Stewell Launched The New 2.3MP Car Regulations Sensor+ISP Two -In -One Whole Bureau Shutter Image Sensor

Smartway (Shanghai) Electronic Technology Co., Ltd. (stock abbreviation: Smartway, stock code: 688213) has launched a new product of 2.3MP Sensor+ISP two-in-one car-grade image sensor - SC233AT. The back-illuminated global shutter image sensor integrates high sensitivity, high dynamic range, and excellent on-chip image processing capabilities, enabling in-cabin applications such as driver monitoring systems (DMS) and passenger monitoring systems (OMS) with excellent image quality. imaging applications.

With the acceleration of automobile intelligence, on-board cameras have begun to be widely used in DMS/OMS and other cabin positions, and the autonomous driving industry has entered a period of high-quality development, which has also led to a substantial increase in the market size of automotive CMOS image sensors. According to Yole's forecast, the global automotive CIS market will reach USD 3.244 billion in 2027, of which the CIS market for in-cabin imaging systems will grow from USD 209 million in 2021 to USD 571 million in 2027, showing a very broad space for development.

The new product is Smartway's first automotive image sensor equipped with the new LightBox IR technology, which can achieve clearer near-infrared imaging and provide accurate image information for DMS/OMS systems in dark light environments. SC233AT adopts SmartGS-2 global shutter technology, relying on advanced SFCPixel and single-frame inflection point HDR technology, it can provide high-quality images with clear details even under low light or strong changes in light conditions. As a new masterpiece of Smartway Automotive Sensor (AT) Series series, SC233AT complies with AEC-Q100 Grade 2 and functional safety ISO 26262 ASIL B level requirements, and boosts the development of smart cockpit applications with high performance and high safety reliability.

New LightBox IR technology blessing, improve near-infrared sensitivity

As the public pays more and more attention to driving safety, in order to further improve the safety of drivers and passengers in the rear seat, DMS and OMS systems have emerged and the assembly rate has continued to increase.

Near-infrared sensitivity is a key parameter to ensure the image sensitivity and clarity of the DMS/OMS system. Smartway's advanced LightBox IR? technology can effectively improve the near-infrared sensitivity of the image sensor, and through the introduction of improved deep trench isolation (DTI), better pixel isolation and night vision performance can be achieved, and the effects of different pixels can be further reduced. The direct crosstalk (Crosstalk) can obtain clear images of the driver and the cabin in the low-light environment of the car, ensuring the accuracy of artificial intelligence training and algorithm recognition.

In addition, SC233AT is based on SmartGS-2 global shutter technology of Smartway, and relies on Smartway’s unique SFCPixel patented technology, which can achieve high recognition accuracy and no delay imaging. The sensitivity is as high as 9650mV/lux*s, and it can capture faces in real time The state of the head and eyes, thereby greatly improving the monitoring effect of the DMS/OMS system.

On the other hand, relying on Smartway's innovative ultra-low noise peripheral read circuit technology, SC233AT brings lower read noise and pixel response non-uniformity (PRNU), down to 2.85e- and 0.66% respectively, Make the imaging picture more clean and clear.

Sensor+ISP two-in-one, creating excellent image quality

The SC233AT image sensor with integrated ISP function can effectively improve image quality and enhance details. Equipped with an advanced on-chip ISP algorithm, it uses advanced functions such as automatic gain control (AGC), automatic exposure control (AEC), noise reduction, edge enhancement, etc. to remove noise, highlight important details, and significantly improve image quality to better meet DMS/OMS The smart cockpit system requires high-precision images.

In addition, when the DMS/OMS system is running, it will encounter many special scenes, such as the strong light overexposure that is easy to appear when the light is forward, and the dark picture that is easy to be caused by the backlight. The advanced ISP algorithm of Smartway can effectively brighten the dark light, Suppress strong light, so that clear images can still be taken in scenes with drastic changes in light, and further improve the ability of the smart cockpit system to cope with complex traffic scenes.

Single-frame inflection point HDR technology under the global shutter architecture to achieve high dynamic range

Even if the camera is in the car, the image quality will be disturbed by the external light. Extreme lighting conditions also pose a great challenge to DMS/OMS imaging systems. Therefore, CMOS image sensors equipped with HDR functions have received widespread attention.

Different from the traditional HDR synthesis method, SC233AT adopts a unique single-frame inflection point HDR technology. Through a special pixel timing control method, it expands the dynamic range and realizes nonlinear light response. Dynamic range imaging (dynamic range up to 91.5dB). SC233AT can present rich details of bright and dark parts in scenes with large contrast between light and dark, helping the DMS/OMS system to capture changes in the face, eye state or action characteristics of the occupants in the car around the clock, and promote higher-level automatic driving Function.

Mr. Shao Ke, vice president of Smartway Automotive Chip Department, said: "With the rapid increase in the deployment rate of DMS/OMS systems, the automotive intelligent industry has gradually entered a critical period of moving towards higher-level autonomous driving. Smartway 2.3MP car specifications Based on the needs of customers, the new product SC233AT, a two-in-one ISP image sensor, combines high dynamic range, excellent near-infrared imaging technology and back-illuminated global shutter technology to provide in-cabin vision for vehicle customers with superior performance and high-quality imaging capabilities. Solution. In addition, in terms of vehicle safety, SC233AT complies with AEC-Q100 Grade 2 and ISO 26262 ASIL B functional safety level requirements, and can be used in smart cockpit monitoring systems such as DMS/OMS to ensure driving with safe and reliable car-level quality Safety, to help advance higher-level autonomous driving."

Smartway has released 10 automotive-grade image sensor products, covering the application requirements of automotive perception and image segmentation with a resolution of 1MP~8MP. In the future, Smartway will continue to focus on the three major application scenarios of in-vehicle imaging, perception and cabin, further enrich the matrix of AT Series series products, and rely on its own core technology and product performance advantages to promote The development of automobile intelligence and the penetration and popularization of intelligent driving technology.

SC233AT is available in black and white and RGB-IR versions, samples are currently being accepted, and mass production is expected to begin in Q2 2023. For more information about SC233AT, please contact Smartway sales staff.

About SmartSens Technology

SmartSens Technology (stock abbreviation: SmartSens, stock code: 688213) is a high-tech enterprise engaged in R&D, design and sales of CMOS image sensor chip products, headquartered in Shanghai, China. There are R&D centers in many cities and countries.

Since its establishment, Smartway has always focused on the innovation and research and development of high-end imaging technology, and has been recognized and favored by many customers by virtue of its own performance advantages. As a CMOS image sensor product company committed to providing multi-scenario applications and full performance coverage, the company's products have covered the full performance requirements of multi-scenario applications such as security monitoring, machine vision, smart vehicle electronics, and smartphones.

Smartway will uphold the vision of "Let people see and understand the world better with cutting-edge intelligent imaging technology", take customer demand as the core driving force, continue to promote the upgrading of cutting-edge imaging technology, expand product application fields, and work together with partners Boost the in-depth development of future intelligent imaging technology.