基于CameraLink的高速图像采集处理系统设计

Design of high-speed image acquisition and processing system based on cameraLink

针对高帧频相机输出的图像数据量大的特点,设计并实现了一种基于CameraLink接口的高速实时图像采集处理系统。该系统采用FPGA芯片EP3C55F484完成图像的采集和预处理,高性能的DSP芯片TMS320DM642完成复杂的图像处理运算。介绍了系统的设计思路、硬件结构和工作流程,并描述了系统各个功能模块的设计方法。实验结果表明,系统可实时完成500帧/s的图像数据采集和处理任务。同时,该系统实现了从CameraLink信号到SDI信号视频接口转换功能。

Aiming at characteristic of mass data of image out from high-frame camera,a high-speed real-time image acquisition and processing system based on CameraLink interface was designed and implemented.The FPGA chipset EP3CF484 accomplished image acquisition and image pro-processing,and the high performance DSP chipset TMS320DM642 accomplished more complex image processing.The design idea,hardware architecture,and functionality of the system were introduced,and then the design method for each functional module of the system was described.The experimental results demonstrate that the system can reach 500 frames per second for real-time image acquisition and processing.At the same time,the system can complete the video interface conversion from CameraLink signal to SDI(Serial Digital Interface) signal.