中文摘要：

设计并实现了一种基于FPGA的视频显示系统,包括视频图像采集、处理和显示3个部分。视频图像采集部分能够接收与ITU-R BT.656标准兼容的YCrCb 4：2：2视频数据流,视频图像处理部分利用乒乓缓存技术实现了视频图像数据的高速缓存,视频图像显示部分能够输出标准VGA格式的视频图像。采用Al-tera的CycloneⅡEP2C70作为主要处理芯片,各个功能模块均用Verilog HDL实现,获得了较好的图像采集和显示效果。

英文摘要：

A video display system is designed and implemented based on FPGA.The architecture is composed of three subsystem,which are video capture,video processing and video display subsystem.The video capture subsystem can process YCrCb 4∶2∶2 video data stream which is compatible with the ITU-R BT.656 PAL standard,while the video processing subsystem video image data is stored highly with ping-pong cache technology,and the video image display subsystem can display the image in standard VGA format.The main processing chip of the system is Cyclone Ⅱ family of EP2C70 of Altera,and each functional module are achieved by Verilog HDL.The whole system has achieved good video capture and good display result.