基于FPGA的红外焦平面阵列图像采集及处理系统设计

Design of IRFPA Image Acquisition and Disposition System Based on FPGA

介绍了一种基于FPGA的图像采集及处理系统实现方案,采用Altera公司的EP2C35系列现场可编程门阵列FPGA作为控制核心,完成了图像采集、存储、预处理及下位机实时视频合成、显示等功能;简介了各功能模块的实现方案,给出了软硬件实现要点及实验结果,系统末端Camera Link协议接口配合PCI图像采集卡将采集处理后的信号传送至上位机;在上位机端的Sapera CamExpert用户界面中以grab连续采集或snap单帧采集模式即可捕获下位机端送来的图像信号,从而实现了高速实时图像采集及处理。

The implementation of a image acquisition and disposition system which is based on FPGA is introduced. The method uses the field programmable gate arrays （FPGA） of Altera＇ s EP2C35 family chip as the control unit. The system realizes the image acquisition, storage, preproeessing, the real-time video composition and display. It gives brief introduction about every sub modules, gives the realization and the experiment results of the hardware and software. With the PCI image grabbing card, it can transmit the image data which has been acquired and disposed to the PC. At the same time, in Sapera CamExpert pc user interfac, It can use grab consecutive collection mode and snap signal frame collection mode to capture the picture, so the whole system can achieve the high-speed and real-time image acquisition and processing.