基于FPGA的模拟视频采集卡设计

Design of Analog Video Capture System Based on FPGA

模拟视频信号采集是视频处理系统的重要部分,为后续数字视频信号的处理打下基础。为了提高视频采集和处理的实时性,设计一种基于FPGA芯片的视频采集卡。该采集卡以Cyclone III系列FPGA芯片为核心,通过视频解码芯片TVP5150将模拟视频信号转换为符合BT.656标准的数字信号,输入FPGA进行处理。实验表明该方案的有效性,能为同类产品的设计提供参考。

Analog video signal acquisition is an important part of the video processing system, and it is the basis for the subsequent processing of digital video signals. In order to improve the real-time performance of video capture and processing, designs a video capture card based on FPGA chip. With a Cyclone III series FPGA chip as the core, this card converts the analog video signal into digital signal which is in accordance with BT.656 standard by the video decoder chip TVP5150. And digital video data are transferred into FPGA chip for subsequent processing. Experimental results show the effectiveness of the scheme, which can provide reference for the design of similar prod-ucts.