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