On December 26, 2024, Shanghai, China - SITWEI (Shanghai) Electronic Technology Co., Ltd. (stock abbreviation: SITWEI, stock code: 688213) recently announced the launch of its new high-performance intelligent transportation (ITS) application global shutter image sensor products SC935HGS (9MP) and SC635HGS (6MP). Two new products are based on the advanced SmartGSTM-2 Plus technology from SITWEI, equipped with Lightbox IR? Near infrared enhancement technology supports multiple HDR modes, with multiple performance advantages such as high dynamic range, high frame rate, low noise, and no distortion. For the practical scenarios of intelligent transportation applications, SC935HGS and SC635HGS have comprehensively optimized multiple key capabilities such as high temperature performance, frame rate, and shutter efficiency, which can effectively solve multiple pain points in road monitoring and fully meet the fast, clear, accurate, and stable image capture requirements of intelligent transportation systems under various complex conditions.

SmartGSTM-2 Plus technology, distortion free and fast capture

When capturing high-speed moving objects, the Rolling Shutter image sensor is prone to motion trailing and deformation issues due to its line by line exposure principle, resulting in distorted information acquisition. The SC935HGS and SC635HGS equipped with SmartGSTM-2 Plus technology are used as backlit Global Shutter image sensors, which achieve simultaneous exposure of all pixels during shooting and effectively suppress issues such as motion distortion and trailing blur. Therefore, in ITS high-speed traffic shooting scenarios, SC935HGS and SC635HGS can help cameras achieve clear, accurate, and motion distortion free rapid capture, improving the accuracy of vehicle information collection.

High sensitivity, high dynamic range, high-quality image capture

The quality of image acquisition directly affects the discrimination efficiency and accuracy of intelligent transportation systems. As iterative upgrade products for intelligent transportation applications, SC935HGS and SC635HGS have significantly improved key performance such as sensitivity, dynamic range, and noise control, providing ITS systems with new high-definition images with higher image quality and better night vision effects.

High sensitivity

Thanks to the advanced SmartGSTM-2 Plus technology from Skyway, the peak quantum efficiency of SC935HGS and SC635HGS in the visible light band at 520nm is as high as 78%, which is significantly improved compared to previous generation products and can fully guarantee imaging clarity under low light conditions. In addition, the SC935HGS and SC635HGS are innovatively equipped with the patented Lightbox IR from Skyworth? Near infrared enhancement technology, with better sensitivity in the near-infrared band than industry competitors of the same specifications, can be applied to overseas near-infrared supplementary light intelligent transportation system equipment to enhance regional compatibility of terminal products.

High dynamic range

Based on PixGain technology, SC935HGS and SC635HGS achieve all-weather high-definition effects without fear of day and night light changes. In low light environments at night, high gain can be used to reduce readout noise and make image details clearer; In strong daylight environments, low gain conversion is used to prevent overexposure of the image, resulting in delicate and bright images. Meanwhile, SC935HGS and SC635HGS support Zone HDR and ColGain HDR? Two single frame HDR modes can effectively improve dynamic range, reduce the imaging impact of day and night light changes on ITS cameras, and minimize the occurrence of local overexposure or loss of details in dark areas.

low noise

SC935HGS and SC635HGS adopt advanced Stack MIM capacitor technology and innovative Denoise algorithm, significantly reducing image noise from the perspective of circuit technology and algorithm. The reading noise of SC935HGS and SC635HGS has been reduced by about 57% compared to the previous generation products, and the fixed noise has been reduced by about 42%. The excellent low noise effect can ensure the detail texture and clarity of ITS camera nighttime imaging images, and improve the accuracy of nighttime information collection.

Multiple performance optimizations to create a stable and reliable ITS visual system

In the practical application of ITS road monitoring cameras, multiple challenges such as outdoor high temperature weather and high-speed vehicle shooting need to be faced. In response to this, SC935HGS and SC635HGS have been optimized for key pain points such as high temperature performance, frame rate, and shutter efficiency, which can significantly improve image capture stability and create accurate and reliable ITS visual systems.

High temperature performance optimization

In high temperature weather, ITS outdoor cameras used for road monitoring and other scenarios need to undergo all-weather sun exposure testing. SC935HGS and SC635HGS have significantly optimized their high-temperature imaging performance through advanced SmartGSTM-2 Plus technology and manufacturing processes. Taking SC935HGS as an example, under high temperature conditions of 80 ℃, Shading is reduced by about 83% compared to the previous generation, which can effectively solve the problem of camera imaging edge turning purple under high temperature conditions.

Higher frame rate

Based on the application scenario characteristics of ITS high-speed vehicle shooting, SC935HGS and SC635HGS have been optimized for frame rate, which can support up to 65fps ultra-high frame rate, ensuring the smoothness of high-speed traffic video shooting and providing customers with more frame rate redundancy to enhance the flexibility of practical applications.

Shutter efficiency optimization

To address the issue of moving residual images caused by high brightness high-speed moving objects such as white vehicles and license plates, the SC935HGS and SC635HGS have optimized their shutter efficiency, achieving a more than 9-fold improvement compared to their predecessors. The ultra-high shutter efficiency (PLS>98000) enables the SC935HGS and SC635HGS to effectively solve the problem of unclear shooting of high brightness high-speed moving vehicles, providing accurate and clear high-quality images for ITS cameras.

Better visibility, lane monitoring without blind spots

The SC935HGS adopts a resolution ratio of 3840Hx2336V, which has a higher vertical resolution than similar competitors in the market. It can provide better field of view for ITS cameras in the vertical direction, reduce the occurrence of blind spots in the vertical shooting of large vehicles with high body height, and make the ITS lane monitoring field clearer, more complete, and free of blind spots. SC635HGS adopts a resolution ratio of 2880Hx2160V, which can be flexibly applied to ITS monitoring on small road sections such as dual carriageways to meet different application needs.

At present, SC935HGS and SC635HGS have accepted samples and are expected to achieve mass production in Q2 2025. To learn more about SC935HGS and SC635HGS, please contact the sales personnel of SITWEI.

About SmartSens Technology

SmartSens Technology (stock abbreviation: SmartSens, stock code: 688213) is a high-tech enterprise engaged in the research and development, design, and sales of CMOS image sensor chip products. Its headquarters is located in Shanghai, China, and it has research and development centers in multiple cities and countries.

Since its establishment, SITWEI has always focused on innovation and research and development of high-end imaging technology, and has gained recognition and favor from many customers with its performance advantages. As a CMOS image sensor product company committed to providing multi scenario applications and full performance coverage, our company's products have covered the full performance requirements of multi scenario application fields such as security monitoring, machine vision, intelligent vehicle electronics, and smartphones.

SITWEI will uphold the vision of "using cutting-edge intelligent imaging technology to enable people to better see and understand the world", with customer needs as the core driving force, continuously promote the upgrading of cutting-edge imaging technology, expand product application areas, and work with partners to promote the deepening development of future intelligent imaging technology.

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Name: John Chen

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