onsemi Analyst Day 2023

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onsemi held its annual Analyst Day on May 16 2023. A video recording below.



PDF slides are also available here: https://www.onsemi.com/site/pdf/2023_Analyst_Day_Presentation.pdf

Image sensors-related slides start around #63.



















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12 ps resolution Vernier time-to-digital converter

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Huang et al. from Shanghai Advanced Research Institute recently published a paper titled "A 13-Bit, 12-ps Resolution Vernier Time-to-Digital Converter Based on Dual Delay-Rings for SPAD Image Sensor" in Sensors journal.

Link: https://www.mdpi.com/1424-8220/21/3/743

Abstract:
A three-dimensional (3D) image sensor based on Single-Photon Avalanche Diode (SPAD) requires a time-to-digital converter (TDC) with a wide dynamic range and fine resolution for precise depth calculation. In this paper, we propose a novel high-performance TDC for a SPAD image sensor. In our design, we first present a pulse-width self-restricted (PWSR) delay element that is capable of providing a steady delay to improve the time precision. Meanwhile, we employ the proposed PWSR delay element to construct a pair of 16-stages vernier delay-rings to effectively enlarge the dynamic range. Moreover, we propose a compact and fast arbiter using a fully symmetric topology to enhance the robustness of the TDC. To validate the performance of the proposed TDC, a prototype 13-bit TDC has been fabricated in the standard 0.18-µm complementary metal–oxide–semiconductor (CMOS) process. The core area is about 200 µm × 180 µm and the total power consumption is nearly 1.6 mW. The proposed TDC achieves a dynamic range of 92.1 ns and a time precision of 11.25 ps. The measured worst integral nonlinearity (INL) and differential nonlinearity (DNL) are respectively 0.65 least-significant-bit (LSB) and 0.38 LSB, and both of them are less than 1 LSB. The experimental results indicate that the proposed TDC is suitable for SPAD-based 3D imaging applications.
 

Structure and operation of a typical Single-Photon Avalanche Diode (SPAD)-based direct time-of-flight (D-ToF) system.


Principle block diagram of the proposed vernier time-to-digital converter (TDC).




The architecture of the TDC core implemented by the 16-stages dual delay-rings.

The timing diagram of the TDC core.



Schematic of the proposed pulse-width self-restricted (PWSR) delay element.


The simulated results of the proposed PWSR delay element: (a) dependence of the delay time on the controlled voltage VNL/VNS and (b) dependence of the delay time on temperature.



Block diagram of the 3D image sensor based on our proposed TDC (right) and its pixel circuit schematic (left).

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IDQuantique provides QRNG capabilities to Samsung Galaxy phones

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From IDQuantique: https://www.idquantique.com/sk-telecom-and-samsung-unveil-the-galaxy-quantum-4/

SK Telecom and Samsung unveil the Galaxy Quantum 4, providing more safety and performance with IDQ’s QRNG Chip

Geneva, June 12th 2023

ID Quantique (IDQ), the world leader in quantum-safe security solutions, SK Telecom and Samsung Electronics, have worked together to release the ‘Galaxy Quantum 4’, the fourth Samsung smartphone equipped with quantum technology, designed to protect customers’ information.

With features matching those of Samsung’s flagship smartphones of the S23 series – i.e. waterdrop camera with image stabilization (OIS) and nightography (night/low-light shooting), rear glass design, large capacity battery – along with strengthened quantum-safe technology, the Galaxy Quantum 4 will be a new choice for customers who value both high performance and security.

Like its predecessor, the Galaxy Quantum 4 is equipped with the world’s smallest (width 2.5mm x length 2.5 mm) Quantum Random Number Generator (QRNG) chipset, designed by ID Quantique; enabling trusted authentication and encryption of information. It allows smartphone holders to use an even wider number of applications and services in a safer and more secure manner by generating unpredictable true random numbers.

IDQ’s QRNG chip enhances the security of a very large number of services provided by the operator. QRNG protects the process from log-in/authentication/payment/unlock/OTP generation of service apps ranging from financial apps to social media apps and games offering a much higher level of trust to the users.

As an example, when an application provides authentication services, sensitive data such as fingerprints and facial images must be protected. Our QRNG, embedded in this new smartphone, can therefore be leveraged to generate encryption keys and, in conjunction with the keystore of the terminal, provide quantum enhanced security every time a user logs in to the app. The QRNG is also used to encrypt data stored in the external memory card.

As the previous version, the ‘Galaxy Quantum 4’ offers a differentiated security experience to customers by providing a ‘quantum indicator’ on the status bar so that customers can realize that they are using a quantum security service. Its price point is comparable to previous versions, but with increased performance and security.

“Protecting one’s private data is a priority for users. The Galaxy Quantum 4 is the latest in the Quantum series, which offers strong quantum security and premium performance. As a leading player in this area, we will continue to expand the use of quantum cryptography technology to provide users with greater security and safety,” said Moon Kab-in, Vice President and Head of Smart Device Center at SKT.

“Mobile phone users don’t want to get their data stolen. The Galaxy Quantum 4 includes top performances and more quantum-secured applications than ever before, bringing applications and services to a new level of security in the mobile phone industry” said Grégoire Ribordy, CEO and co-founder of ID Quantique.

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Article on Machine Vision + AI Opportunities

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From Semiconductor Engineering https://semiengineering.com/machine-vision-plus-ai-ml-opens-huge-opportunities/

Machine Vision Plus AI/ML Adds Vast New Opportunities

Traditional technology companies and startups are racing to combine machine vision with AI/ML, enabling it to “see” far more than just pixel data from sensors, and opening up new opportunities across a wide swath of applications.

In recent years, startups have been able to raise billions of dollars as new MV ideas come to light in markets ranging from transportation and manufacturing to health care and retail. But to fully realize its potential, the technology needs to address challenges on a number of fronts, including improved performance and security, and design flexibility.

Fundamentally, a machine vision system is a combination of software and hardware that can capture and process information in the form of digital pixels. These systems can analyze an image, and take certain actions based on how it is programmed and trained. A typical vision system consists of an image sensor (camera and lens), image and vision processing components (vision algorithm) and SoCs, and the network/communication components.

Both still and video digital cameras contain image sensors. So do automotive sensors such as lidar, radar, ultrasound, which deliver an image in digital pixel form, although not with the same resolution. While most people are familiar these types of images, a machine also can “see” can heat and audio signals data, and they can analyze that data to create a multi-dimensional image.
“CMOS image sensors have seen drastic improvement over the last few years,” said Ron Lowman, strategic marketing manager at Synopsys. “Sensor bandwidth is not being optimized for human sight anymore, but rather for the value AI it can provide. For instance, MIPI CSI, the dominant vision sensor interface, is not only increasing bandwidths, but also adding AI features such as Smart Region of Interest (SROI) and higher color depth. Although these color depth increases can’t be detected by the human eye, for machine vision it can improve the value of a service dramatically.”

Machine vision is a subset of the broader computer vision. “While both disciplines rely on looking at primarily image data to deduce information, machine vision implies ‘inspection type’ applications in an industry or factory setting,” said Amol Borkar, director of product management, marketing and business development, Tensilica Vision and AI DSPs at Cadence. “Machine vision relies heavily on using cameras for sensing. However, ‘cameras’ is a loaded term because we are typically familiar with an image sensor that produces RGB images and operates in the visible light spectrum. Depending on the application, this sensor could operate in infrared, which could be short wave, medium wave, long wave IR, or thermal imaging, to name a few variants. Event cameras, which are very hyper-sensitive to motion, were recently introduced. On an assembly line, line scan cameras are a slightly different variation from typical shutter-based cameras. Most current applications in automotive, surveillance, and medical rely on one or more of these sensors, which are often combined to do some form of sensor fusion to produce a result better than a single camera or sensor.”

Benefits
Generally speaking, MV can see better than people. The MV used in manufacturing can improve productivity and quality, lowering production costs. Paired with ADAS for autonomous driving, MV can take over some driving functions. Together with AI, MV can help analyze medical images.
The benefits of using machine vision include higher reliability and consistency, along with greater precision and accuracy (depending on camera resolution). And unlike humans, machines do not get tired, provided they receive routine maintenance. Vision system data can be stored locally or in the cloud, then analyzed in real-time when needed. Additionally, MV reduces production costs by detecting and screening out defective parts, and increases inventory control efficiency with OCR and bar-code reading, resulting in lower overall manufacturing costs.

Today, machine vision usually is deployed in combination with AI, which greatly enhances the power of data analysis. In modern factories, automation equipment, including robots, is combined with machine vision and AI to increase productivity.

How AI/ML and MV interact
With AI/ML, MV can self-learn and improve after capturing digital pixel data from sensors.
“Machine vision (MV) and artificial intelligence (AI) are closely related fields, and they often interact in various ways,” said Andy Nightingale, vice president of product marketing at Arteris IP. “Machine vision involves using cameras, sensors, and other devices to capture images or additional data, which is then processed and analyzed to extract useful information. Conversely, AI involves using algorithms and statistical models to recognize patterns and make predictions based on large amounts of data.”
This also can include deep learning techniques. “Deep learning is a subset of AI that involves training complex neural networks on large datasets to recognize patterns and make predictions,” Nightingale explained. ” Machine vision systems can use deep learning algorithms to improve their ability to detect and classify objects in images or videos. Another way that machine vision and AI interact is through the use of computer vision algorithms. Computer vision is a superset of machine vision that uses algorithms and techniques to extract information from images and videos. AI algorithms can analyze this information and predict what is happening in the scene. For example, a computer vision system might use AI algorithms to analyze traffic patterns and predict when a particular intersection will likely become congested. Machine vision and AI can also interact in the context of autonomous systems, such as self-driving cars or drones. In these applications, machine vision systems are used to capture and process data from sensors. In contrast, AI algorithms interpret this data and make decisions about navigating the environment.”

AI/ML, MV in autonomous driving
AI has an increasing number of roles in modern vehicles, but the two major roles are in perception and decision making.

“Perception is the process of understanding one’s surroundings through onboard and external sensor arrays,” said David Fritz, vice president of hybrid and virtual systems at Siemens Digital Industries Software. “Decision-making first takes the understanding of the surrounding state and a goal such as moving toward the destination. Next, the AI decides the safest, most effective way to get there by controlling the onboard actuators for steering, braking, accelerating, etc. These two critical roles address very different problems. From a camera or other sensor, the AI algorithms will use raw data from the sensors to perform object detection. Once an object is detected, the perception stack will classify the object, for example, whether the object is a car, a person, or an animal. The training process is lengthy and requires many training sets presenting objects from many different angles. After training, the AI network can be loaded into the digital twin or physical vehicle. Once objects are detected and classified decisions can be made by another trained AI network to control steering, braking, and acceleration. Using a high-fidelity digital twin to validate the process virtually has been shown to result in safer, more effective vehicles faster than simply using open road testing.”

How much AI/ML is needed is a question frequently asked by developers. In the case of modern factories, MV can be used to simply detect and pick out defective parts in an assembly line or employed to assemble automobiles. Doing the latter requires advanced intelligence and a more sophisticated design to ensure timing, precision, and calculation of motion and distance in the assembly process.
“Automation using robotics and machine vision has increased productivity in modern factories,” observed Geoff Tate, CEO of Flex Logix. “Many of these applications use AI. A simple application — for instance, detecting if a label is applied correctly — does not require a great deal of intelligence. On the other hand, a sophisticated, precision robot arm performing 3D motion requires much more GPU power. In the first application, one tile of AI IP will be sufficient, while the second application may need multiple tiles. Having flexible and scalable AI IPs would make designing robotics and machine vision much easier.”

Applications
Machine vision applications are limited only by one’s imagination. MV can be used in almost any industrial and commercial segment, so long as it requires vision and processing. Here is a partial list:
 Transportation (autonomous driving, in-cabin monitoring, traffic flow analysis, moving violation and accident detection);

  •  Manufacturing and automation (productivity analysis, quality management);
  •  Surveillance (detection of motion and intrusion monitor);
  •  Health care (imaging, cancer and tumor detection, cell classification);
  •  Agriculture (farm automation, plant disease and insect detection);
  •  Retail (customer tracking, empty shelf detection, theft detection), and
  •  Insurance (accident scene analysis from images).

There are many other applications. Consider drinking water or soft drink bottling. A machine vision system can be used to inspect fill levels, which typically is done by highly efficient robots. But robots occasionally make mistakes. MV can ensure the fill level is consistent and the labels are applied correctly.

Detecting any machine parts that deviate from measurement specification limits is another job for MV. Once the MV is trained on the specification, it can detect the parts that are outside the specification limits.

MV can detect uniform shapes such as squares or circles as well as odd-shaped parts, so it can be used to identify, detect, measure, count, and (with robots), pick and place.
Finally, combining AI, MV can perform tire assembly with precision and efficiency. Nowadays, OEMs automate vehicle assembly with robots. One of the processes is to install the four wheels to a new vehicle. Using MV, a robotic arm can detect the correct distance and apply just the right amount of pressure to prevent any damage.

Types of MV
MV technologies can be divided into one-dimensional (1D), two-dimensional (2D), and three-dimensional (3D).

1D systems analyze data one line at a time, comparing variations among groups. Usually it is used in production of items such as plastics and paper on a continual basis. 2D systems, in contrast, use a camera to scan line by line to form an area or a 2D image. In some cases, the whole area is scanned and the object image can then be unwrapped for detailed inspection. 

3D systems consist of multiple cameras or laser sensors to capture the 3D view of an object. During the training process, the object or the cameras need to be moved to capture the entire product. Recent technology can produce accuracy within micrometers. 3D systems produce higher resolution but are also more expensive.

Emerging MV startups and new innovations
Tech giants, including IBM, Intel, Qualcomm, and NVIDIA, have publicly discussed investments in MV. In addition, many startups are developing new MV solutions such as Airobotics , Arcturus Networks, Deep Vision AI , Hawk-Eye Innovations, Instrumental, lending AI, kinara, Mech-Mind, Megvii, NAUTO, SenseTime, Tractable, ViSenze, Viso, and others. Some of these companies have been able to raise funding in excess of $1 billion.

In transportation, insurance companies can use MV to scan photographs and videos of scenes of accidents and disasters for financial damage analysis. Additionally, AI-based MV can power safety platforms to analyze driver behavior.

In software, computer vision platforms can be created without the knowledge of coding. Other startups have developed the idea for MV authentication software. And in the field of sports, AI, vision, and data analysis could provide coaches the ability to understand how decisions are made by players during a game. Also, one startup devised a cost reduction idea for surveillance by combining AI and MV in unmanned, aerial drone design.

Both MV and AI are changing quickly, and will continue to increase in performance, including precision and accuracy, while high GPU and ML power will come down in cost, propelling new MV applications.

Arteris’ Nightingale noted there will be further improvements in accuracy and speed. “Machine vision systems will likely become more accurate and faster. This will be achieved through advancements in hardware, such as sensors, cameras, and processors, as well as improvements in algorithms and machine learning models,” he said, pointing to an increased use of deep learning, as well. “Deep learning has been a significant driver of progress in machine vision technology in recent years, and it is likely to play an even more substantial role in the future. Deep learning algorithms can automatically learn data features and patterns, leading to better accuracy and performance. There will be an enhanced ability to process and analyze large amounts of data, as machine vision technology can process and analyze large amounts of data quickly and accurately. We may also see advancements in machine vision systems that can process significantly larger datasets, leading to more sophisticated and intelligent applications.”

Further, MV and AI are expected to integrate with other technologies to provide additional high-performance, real-time applications.


“Machine vision technology is already integrated with other technologies, such as robotics and automation,” he said. “This trend will likely continue, and we may see more machine vision applications in health care, transportation, and security. As well, there will be more real-time applications. Machine vision technology is already used for real-time applications, such as facial recognition and object tracking. In the future, we may see more applications that require real-time processing, such as self-driving cars and drones.”

MV design challenges
Still, there are challenges in training an MV system. Its accuracy and performance depend on how well the MV is trained. Inspection can encompass parameters such as orientation, variation of the surfaces, contamination, and accuracy tolerances such as diameter, thickness, and gaps. 3D systems can perform better than 1D or 2D systems when detecting cosmetic and service variation effects. In other cases, when seeing an unusual situation, human beings can draw on knowledge from a different discipline, while MV and AI may not have that ability.

“Some of today’s key challenges include data flow management and control – especially with real-time latency requirements such as those in automotive applications — while keeping bandwidth to a minimum,” said Alexander Zyazin, senior product manager in Arm‘s Automotive Line of Business. “In camera-based systems, image quality (IQ) remains critical. It requires a hardware design to support ultra-wide dynamic range and local tone mapping. But it also requires IQ tuning, where traditionally subjective evaluation by human experts was necessary, making the development process lengthy and costly. The new challenge for MV is that this expertise might not result in the best system performance, as perception engines might prefer to see images differently to humans and to one another, depending on the task.”

In general, machines can do a better job when doing mundane tasks over and over again, or when recognizing an image with more patterns than humans can typically process. “As an example, a machine may do a better job recognizing an anomaly in a medical scan than a human, simply because the doctor may make a mistake, be distracted or tired,” said Thomas Andersen, vice president for AI and machine learning at Synopsys. “When inspecting high-precision circuits, a machine can do a much better job analyzing millions of patterns and recognizing errors, a task a human could not do, simply due to the size of the problem. On the other hand, machines have not yet reached the human skill of recognizing the complex scenes that can occur while driving a car. It may seem easy for a human to recognize and anticipate certain reactions, while the machine may be better in ‘simple’ situations that a human easily could deal with, but did not due to a distraction, inattention or incapacitation – for example auto stop safety systems to avoid an imminent collision. A machine can always react faster than a human, assuming it interprets the situation correctly.”

Another challenge is making sure MV is secure. With cyberattacks increasing constantly, it will be important to ensure no production disruption or interference from threat actors.

“Security is critical to ensuring the output of MV technology isn’t compromised,” said Arm’s Zyazin. “Automotive applications are a good example of the importance of security in both hardware and software. For instance, the information processed and extracted from the machine is what dictates decisions such as braking or lane-keep assist, which can pose a risk to those inside the vehicle if done incorrectly.”

Conclusion
MV designs include a mixture of chips (processors, memories, security), IPs, modules, firmware, hardware and software. The rollout of chiplets and multi-chip packaging will allow those systems to be combined in novel ways more easily and more quickly, adding new features and functions and improving the overall efficiency and capabilities of these systems.

“Known good die (KGD) solutions can provide cost and space efficient alternatives to packaged products with limited bonding pads and wires,” said Tetsu Ho, DRAM manager at Winbond. That helps improve design efficiency, provides enhanced hardware security performance, and especially time-to-market for product launch. These die go through 100% burn-in and are tested to the same extent as discrete parts. KGD 2.0 is needed to assure end-of-line yield in 2.5D/3D assembly and 2.5D/3D multichip devices to realize improvements in PPA, which means bandwidth performance, power efficiency, and area as miniaturization, driven by the explosion of technologies such as edge-computing AI.”

This will open new options for MV in new an existing markets. It will be used to support humans in autonomous driving, help robots perform with precision and efficiency in manufacturing, and perform surveillance with unmanned drones. In addition, MV will be able to explore places that are considered dangerous for humans, and provide data input and analysis for many fields, including insurance, sports, transportation, defense, medicine, and more.

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Article on Machine Vision + AI Opportunities

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From Semiconductor Engineering https://semiengineering.com/machine-vision-plus-ai-ml-opens-huge-opportunities/

Machine Vision Plus AI/ML Adds Vast New Opportunities

Traditional technology companies and startups are racing to combine machine vision with AI/ML, enabling it to “see” far more than just pixel data from sensors, and opening up new opportunities across a wide swath of applications.

In recent years, startups have been able to raise billions of dollars as new MV ideas come to light in markets ranging from transportation and manufacturing to health care and retail. But to fully realize its potential, the technology needs to address challenges on a number of fronts, including improved performance and security, and design flexibility.

Fundamentally, a machine vision system is a combination of software and hardware that can capture and process information in the form of digital pixels. These systems can analyze an image, and take certain actions based on how it is programmed and trained. A typical vision system consists of an image sensor (camera and lens), image and vision processing components (vision algorithm) and SoCs, and the network/communication components.

Both still and video digital cameras contain image sensors. So do automotive sensors such as lidar, radar, ultrasound, which deliver an image in digital pixel form, although not with the same resolution. While most people are familiar these types of images, a machine also can “see” can heat and audio signals data, and they can analyze that data to create a multi-dimensional image.
“CMOS image sensors have seen drastic improvement over the last few years,” said Ron Lowman, strategic marketing manager at Synopsys. “Sensor bandwidth is not being optimized for human sight anymore, but rather for the value AI it can provide. For instance, MIPI CSI, the dominant vision sensor interface, is not only increasing bandwidths, but also adding AI features such as Smart Region of Interest (SROI) and higher color depth. Although these color depth increases can’t be detected by the human eye, for machine vision it can improve the value of a service dramatically.”

Machine vision is a subset of the broader computer vision. “While both disciplines rely on looking at primarily image data to deduce information, machine vision implies ‘inspection type’ applications in an industry or factory setting,” said Amol Borkar, director of product management, marketing and business development, Tensilica Vision and AI DSPs at Cadence. “Machine vision relies heavily on using cameras for sensing. However, ‘cameras’ is a loaded term because we are typically familiar with an image sensor that produces RGB images and operates in the visible light spectrum. Depending on the application, this sensor could operate in infrared, which could be short wave, medium wave, long wave IR, or thermal imaging, to name a few variants. Event cameras, which are very hyper-sensitive to motion, were recently introduced. On an assembly line, line scan cameras are a slightly different variation from typical shutter-based cameras. Most current applications in automotive, surveillance, and medical rely on one or more of these sensors, which are often combined to do some form of sensor fusion to produce a result better than a single camera or sensor.”

Benefits
Generally speaking, MV can see better than people. The MV used in manufacturing can improve productivity and quality, lowering production costs. Paired with ADAS for autonomous driving, MV can take over some driving functions. Together with AI, MV can help analyze medical images.
The benefits of using machine vision include higher reliability and consistency, along with greater precision and accuracy (depending on camera resolution). And unlike humans, machines do not get tired, provided they receive routine maintenance. Vision system data can be stored locally or in the cloud, then analyzed in real-time when needed. Additionally, MV reduces production costs by detecting and screening out defective parts, and increases inventory control efficiency with OCR and bar-code reading, resulting in lower overall manufacturing costs.

Today, machine vision usually is deployed in combination with AI, which greatly enhances the power of data analysis. In modern factories, automation equipment, including robots, is combined with machine vision and AI to increase productivity.

How AI/ML and MV interact
With AI/ML, MV can self-learn and improve after capturing digital pixel data from sensors.
“Machine vision (MV) and artificial intelligence (AI) are closely related fields, and they often interact in various ways,” said Andy Nightingale, vice president of product marketing at Arteris IP. “Machine vision involves using cameras, sensors, and other devices to capture images or additional data, which is then processed and analyzed to extract useful information. Conversely, AI involves using algorithms and statistical models to recognize patterns and make predictions based on large amounts of data.”
This also can include deep learning techniques. “Deep learning is a subset of AI that involves training complex neural networks on large datasets to recognize patterns and make predictions,” Nightingale explained. ” Machine vision systems can use deep learning algorithms to improve their ability to detect and classify objects in images or videos. Another way that machine vision and AI interact is through the use of computer vision algorithms. Computer vision is a superset of machine vision that uses algorithms and techniques to extract information from images and videos. AI algorithms can analyze this information and predict what is happening in the scene. For example, a computer vision system might use AI algorithms to analyze traffic patterns and predict when a particular intersection will likely become congested. Machine vision and AI can also interact in the context of autonomous systems, such as self-driving cars or drones. In these applications, machine vision systems are used to capture and process data from sensors. In contrast, AI algorithms interpret this data and make decisions about navigating the environment.”

AI/ML, MV in autonomous driving
AI has an increasing number of roles in modern vehicles, but the two major roles are in perception and decision making.

“Perception is the process of understanding one’s surroundings through onboard and external sensor arrays,” said David Fritz, vice president of hybrid and virtual systems at Siemens Digital Industries Software. “Decision-making first takes the understanding of the surrounding state and a goal such as moving toward the destination. Next, the AI decides the safest, most effective way to get there by controlling the onboard actuators for steering, braking, accelerating, etc. These two critical roles address very different problems. From a camera or other sensor, the AI algorithms will use raw data from the sensors to perform object detection. Once an object is detected, the perception stack will classify the object, for example, whether the object is a car, a person, or an animal. The training process is lengthy and requires many training sets presenting objects from many different angles. After training, the AI network can be loaded into the digital twin or physical vehicle. Once objects are detected and classified decisions can be made by another trained AI network to control steering, braking, and acceleration. Using a high-fidelity digital twin to validate the process virtually has been shown to result in safer, more effective vehicles faster than simply using open road testing.”

How much AI/ML is needed is a question frequently asked by developers. In the case of modern factories, MV can be used to simply detect and pick out defective parts in an assembly line or employed to assemble automobiles. Doing the latter requires advanced intelligence and a more sophisticated design to ensure timing, precision, and calculation of motion and distance in the assembly process.
“Automation using robotics and machine vision has increased productivity in modern factories,” observed Geoff Tate, CEO of Flex Logix. “Many of these applications use AI. A simple application — for instance, detecting if a label is applied correctly — does not require a great deal of intelligence. On the other hand, a sophisticated, precision robot arm performing 3D motion requires much more GPU power. In the first application, one tile of AI IP will be sufficient, while the second application may need multiple tiles. Having flexible and scalable AI IPs would make designing robotics and machine vision much easier.”

Applications
Machine vision applications are limited only by one’s imagination. MV can be used in almost any industrial and commercial segment, so long as it requires vision and processing. Here is a partial list:
 Transportation (autonomous driving, in-cabin monitoring, traffic flow analysis, moving violation and accident detection);

  •  Manufacturing and automation (productivity analysis, quality management);
  •  Surveillance (detection of motion and intrusion monitor);
  •  Health care (imaging, cancer and tumor detection, cell classification);
  •  Agriculture (farm automation, plant disease and insect detection);
  •  Retail (customer tracking, empty shelf detection, theft detection), and
  •  Insurance (accident scene analysis from images).

There are many other applications. Consider drinking water or soft drink bottling. A machine vision system can be used to inspect fill levels, which typically is done by highly efficient robots. But robots occasionally make mistakes. MV can ensure the fill level is consistent and the labels are applied correctly.

Detecting any machine parts that deviate from measurement specification limits is another job for MV. Once the MV is trained on the specification, it can detect the parts that are outside the specification limits.

MV can detect uniform shapes such as squares or circles as well as odd-shaped parts, so it can be used to identify, detect, measure, count, and (with robots), pick and place.
Finally, combining AI, MV can perform tire assembly with precision and efficiency. Nowadays, OEMs automate vehicle assembly with robots. One of the processes is to install the four wheels to a new vehicle. Using MV, a robotic arm can detect the correct distance and apply just the right amount of pressure to prevent any damage.

Types of MV
MV technologies can be divided into one-dimensional (1D), two-dimensional (2D), and three-dimensional (3D).

1D systems analyze data one line at a time, comparing variations among groups. Usually it is used in production of items such as plastics and paper on a continual basis. 2D systems, in contrast, use a camera to scan line by line to form an area or a 2D image. In some cases, the whole area is scanned and the object image can then be unwrapped for detailed inspection. 

3D systems consist of multiple cameras or laser sensors to capture the 3D view of an object. During the training process, the object or the cameras need to be moved to capture the entire product. Recent technology can produce accuracy within micrometers. 3D systems produce higher resolution but are also more expensive.

Emerging MV startups and new innovations
Tech giants, including IBM, Intel, Qualcomm, and NVIDIA, have publicly discussed investments in MV. In addition, many startups are developing new MV solutions such as Airobotics , Arcturus Networks, Deep Vision AI , Hawk-Eye Innovations, Instrumental, lending AI, kinara, Mech-Mind, Megvii, NAUTO, SenseTime, Tractable, ViSenze, Viso, and others. Some of these companies have been able to raise funding in excess of $1 billion.

In transportation, insurance companies can use MV to scan photographs and videos of scenes of accidents and disasters for financial damage analysis. Additionally, AI-based MV can power safety platforms to analyze driver behavior.

In software, computer vision platforms can be created without the knowledge of coding. Other startups have developed the idea for MV authentication software. And in the field of sports, AI, vision, and data analysis could provide coaches the ability to understand how decisions are made by players during a game. Also, one startup devised a cost reduction idea for surveillance by combining AI and MV in unmanned, aerial drone design.

Both MV and AI are changing quickly, and will continue to increase in performance, including precision and accuracy, while high GPU and ML power will come down in cost, propelling new MV applications.

Arteris’ Nightingale noted there will be further improvements in accuracy and speed. “Machine vision systems will likely become more accurate and faster. This will be achieved through advancements in hardware, such as sensors, cameras, and processors, as well as improvements in algorithms and machine learning models,” he said, pointing to an increased use of deep learning, as well. “Deep learning has been a significant driver of progress in machine vision technology in recent years, and it is likely to play an even more substantial role in the future. Deep learning algorithms can automatically learn data features and patterns, leading to better accuracy and performance. There will be an enhanced ability to process and analyze large amounts of data, as machine vision technology can process and analyze large amounts of data quickly and accurately. We may also see advancements in machine vision systems that can process significantly larger datasets, leading to more sophisticated and intelligent applications.”

Further, MV and AI are expected to integrate with other technologies to provide additional high-performance, real-time applications.


“Machine vision technology is already integrated with other technologies, such as robotics and automation,” he said. “This trend will likely continue, and we may see more machine vision applications in health care, transportation, and security. As well, there will be more real-time applications. Machine vision technology is already used for real-time applications, such as facial recognition and object tracking. In the future, we may see more applications that require real-time processing, such as self-driving cars and drones.”

MV design challenges
Still, there are challenges in training an MV system. Its accuracy and performance depend on how well the MV is trained. Inspection can encompass parameters such as orientation, variation of the surfaces, contamination, and accuracy tolerances such as diameter, thickness, and gaps. 3D systems can perform better than 1D or 2D systems when detecting cosmetic and service variation effects. In other cases, when seeing an unusual situation, human beings can draw on knowledge from a different discipline, while MV and AI may not have that ability.

“Some of today’s key challenges include data flow management and control – especially with real-time latency requirements such as those in automotive applications — while keeping bandwidth to a minimum,” said Alexander Zyazin, senior product manager in Arm‘s Automotive Line of Business. “In camera-based systems, image quality (IQ) remains critical. It requires a hardware design to support ultra-wide dynamic range and local tone mapping. But it also requires IQ tuning, where traditionally subjective evaluation by human experts was necessary, making the development process lengthy and costly. The new challenge for MV is that this expertise might not result in the best system performance, as perception engines might prefer to see images differently to humans and to one another, depending on the task.”

In general, machines can do a better job when doing mundane tasks over and over again, or when recognizing an image with more patterns than humans can typically process. “As an example, a machine may do a better job recognizing an anomaly in a medical scan than a human, simply because the doctor may make a mistake, be distracted or tired,” said Thomas Andersen, vice president for AI and machine learning at Synopsys. “When inspecting high-precision circuits, a machine can do a much better job analyzing millions of patterns and recognizing errors, a task a human could not do, simply due to the size of the problem. On the other hand, machines have not yet reached the human skill of recognizing the complex scenes that can occur while driving a car. It may seem easy for a human to recognize and anticipate certain reactions, while the machine may be better in ‘simple’ situations that a human easily could deal with, but did not due to a distraction, inattention or incapacitation – for example auto stop safety systems to avoid an imminent collision. A machine can always react faster than a human, assuming it interprets the situation correctly.”

Another challenge is making sure MV is secure. With cyberattacks increasing constantly, it will be important to ensure no production disruption or interference from threat actors.

“Security is critical to ensuring the output of MV technology isn’t compromised,” said Arm’s Zyazin. “Automotive applications are a good example of the importance of security in both hardware and software. For instance, the information processed and extracted from the machine is what dictates decisions such as braking or lane-keep assist, which can pose a risk to those inside the vehicle if done incorrectly.”

Conclusion
MV designs include a mixture of chips (processors, memories, security), IPs, modules, firmware, hardware and software. The rollout of chiplets and multi-chip packaging will allow those systems to be combined in novel ways more easily and more quickly, adding new features and functions and improving the overall efficiency and capabilities of these systems.

“Known good die (KGD) solutions can provide cost and space efficient alternatives to packaged products with limited bonding pads and wires,” said Tetsu Ho, DRAM manager at Winbond. That helps improve design efficiency, provides enhanced hardware security performance, and especially time-to-market for product launch. These die go through 100% burn-in and are tested to the same extent as discrete parts. KGD 2.0 is needed to assure end-of-line yield in 2.5D/3D assembly and 2.5D/3D multichip devices to realize improvements in PPA, which means bandwidth performance, power efficiency, and area as miniaturization, driven by the explosion of technologies such as edge-computing AI.”

This will open new options for MV in new an existing markets. It will be used to support humans in autonomous driving, help robots perform with precision and efficiency in manufacturing, and perform surveillance with unmanned drones. In addition, MV will be able to explore places that are considered dangerous for humans, and provide data input and analysis for many fields, including insurance, sports, transportation, defense, medicine, and more.

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GPixel (Changguang Chenxin) files for an IPO

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Original article (in Chinese): https://finance.eastmoney.com/a/202307032768592891.html

English translation using Google Translate:

In this IPO, Changguang Chenxin intends to raise 1.557 billion yuan to invest in machine visionSerialized CMOS image sensor in the fieldR&D and industrialization projects for scientific instruments, R&D and industrialization projects for serialized CMOS image sensors in the field of scientific instruments, R&D and industrialization projects for serialized CMOS image sensors in the field of professional imaging , serialized CMOS image sensors for medical imaging Sensor research and development and industrialization projects, high-end CMOS image sensor research and development center construction projects and supplementary working capital.

According to the prospectus, Changguang Chenxin focuses on the research and development, design, testing and sales of high-performance CMOS image sensors, as well as related customized services.

The company includes customers D, Teledyne, Vieworks, Adimec and other overseas manufacturers, Hikvision Robotics, Huarui Technology, Xintu Optoelectronics, Eco OptoelectronicsAnd other domestic manufacturers, as well as scientific research institutes such as the Changchun Institute of Optics and Mechanics of the Chinese Academy of Sciences, the Shanghai Institute of Technology of the Chinese Academy of Sciences, the Xi’an Institute of Optics and Mechanics of the Chinese Academy of Sciences, and the National Astronomical Observatory of the Chinese Academy of Sciences.

In terms of performance , from 2020 to 2022, the company's operating income will be 198 million yuan, 411 million yuan, and 604 million yuan; the net profit attributable to the parent during the same period will be 59.3872 million yuan, -33.1685 million yuan, and -83.1481 million yuan.

It is worth noting that Changguang Chenxin has overseas business risks. In the context of global cooperation in the integrated circuit supply chain, overseas procurement and overseas sales are an important part of the company's business activities. During the reporting period, the company's overseas procurement accounted for more than 80%, and overseas sales accounted for more than 30%.

In addition, the company also has a high proportion of inventory and the risk of falling prices. At the end of each reporting period, the book values ​​of inventories were 80.1680 million yuan, 224 million yuan and 304 million yuan respectively, accounting for 23.59%, 40.94% and 29.05% of the total assets respectively, maintaining a relatively high level overall.

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Report predicts large growth in CCD image sensor market

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[(July 5, 2023): There is a strong suspicion that this is a machine generated article and so its veracity is questionable.]

Experts Predict Stunning Growth for Global Image Sensor Market, Reaching USD 55.8 Billion by 2032




market.us recently published a research report on, the "Global Image Sensor Market By Technology, By Type, By Application, By Region and Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends, and Forecast 2023-2032". According to the report, the Global Image Sensors Market size was valued at USD 26.1 billion in 2022 and is projected to reach USD 55.8 billion by 2032, growing at a CAGR of 8.1% from 2023-2032. 

Rising security spending across public places worldwide combined with technology designed to bolster anti-terror equipment that also prevents security breaches are expected to drive this sector of industry forward.

The global image sensors market is poised for significant growth as technological advancements and expanding applications continue to fuel demand. With an increasing need for high-quality imaging solutions across industries such as automotive, consumer electronics, healthcare, and security, the image sensors market is expected to reach new milestones in the coming years.

Key Takeaways:

  • In 2022, the 2D segment emerged as the top revenue generator in the Global Image Sensors Market.
  • The Automotive Sector segment is dominating the market in terms of application and is expected to grow significantly from 2023 to 2032.
  • The Asia-Pacific Region held the largest revenue share of 41% in 2022, establishing its dominance in the market.
  • Europe secured the second position in revenue share in 2022 and is projected to experience substantial growth from 2023 to 2032.

Sensors have quickly become an indispensable element of modern vehicles, Advanced Driver Assistance Systems (ADAS), medical devices and automated production technologies. Sensors have also become more affordable, robust, precise, specific, frequent smarter and communicative. Their benefits will make them attractive options for deployment in future smart infrastructure systems; due to superior image quality and sensitivity of Charge-Coupled Device (CCD) technology this was previously the dominant solution used.

Since 2004, due to technological developments, CMOS image sensors have outshone CCD image sensors in terms of volume of shipment since 2004. CCD sensors utilize high voltage analog circuitry while CMOS uses less power and has smaller dimensions; CCD remains more popular due to increased revenue generated for growth in image sensors market growth.

Firstly, the continuous evolution of camera technologies and the proliferation of smartphones have revolutionized the consumer electronics sector. The demand for high-resolution imaging capabilities, augmented reality (AR) applications, and enhanced camera features in smartphones has been a major driving force behind the growth of the image sensors market.

Additionally, the automotive industry has witnessed a rapid integration of advanced driver-assistance systems (ADAS) and autonomous driving technologies. Image sensors play a crucial role in enabling these systems by providing accurate and real-time information for object detection, lane departure warnings, and adaptive cruise control. The increasing adoption of electric vehicles and the rising trend of in-car entertainment systems further contribute to the demand for image sensors in the automotive sector.

Furthermore, the healthcare industry has embraced the use of image sensors in medical devices such as endoscopes, surgical cameras, and X-ray machines. These sensors facilitate precise imaging, aiding medical professionals in diagnostics, minimally invasive surgeries, and patient monitoring. The growing emphasis on telemedicine and remote patient monitoring is also expected to drive the demand for image sensors in the healthcare sector.

In the realm of security and surveillance, image sensors have become indispensable components in surveillance cameras, facial recognition systems, and biometric scanners. The need for enhanced security measures across residential, commercial, and public sectors, coupled with the increasing adoption of smart city initiatives, is propelling the image sensors market forward.

To cater to the evolving market demands, leading companies in the image sensors industry are heavily investing in research and development activities to develop advanced sensor technologies. Innovations such as backside-illuminated (BSI) sensors, stacked CMOS sensors, and time-of-flight (ToF) sensors are gaining prominence, enabling improved image quality, higher resolutions, and faster data processing.

Top Trends in Global Image Sensors Market

Many vendors are now adopting CMOS image sensor technology, signalling its rapid advancement into low-cost camera designs. Although compared with CCD sensors for image quality at similar price points, CMOS sensors have grown increasingly popular due to their on-chip functionality in low-cost consumer markets like consumer electronics, automotive security, surveillance and others.

Consumer electronics has seen an explosion of demand for smartphones equipped with both rear- and front-facing cameras, driven largely by autonomous vehicles equipped with Advanced Driver Assistance Systems (ADAS) that enhance driver safety. Furthermore, as CMOS images can be utilized as security applications even under low light or dim light lighting conditions - their usage has skyrocketed as security applications become ever more critical in business operations.

Sony Corporation of Japan holds an unparalleled position in the CMOS sensor market and was the pioneer for commercializing automotive cameras equipped with their sensors. To increase production capacity of stacked image sensors for automotive cameras, Sony invested USD 895 Million (105 Billion JPY).

SmartSens is an industry leader when it comes to CMOS image sensors. Recently they unveiled the SC550XS ultra-high resolution 50MP image sensor featuring 1.0 micrometer pixels - using SmartSens' proprietary technologies including SmartClarity-2, SFCPixel and PixGainHDR technologies to produce superior picture quality while using 22nm HKMG Stack process for outstanding imaging performance.

Metalenz, an international start-up that develops meta-optic lens technology, recently unveiled an innovation that embeds polarization sensing capabilities directly into mobile and consumer devices - improving healthcare management features and ultimately revolutionising healthcare management features.

Competitive Landscape

Sony Corporation
Samsung Electronics Co. Ltd
ON Semiconductor Corporation 
and STMicroelectronics Co. Ltd
They are leading the imaging sensor market share.

Image sensor manufacturers are continuously making innovations to their products that offer more robust, accurate sensing at lower costs - Time-Of-Fight technology (TOF) has emerged as a game-changer here.

Recent Trends of Image Sensor Market

Realme has recently announced the availability of their 9 Pro Series smartphones equipped with Sony's IMX766 image sensors in Europe in February 2022. Each sensor measures 1/1.56", offering large pixels for photography with optical image stabilisation (OIS), along with an aperture size of 0.88 which facilitates taking clear photos even at long range distance.

Sony Interactive Entertainment LLC (SIE), purchased Bungie Inc in January 2022 as an independent videogame developer that had long collaborated with them - they had helped produce iconic titles like Halo and Destiny with them! SIE now gained access to Bungie's technical knowledge as well as world-class live games; increasing SIE's potential reach of billions of gamers around the globe.

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Random number generation from image sensor noise

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A recent preprint titled "Practical Entropy Accumulation for Random Number Generators with Image Sensor-Based Quantum Noise Sources" by Choi et al. is available here:  https://www.preprints.org/manuscript/202306.1169/v1

 Abstract: The efficient generation of high-quality random numbers is essential in the operation of cryptographic modules. The quality of a random number generator is evaluated by the min-entropy of its entropy source. Typical method used to achieve high min-entropy of the output sequence is an entropy accumulation based on a hash function. This is grounded in the famous Leftover Hash Lemma which guarantees a lower bound on the min-entropy of the output sequence. However, the hash function based entropy accumulation has slow speed in general. For a practical perspective we need a new efficient entropy accumulation with the theoretical background for the min-entropy of the output sequence. In this work, we obtain the theoretical bound for the min-entropy of the output random sequence through the very efficient entropy accumulation using only bitwise XOR operations, where the input sequences from the entropy source are independent. Moreover we examine our theoretical results by applying to the quantum random number generator that uses dark noise arising from image sensor pixels as its entropy source.





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Image Sensors World Blog Feedback Survey 2023 is open until July 7, 2023

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We would like to know more about our readership and get feedback on how this blog can better serve you.

Please fill the form below (or use this Microsoft Form link: https://forms.office.com/r/n2Z4vvYYBN)
 
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Please respond by midnight your local time on July 7, 2023.

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Coherent – TriEye collaboration on SWIR imaging

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PRESS RELEASE

COHERENT AND TRIEYE DEMONSTRATE LASER-ILLUMINATED SHORTWAVE INFRARED IMAGING SYSTEM FOR AUTOMOTIVE AND ROBOTIC APPLICATIONS

PITTSBURGH and TEL AVIV, Israel, June 26, 2023 (GLOBE NEWSWIRE) – Coherent Corp. (NYSE: COHR), a leader in semiconductor lasers, and TriEye Ltd., a pioneer in mass-market shortwave infrared (SWIR) sensing technology, today announced their successful joint demonstration of a laser-illuminated SWIR imaging system for automotive and robotic applications. 

The growing number of use cases for SWIR imaging, which expands vision in automotive and robotics beyond the visible spectrum, is driving demand for low-cost mass-market SWIR cameras. The companies leveraged TriEye’s spectrum enhanced detection and ranging (SEDAR) product platform and Coherent’s SWIR semiconductor laser to jointly design a laser-illuminated SWIR imaging system, the first of its kind that is able to reach lower cost points while achieving very high performance over a wide range of environmental conditions. The combination of these attributes is expected to enable wide deployment in applications such as front and rear cameras in cars as well as vision systems in industrial and autonomous robots. 

“This new solution combines best-in-class SWIR imaging and laser illumination technologies that will enable next-generation cameras to provide images through rain or fog, and in any lighting condition, from broad daylight to total darkness at night,” said Dr. Sanjai Parthasarathi, Chief Marketing Officer at Coherent Corp. “Both technologies are produced leveraging high-volume manufacturing platforms that will enable them to achieve the economies of scale required to penetrate markets in automotive and robotics.”

“We are happy to collaborate with a global leader in semiconductor lasers and to establish an ecosystem that the automotive and industrial robotics industries can rely on to build next-generation solutions,” said Avi Bakal, CEO and co-founder of TriEye. “This is the next step in the evolution of our technology innovation, which will enable mass-market applications. Our collaboration will allow us to continue revolutionizing sensing capabilities and machine vision by allowing the incorporation of SWIR technology into a greater number of emerging applications.”

The SEDAR product platform integrates TriEye’s next-generation CMOS-based SWIR sensor and illumination source with Coherent’s 1375 nm edge-emitting laser on surface-mount technology (SMT). The laser-illuminated imaging systems will enable the next generation of automotive cameras that can provide images through inclement weather. They will also enable autonomous robots to operate around the clock in any lighting conditions and move seamlessly between indoor and outdoor environments.

Coherent and TriEye will exhibit the imaging system at Laser World of Photonics in Munich, Germany, June 27-30, at Coherent’s stand B3.321. 





About TriEye

TriEye is the pioneer of the world’s first CMOS-based Shortwave Infrared (SWIR) image-sensing solutions. Based on advanced academic research, TriEye’s breakthrough technology enables HD SWIR imaging and accurate deterministic 3D sensing in all weather and ambient lighting conditions. The company’s semiconductor and photonics technology enabled the development of the SEDAR (Spectrum Enhanced Detection And Ranging) platform, which allows perception systems to operate and deliver reliable image data and actionable information while reducing expenditure up to 100x the existing industry rates. For more information, visit www.TriEye.tech.


About Coherent

Coherent empowers market innovators to define the future through breakthrough technologies, from materials to systems. We deliver innovations that resonate with our customers in diversified applications for the industrial, communications, electronics, and instrumentation markets. Headquartered in Saxonburg, Pennsylvania, Coherent has research and development, manufacturing, sales, service, and distribution facilities worldwide. For more information, please visit us at coherent.com. 


Contacts

TriEye Ltd.
Nitzan Yosef Presburger
Head of Marketing
news@trieye.tech

Coherent Corp.
Mark Lourie
Vice President, Corporate Communications
corporate.communications@coherent.com 

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RADOPT 2023: workshop on radiation effects on optoelectronics and photonics technologies

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