基于LVDS信号的视频图像亮度直方图叠加的FPGA实现

FPGA Superposition of Video Image Luminance Histogram Based on LVDS

针对拍摄高清电视节目时需要对视频图像进行直方图分析监测的需求,设计了一种基于LVDS信号的FPGA数字图像亮度直方图预处理转换板模块.结合高速LVDS图像传输原理,实现视频图像的亮度直方图的叠加,以直观数据提供给拍摄者做参考,进行视频画面的先期预测.试验结果表明,该模块工作正常可靠,能实时处理和输出有效亮度直方图数据,满足高清电视节目拍摄的视频分析等要求.

A conversion module used in the pretreatment of FPGA digital image histogram based on LVDS was designed for histogram analysis and monitoring of video images when HDTV program was shot.The superposition of the brightness histogram of the video image was realized on the high-speed LVDS image transmission principle so that visual video image reference information could be provided to the photographer and video screen could be predicted.The experimental results showed that the module worked well and could effectively process and output valid luminance histogram data to satisfy the requirements of video analysis for high definition TV programs.