采用新型彩色滤光片阵列优化汽车图像传感器的图像处理.pdf

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1、Optimized Image Processing for Automotive Image Sensors with Novel Color Filter ArraysYoung-Jun YooVPNextchip Co.,Ltd.Todays contents2 2023 Nextchip Co.,Ltd.Nextchip:Vision ProfessionalChallenge for Both Human&Machine VisionNextchips ISP TopologyTest Results of Nextchips Image Processing for Each CF

2、ASophisticated methodology for design and tuning3 2023 Nextchip Co.,Ltd.Nextchip:Vision ProfessionalNextchip overviewWorld-class ISP(ASIC/IP/Tuning)Automotive reliability 420million shipping units 51+MP car modelsListed on the KOSDAQMarket Proven Technology Went public in July 2022Advanced ADAS tech

3、nologyCustomer support Know-how in tuning against various customers criteria AEC-Q100 Gr.2/CMMI Lv.-3/ISO26262/A-Spice process Developing image signal processing tech.for 26 years Open architecture with various imagers Edge processor/w hard-wired ML algorithms ADAS SoCs with CNN capability Tuning ca

4、pability human&machine vision 2023 Nextchip Co.,Ltd.45Challenge for bothHuman&Machine Vision 2023 Nextchip Co.,Ltd.6Key factor of machine visionHigh sensitivity is the key factor of machine vision for achieving a quality video image with low image noise even in poor lighting conditions.The higher th

5、e signal-to-noise ratio,the better the object can be detected.Sensitivitiy is more important than color in machine vision.How to get higher sensitivity7Diverse bayer pattern with pixelsRear Blind Spot GuidanceRear CameraFully Automatic Parking FunctionMOD Camera MotionObject DetectionLDWS(Lane Depar

6、ture Warning System)Night Vision FunctionStereo/Lidar Camera SystemFront CameraAdaptive CameraDrowsy Driving MonitoringRGBGRGBIRHigh sensitivity;Moderate colorGood sensitivity;ModeratecolorRYCyYRCCBHigh sensitivity;Less colordefaultSpecial CFAs have popped in a variety of scenarios depending on how