基于FPGA的多路视频实时处理系统的设计

Design of a Multi-channel Real-time Video Processing System Based on FPGA

针对多路高清视频信号实时处理中的画面叠加以及画中画显示实时性差的问题,设计了一种基于FPGA的多路视频实时处理系统。该系统可接收外部参数控制,并通过跨时钟域技术,实现了4路HDMI视频信号的输入接收、画面任意比例缩放、任意位置叠加以及画面漫游的实时处理功能。相比现有系统,该设计通过FPGA并行处理架构实现了多路高清视频的无缝实时叠加,提高了系统实时性能和显示效果,为多视频源的实时处理提供了一种新的系统解决方案。

Aiming at the problems of poor real-time performance in overlay and picture-in-picture display of multi-channel high definition video signals,this paper designs a multi-channel real-time video processing system based on FPGA.The system can receive external parameter control.Through Clock Domain Crossing technology,the system implements real-time processing functions including input reception of 4 HDMI video signals,arbitrary aspect ratio scaling,arbitrary position overlay,and picture roaming.Compared with existing systems,this design achieves seamless real-time overlay of multi-channel HD videos through the FPGA parallel processing architecture,which improves system real-time performance and display effects.It provides a new system solution for real-time processing of multi-video sources.