基于AM41V4传感器的高清高速CMOS相机系统设计

摘要

为满足国防、科研及工业中快速变化场景拍摄时,更高帧频、更大分辨率的要求,研发了一款高清高速相机。该文介绍了高分辨率高帧频CMOS图像传感器芯片AM41 V4的功能与特点,并基于该芯片设计了一套高分辨率高帧频的相机系统,该系统使用FPGA作为整个系统的时序控制核心,以DDR动态存储器作为成像暂存器,可以依据试验场合的具体拍摄要求实现灵活多变的工作模式。相机系统在图像分辨率为1920×1080时帧频可达1000 fps,并具有实时监视功能。该系统具有拍摄速度快、成像清晰、高性能、灵活性好等优点,适用于高速运动目标的快速捕获与拍摄记录。%In order to satisfy the requests of the high frame rate and high resolution of fast moving scene in national defense,research and industry,a camera with high-speed and high resolution was de-veloped.The functions and characteristics of CMOS image sensor AM41V4 which can cover the re-quests were introduced,a camera system based on the image sensor was designed.The FPGA was used as the core to control the system timing and DDR solid storage was embedded as the imaging memory in the camera system.Consequently,a flexible working pattern according to specific require-ments of the test shoot occasions was realized.The frame rate of the system is 1 000 frames per second,when the resolution of the image is 1 920 pixel×1 080 pixel.Besides,the camera system rea-ches a real-time monitoring function.The system has the advantages of high shooting speed,clear image,high performance and flexibility.It has great value for fast capture and shooting record of high-speed moving targets.