基于PowerPC+FPGA的视频处理器设计实现

Design of video processor based on the PowerPC + FPGA

介绍了一种基于PowerPC和FPGA构架的设计方案,阐述了图像处理硬件部分的组成的原理和结构,包括视频解码输入部分,后端的编码输出部分,以及在FPGA内的处理,主要是对图像进行了隔行转逐行、叠加和选择。同时给出了通信过程中的数据流流通过程和方式。设计的图像处理器可以实现初步转换视频制式和通信方式,并可实现叠加和切换。可以进一步处理实现PAL视频与VGA视频的转换。

A design scheme based on PowerPC and FPGA architecture is introduced,this paper expounds the image processing of hardware part of the principle and structure,including video decoding input part,the back end code output section,as well as within the FPGA processing,mainly for the interlaced transfer line by line,stacked and choice.At the same time gives the communication process and the way the data flow in the process of circulation.Designed image processor can realize preliminary convert video formats and communication mode,and superposition and switching can be realized.Can be further processing PAL video with VGA video conversion.