基于FPGA的高清视频键控器的设计

Design of High Definition Video Keying Based on FPGA

随着电子科学技术的不断发展,高清数字电视因其优质的视音频效果已被广泛推广应用。在电视播出系统中,视频键控技术为增强数字电视播出时的多样性提供了支持。由于数字化系统具备开发难度低、系统稳定和价格低廉等优势,传统的模拟视频键控设备也将转变成数字化的设备。本文深入研究了一种高清视频键控方案,提出了一种使用FPGA来实现主视频信号和台标信号的键控的方案。

with the continuous development of electronic science and technology,HDTV has been widely used because of its high quality audio and video effects. In TV broadcasting system,video keying technology provides support for enhancing the diversity of digital TV broadcasting. Due to the advantages of low difficulty in developing digital system,stable system and low price,traditional analog video keying equipment will also be transformed into digital equipment. This in-depth study of a highdefinition video keying scheme,proposed a method of using FPGA to implement the main video signal and the station logo signal keying solutions.