is achieved by introducing a fixed delay time between each repetition. The absence of pauses between echoes creates a captivating reverberation effect, commonly encountered in natural environments and digital audio manipulation.

Clipping

Clipping is a form of distortion that emerges when audio exceeds its dynamic range, often due to excessive loudness. When waveforms surpass the 0 dB limit, their peaks are flattened at this ceiling. This abrupt truncation not only results in a characteristic flat top but also alters the waveform’s frequency content, potentially introducing unintended harmonics.

DC-Offset

It is an alteration of a signal’s baseline from its zero point. In the waveform view, this shift is observed as the signal not being centred on the 0.0 horizontal line. This offset can lead to distortion and affect subsequent processing stages, warranting careful consideration in audio manipulation.

Gain

Gain signifies the ratio of output signal power to input signal power. It quantifies how much a signal is amplified, contributing to variations in its amplitude. Expressed in decibels (dB), positive gain amplifies the signal’s intensity, while negative gain reduces it, influencing the overall loudness and dynamics.

Harmonics

Harmonics are spectral components that occur at exact integer multiples of a fundamental frequency. These multiples contribute to the timbre and character of a sound, giving rise to musical richness and complexity. The interplay of harmonics forms the basis of musical instruments’ distinct voices.

Frequency response

Frequency response offers a visual depiction of how accurately an audio component reproduces sound across the audible frequency range. Represented as a line graph, it showcases the device’s output amplitude (in dB) against frequency (in Hz). This curve provides insights into how well the device captures the intricate nuances of sound.

Amplitude response

It measures the gain or loss of a signal as it traverses an audio system. This measure is depicted on the frequency response curve, showcasing the signal’s level in decibels (dB). The amplitude response unveils the system’s ability to faithfully transmit sound without distortion or alteration.

Types of testing performed for audio

Signal-to-noise ratio (SNR)

Testing the Signal-to-noise ratio (SNR) is a fundamental step in audio validation. It assesses the differentiation between the desired audio signal and the surrounding background noise, serving as a crucial metric in audio quality evaluation. SNR quantifies audio fidelity and clarity by calculating the ratio of signal power to noise power, typically expressed in decibels (dB). Higher SNR values signify a cleaner and more comprehensible auditory experience, indicating that the desired signal stands out prominently from the background noise. This vital audio parameter can be tested using specialized equipment (like audio analyzers and analog-to-digital converters) and software tools, ensuring that audio systems deliver optimal clarity and quality.

Latency

Latency refers to the time delay between initiating an audio input and its corresponding output, plays a pivotal role in audio applications where synchronization and responsiveness are critical, like live performances or interactive systems. Achieving minimal latency, often measured in milliseconds, is paramount for ensuring harmony between user actions and audio responses. Rigorous latency testing, employing methods such as hardware and software measurements, round-trip tests, real-time monitoring, and buffer size adjustments, is essential. Additionally, optimizing both software and hardware components for low-latency performance and conducting tests in real-world scenarios are crucial steps. These efforts guarantee that audio responses remain perfectly aligned with user interactions, enhancing the overall experience in various applications.

Audio synchronization

It is a fundamental element that harmonizes the outputs of various audio channels. This test ensures that multiple audio sources, such as those in surround sound setups, are precisely aligned in terms of timing and phase. The goal is to eliminate dissonance or disjointedness among the channels, creating a unified and immersive audio experience. By validation synchronization, audio engineers ensure that listeners are enveloped in a seamless soundscape where every channel works in concert.

Apart from the above tests we also need to validate audio according to the algorithm used for audio processing.

Audio test setup

Now let us see the types of audio distortions.

Phase Distortion

Phase distortion is a critical consideration when dealing with audio signals. It measures the phase shift between input and output signals in audio equipment. To control phase distortion, it’s essential to use high-quality components in audio equipment and ensure proper signal routing.

Clipping Distortion

Clipping distortion is another type of distortion that can degrade audio quality. This distortion occurs when the signal exceeds the maximum amplitude that a system can handle. To prevent clipping distortion, it’s important to implement a limiter or compressor in the audio chain. These tools can control signal peaks, preventing them from exceeding the clipping threshold. Additionally, adjusting input levels to ensure they stay within the system’s operational range is crucial for managing and mitigating clipping distortion.

Harmonic Distortion

Harmonic distortion introduces unwanted harmonics into audio signals, which can negatively impact audio quality. These harmonics can be odd or even, with “odd” harmonics having frequencies that are an odd number of times higher than the fundamental frequency, and even harmonics having an even number of times higher frequency. To mitigate harmonic distortion, it’s advisable to use high-quality amplifiers and speakers that produce fewer harmonic distortions.

The commonly used test file will have sine tone, sine sweep, pink noise, and white noise.

There are different tools to create, modify, play or analyze audio files. Below are few of them.

Adobe Audition

Adobe Audition is a comprehensive toolset that includes multitrack, waveform, and spectral display for creating, mixing, editing, and restoring audio content.

Audacity
Audacity is a free and open-source digital audio editor and recording application software, available for Windows, macOS, Linux, and other Unix-like operating systems.

There are many devices nowadays involving the application of audio. Devices are headphones, soundbars speakers, earbuds, or devices with audio processors to process different audio algorithms (i.e., Noise cancellation, Voice wake, ANC, etc.).

At Softnautics, a MosChip company, we understand the importance of audio validation in multimedia systems. Our team of media experts enable businesses to design and develop multimedia systems and solutions involving media infotainment systems, audio/video solutions, media streaming, camera-enabled applications, immersive solutions, and more on diverse architectures and platforms including multi-core ARM, DSP, GPUs, and FPGAs. Our multimedia engineering services are extended across industries ranging from Gaming & Entertainment, Automotive, Security, and Surveillance.

Read our success stories related to multimedia engineering to know more about our services.

Contact us at business@softnatics.com for any queries related to your media solution or for consultancy.

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A comprehensive approach to enhancing IoT Security with Artificial Intelligence

In today’s interconnected society, the Internet of Things (IoT) has seamlessly integrated itself into our daily lives. From smart homes to industrial automation, the number of IoT devices continues to grow exponentially. However, along with these advancements comes the need for robust security measures to protect the sensitive data flowing through these interconnected devices. It is predicted that the global IoT security market will grow significantly. This growth results from the increasing deployment of IoT devices, and the growing sophistication of cyberattacks. According to MarketsandMarkets, the size of the global IoT security market will increase from USD 20.9 billion in 2023 to USD 59.2 billion by 2028 at a Compound Annual Growth Rate (CAGR) of 23.1%. This article explores the challenges of IoT security and how Artificial Intelligence (AI) can be an effective approach to addressing these challenges.

Artificial intelligence (AI) can significantly enhance IoT security by analyzing vast data volumes to pinpoint potential threats like malware or unauthorized access, along with identifying anomalies in device behavior that may signal a breach. This integration of AI and IoT security strategies has emerged as a powerful response to these challenges. IoT security encompasses safeguarding devices, networks, and data against unauthorized access, tampering, and malicious activities. Given the proliferation of IoT devices and the critical concern of securing their generated data, various measures are vital, including data encryption, authentication, access control, threat detection, and ensuring up-to-date firmware and software.

Understanding IoT security challenges

The IoT has brought about several advancements and convenience through interconnected devices. However, this connectivity has also given rise to significant security challenges. Let us see those challenges below.

Remote exposure and vulnerability

The basic architecture of IoT devices, which is designed for seamless internet connectivity, introduces a significant remote exposure challenge. As a result, they are vulnerable to data breaches initiated by third parties. Because of the inherent accessibility, attackers can infiltrate systems, remotely manipulates devices, and execute malicious activities. These vulnerabilities enable the effectiveness of tactics like phishing attacks. To mitigate this challenge, IoT security strategies must encompass rigorous intrusion detection systems that analyze network traffic patterns, device interactions, and anomalies. Employing technologies like AI and machine learning and behavior analysis can identify irregularities indicative of unauthorized access, allowing for real-time response and mitigation. Furthermore, to strengthen the security of IoT devices, asset protection, secure boot processes, encryption, and robust access controls must be implemented at every entry point, which includes cloud security.

Industry transformation and cybersecurity preparedness

The seamless integration of IoT devices within digital transformation industries such as automotive and healthcare introduces a critical cybersecurity challenge. While these devices enhance efficiency, their increased reliance on interconnected technology enhances the impact of successful data breaches. A comprehensive cybersecurity framework is required due to the complex interplay of IoT devices, legacy systems, and data flows. To address this issue, businesses must implement proactive threat modelling and risk assessment practices. Penetration testing, continuous monitoring, and threat intelligence might help in the early detection of vulnerabilities and the deployment of appropriate solutions. Setting industry-specific security standards, encouraging cross-industry collaboration, and prioritizing security investments are critical steps in improving preparedness for evolving cyber threats.

Resource-constrained device security

IoT devices with limited processing power and memory present a significant technical challenge for implementing effective security. Devices in the automotive sector, such as Bluetooth-enabled ones, face resource constraints that limit the deployment of traditional security mechanisms such as powerful firewalls or resource-intensive antivirus software. To address this challenge, security approaches must emphasize resource-efficient cryptographic protocols and lightweight encryption algorithms that maintain data integrity and confidentiality without overwhelming device resources. Adopting device-specific security policies and runtime protection mechanisms can also dynamically adapt to resource constraints while providing continuous cyber threat defence. Balancing security needs with resource constraints remains a top priority in IoT device security strategies. Implementing device-specific security policies and runtime protection mechanisms can also dynamically adapt to resource constraints while providing continuous cyber threat defence. Balancing security needs with resource constraints remains a top priority in IoT device security strategies.

AI’s effective approach to addressing IoT security challenges

AI can significantly enhance IoT security. By leveraging AI’s advanced capabilities in data analysis and pattern recognition, IoT security systems can become more intelligent and adaptive. Some of the ways AI can enhance IoT security include:

Threat detection and authentication/access control: The integration of AI in IoT devices enhances both threat detection and authentication/access control mechanisms. AI’s exceptional ability to detect anomalies and patterns in real-time enables proactive threat detection, reducing the risk of data breaches or unauthorized access. By leveraging advanced AI and machine learning algorithms, network traffic patterns and device behavior can be expertly evaluated, distinguishing between legitimate activities and potential threats. Moreover, AI-powered authentication and access control systems utilize machine learning techniques to detect complex user behavior patterns and identify potential unauthorized access attempts. This combination of AI algorithms and authentication raises the security bar, ensuring that only authorized users interact with IoT devices while preventing unauthorized access. Overall, the integration of AI improves device security through refined threat detection and adaptive authentication mechanisms

Data encryption: AI can revolutionize data protection in IoT networks by developing strong encryption algorithms. These algorithms can dynamically adapt encryption protocols based on traffic patterns and data sensitivity, thanks to AI’s predictive capabilities. Furthermore, AI-powered encryption key management promotes secure key exchange and storage. The role of AI in encryption goes beyond algorithms to include the efficient management of passwords, which are the foundation of data privacy. The combination of AI and encryption improves data security on multiple levels, from algorithmic improvements to key management optimization.

AI’s approach towards IoT security challenges

Firmware and software updates: AI-powered systems are proficient at maintaining IoT devices that are protected against changing threats. By leveraging AI’s capacity for pattern recognition and prediction, these systems can automate the identification of vulnerabilities that necessitate firmware and software updates. The AI-driven automation streamlines the update process, ensuring minimal latency between vulnerability discovery and implementation of necessary patches. This not only improves the security posture of IoT devices but also reduces the load on human-intensive update management processes. The synergy of AI and update management constitutes a proactive stance against potential threats.

The future of AI and IoT security

The intersection of AI and IoT is an area of rapid development and innovation. As AI technology progresses, we can expect further advancements in IoT security. AI systems will become more intelligent, capable of adapting to new, emerging threats, and thwarting sophisticated attacks. Additionally, AI engineering and machine learning development will drive the creation of more advanced and specialized IoT security solutions.

In conclusion, the security of IoT devices and networks is of paramount importance in our increasingly connected world. The comprehensive approach of integrating Artificial Intelligence and Machine Learning services can greatly enhance IoT security by detecting threats, encrypting data, enforcing authentication and access control, and automating firmware and software updates. As the field continues to advance, AI solutions will become indispensable in protecting our IoT ecosystems and preserving the privacy and integrity of the data they generate.

At Softnautics, a MosChip company, our team of AIML experts are dedicated to developing secured Machine Learning solutions specifically tailored for a diverse array of edge platforms. Our expertise covers FPGA, ASIC, CPUs, GPUs, TPUs, and neural network compilers, ensuring the implementation of intelligent, efficient and high-performance AIML solutions based on cognitive computing, computer vision, deep learning, Natural Language Processing (NLP), vision analytics, etc.

Read our success stories related to Artificial Intelligence and Machine Learning services to know more about our expertise under AIML.

Contact us at business@softnautics.com for any queries related to your solution design or for consultancy.

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Importance of VLSI Design Verification and its Methodologies

In the dynamic world of VLSI (Very Large-Scale Integration), the demand for innovative products is higher than ever. The journey from a concept to a fully functional product involves many challenges and uncertainties where design verification plays a critical role in ensuring the functionality and reliability of complex electronic systems by confirming that the design meets its intended requirements and specifications. In 2023, the global VLSI market is expected to be worth USD 662.2 billion, according to Research and Markets. According to market analysts, it will be worth USD 971.71 billion in 2028, increasing at a Compound Annual Growth Rate (CAGR) of 8%.

In this article, we will explore the concept of design verification, its importance, the process involved, the languages and methodologies used, and the future prospects of this critical phase in the development of VLSI design.

What is design verification and its importance?

Design verification is a systematic process that validates and confirms that a design meets its specified requirements and sticking to design guidelines. It is a vital step in the product development cycle, aiming to identify and rectify design issues early on to avoid costly and time-consuming rework during later stages of development. Design verification ensures that the final product, whether it is an integrated circuit (IC), a system-on-chip (SoC), or any electronic system, functions correctly and reliably. SoC and ASIC verification play a key role in achieving reliable and high-performance integrated circuits.

VLSI design verification involves two types of verification.

  • Functional verification
  • Static Timing Analysis

These verification steps are crucial and need to be performed as the design advances through its various stages, ensuring that the final product meets the intended requirements and maintains high quality.

Functional verification: It is a pivotal stage in VLSI design aimed at ensuring the correct functionality of chip used under various operating conditions. It involves testing the design to verify whether it behaves according to its intended specifications and functional requirements. This verification phase is essential because VLSI designs are becoming increasingly complex, and human errors or design flaws are bound to occur during the development process. The process of functional verification in VLSI design is as follow.

  • Identification and preparation: At this stage, the design requirements are identified, and a verification plan is prepared. The plan outlines the goals, objectives, and strategies for the subsequent verification steps.
  • Planning: Once the verification plan is ready, the planning stage involves resource allocation, setting up the test environment, and creating test cases and test benches.
  • Developing: The developing stage focuses on coding the test benches and test cases using appropriate languages and methodologies. This stage also includes building and integrating simulation and emulation environments to facilitate thorough testing.
  • Execution: In the execution stage, the test cases are run on the design to validate its functionality and performance. This often involves extensive simulations and emulators to cover all possible scenarios.
  • Reports: Finally, the verification process concludes with the generation of detailed reports, including bug reports, coverage statistics, and an overall verification status. These reports help in identifying areas that need improvement and provide valuable insights for future design iterations.

Static Timing Analysis (STA): Static Timing Analysis is another crucial step in VLSI design that focuses on validating the timing requirements of the design. In VLSI designs, timing is crucial because it determines how signals propagate through the chip and affects the overall performance and functionality of the integrated circuit. The process is used to determine the worst-case and best-case signal propagation delays in the design. It analyzes the timing paths from the source (input) to the destination (output) and ensures that the signals reach their intended destinations within the required clock cycle without violating any timing constraints. During STA, the design is divided into time paths so that timing analysis can be performed. Each time path is composed of the following factors.

  • Startpoint: The startpoint of a timing route is where data is launched by a clock edge or is required to be ready at a specific time. A register clock pin or an input port must be present at each startpoint.
  • Combinational Logic Network: It contains parts that don’t have internal memory. Combinational logic can use AND, OR, XOR, and inverter elements but not flip-flops, latched, registers, or RAM.
  • Endpoint: This is where a timing path ends when data is caught by a clock edge or when it must be provided at a specific time. At each endpoint, there must be an output port or a pin for register data input.

Languages and methodologies used in design verification

Design verification employs various languages and methodologies to effectively test and validate VLSI designs.

  • SystemVerilog (SV) verification: SV provides an extensive set of verification features, including object-oriented programming, constrained random testing, and functional coverage.
  • Universal Verification Methodology (UVM): UVM is a standardized methodology built on top of SystemVerilog that enables scalable and reusable verification environments, promoting design verification efficiency and flexibility.
  • VHDL (VHSIC Hardware Descriptive Language): VHDL is widely used for design entry and verification in the VLSI industry, offering strong support for hardware modelling, simulation, and synthesis.
  • e (Specman): e is a verification language developed by Yoav Hollander for his Specman software that offers powerful verification capabilities, such as constraint-driven random testing and transaction-level modelling. Later it was renamed as Verisity which was acquired by Cadence Design Systems.
  • C/C++ and Python: These programming languages are often used for building verification frameworks, test benches, and script-based verification flows.

VLSI design verification languages and methodologies

Advantages of design verification
Effective design verification offers numerous advantages to the VLSI industry.

  • It reduces time-to-market for VLSI products
  • The process ensures compliance with design specifications
  • It enhances design resilience to uncertainties
  • Verification minimizes the risks associated with design failures

The Future of design verification
The future of design verification looks promising. New methodologies with Artificial Intelligence and Machine Learning assisted verification is emerging to address verification challenges effectively. The adoption of advanced verification tools and methodologies will play a significant role in improving the verification process’s efficiency, effectiveness, and coverage. Moreover, with the growth of SoC, ASIC, and low power designs, the demand for specialized VLSI verification will continue to rise.

Design verification is an integral part of the product development process, ensuring reliability, functionality, and performance. Employing various languages, methodologies, and techniques, design verification addresses the challenges posed by complex designs and emerging technologies. As the technology landscape evolves, design verification will continue to play a vital role in delivering innovative and reliable products to meet the demands of the ever-changing world.

Softnautics, a MosChip Company offers a complete range of semiconductor design and verification services, catering to every stage of ASIC/FPGA/SoC development, from initial concept to final deployment. Our highly skilled VLSI team has the capability to design, develop, test, and verify customer solutions involving a wide range of silicon platforms, tools and technology. Softnautics also has technology partnerships with leading semiconductor giants like Xilinx, Lattice Semiconductor and Microchip.

Read our success stories related to VLSI design and verification services to know more about our expertise in the domain.

Contact us at business@softnautics.com for any queries related to your solution design or for consultancy.

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The rise of FPGA technology in High-Performance Computing

In recent years, Field Programmable Gate Arrays (FPGAs) have emerged as a viable technology for High-Performance Computing (HPC), thanks to their customizability, parallel processing, and low latency. High-Performance Computing (HPC) is a field of computing that involves the use of advanced hardware and software resources to perform complex calculations and data processing tasks at significantly higher speeds and larger scales than conventional computing systems. HPC is designed to solve computationally intensive problems and analyze massive datasets in the shortest possible time. It involves using advanced computing technologies, including software development, to perform complicated tasks that require massive processing power. These tasks include scientific simulations, data analytics, and machine learning. HPC plays a critical role in various industries, such as finance, healthcare, and oil and gas exploration. Industry reports predict that the FPGA market is expected to increase from USD 9.7 billion in 2023 to USD 19.1 billion by 2028. This is growing at a Compound Annual Growth Rate (CAGR) of 14.6%.

A brief history of FPGA and its relevance to High-Performance Computing
Around the 1980s, computer designs became standardized, making it difficult for smaller companies to compete with the major players. However, in 1984, Xilinx introduced the first FPGA. This created an emerging market, allowing smaller companies to produce chips previously impossible. FPGAs are semiconductor devices that can be reprogrammed after manufacturing. This allows users to configure digital logic circuits and create custom hardware accelerators for specific applications, a process known as FPGA design. Initially, FPGAs were mainly used in niche applications due to their limited capacity compared to Application-Specific Integrated Circuits (ASICs). Over the years, FPGAs have undergone significant advancements in terms of capacity, speed, and efficiency. This has made them increasingly relevant in various industries, including High-Performance Computing (HPC). Their reconfigurability and parallel processing capabilities make them ideal for computationally intensive tasks commonly found in HPC environments. FPGAs can be seamlessly integrated into existing HPC infrastructures, complementing traditional CPU-based clusters and GPU-based systems. By offloading specific tasks to FPGAs, HPC systems can achieve higher performance, lower power consumption, and improved efficiency.

Advantages of FPGAs in High-Performance Computing

Increased performance: FPGAs can significantly enhance performance by offloading compute-intensive tasks from traditional processors. They provide parallel processing capabilities that can execute complex algorithms at blazing speeds, surpassing the performance of conventional CPUs.
Energy efficient: FPGAs offer remarkable energy efficiency compared to CPUs or GPUs. Unlike CPUs and GPUs, which are designed to be general purpose processors capable of running a wide range of application, FPGAs can be programmed to implement specific functions or algorithms directly in hardware. This means that FPGAs can be optimized for specific tasks and can perform those tasks with much higher efficiency than general-purpose processors.
Reduced latency: FPGAs can drastically reduce data processing latency by eliminating data transfer between different components. By leveraging FPGA acceleration and executing tasks directly on FPGA hardware, latency is minimized, enabling real-time processing of time-sensitive applications.

Advantages of FPGAs in HPC

Use cases for FPGAs in High-Performance Computing
The deployment of FPGAs in these diverse HPC applications underscores their adaptability and versatility. As FPGA technology continues to advance, its relevance in HPC is expected to grow further, empowering researchers and industries to tackle complex challenges and drive innovation in various domains.

Machine learning and AI: FPGAs are now useful tools for designing applications based on artificial intelligence and machine learning. Because FPGAs can manage complex calculations in parallel, they can run neural network models faster and effectively. High-performance computing systems can execute machine learning models faster and with less energy usage by delegating some tasks to FPGAs. This makes FPGAs ideal for real applications. FPGAs makes it possible to process massive amounts of data quickly which facilitates the efficient operation of various AI applications.

Financial modelling: Real-time data analysis, risk analysis, and algorithmic trading necessitates high-speed processing power in the fast-paced world of finance. FPGAs enable traders and financial analysts to execute financial models and simulations with low latency, resulting in quicker and more accurate decision-making. High-frequency trading environments, where every microsecond counts, benefit from the FPGA capacity to handle concurrent data streams and sophisticated computations counts.

Video and image processing: From surveillance systems to medical imaging to multimedia and entertainment, the effective processing of visual data is essential in a variety of applications. The parallel architecture of FPGAs makes them excellent at processing images and video. The FPGA-based acceleration of real-time video analytics, object detection, image recognition, and computer vision algorithms enable quick analysis and decision-making in urgent situations.

The Future of FPGAs in High-Performance Computing
FPGAs have the potential to transform HPC by effectively handling big data, improving machine learning, advancing scientific research, and boosting the performance of AI applications. Addressing challenges related to standardization and skill requirements will be crucial to unlocking the full potential of FPGAs in HPC and realizing their impact on various industrial domains. Additionally, FPGAs offer significant enhancements for artificial intelligence applications, which are increasingly integral to many HPC use cases. The ability to accelerate AI inference tasks, such as real-time image analysis, natural language understanding, and decision-making, is critical in fields like autonomous vehicles, medical diagnostics, and robotics.

In conclusion, FPGAs have made significant progress over the past few years and are increasingly being considered for use in HPC applications as they can be reprogrammed to carry out particular tasks. Traditional CPUs and GPUs struggle to match the flexibility and performance of FPGAs. FPGAs appear to have a bright future in high-performance computing overall. FPGAs are likely to become a more significant component of the HPC landscape as they grow in strength, efficiency, and programming ease.

Softnautics, a MosChip company offers the best design practices and the right selection of technology stacks to provide secure FPGA design, software development, and embedded system services. We help businesses in building next-gen high-performance systems/solutions/products with semiconductor services like platform enablement, firmware & driver development, OS porting & bootloader optimization, middleware integration, and more across various platforms.

Read our success stories related to FPGA/VLSI design services to know more about our expertise in the domain.

Contact us at business@softnautics.com for any queries related to your solution design or for consultancy.

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