Super−Exposure Pixels Mitigate LED Flicker in the Most Demanding Automotive Environments
Automotive cameras with new generation of image sensors enable the latest advancements in autonomous and assisted driving systems. Advanced driver assistance systems use the images captured by these cameras to identify objects around the vehicle and calculate distance (with stereo cameras), which can be used in features like automatic braking, highway cruise control, lane departure, or parking assist. However, the light−emitting diodes (LEDs) used in most modern automotive lights and traffic signs can cause problems for some image sensors. onsemi utilizes image sensors with pixel overflow approach, also known as super exposure, that uses very large in−pixel overflow memory to extend dynamic range many times and achieve 120 dB LED flicker free operation. With the advanced super exposure pixels, they can address the challenges of ADAS requirements and flickering LEDs
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