基于MAP-CA的视频多点处理系统的研究与实现  

Study and Implementation of Video Multipoint Process Based on MAP-CA

作　　者：肖进胜[1] 谢文娟[2] 肖胜华[3] 沈未名[1] 

机构地区：[1]武汉大学测绘遥感信息工程国家重点实验室,湖北武汉430079 [2]武汉大学电子信息学院,湖北武汉430079 [3]武汉科技大学计算机科学与技术学院,湖北武汉430081

出　　处：《计算机应用》2004年第7期54-57,共4页journal of Computer Applications

基　　金：武汉大学科研启动经费资助项目 (50 2 2 730 1 0 )

摘　　要：文中介绍了一种高性能媒体信号处理器MAP CA ,它具备对视音频信号进行压缩处理的优化结构和多种方便的标准音视频接口。针对视频会议中视频信息的处理需求 ,以MAP CA为核心处理器 ,设计了一个基于PC机的插卡式视频多点处理子系统 ,可应用于视频会议中多路码流的实时合成和转换 。The MAP CA digital signal processor is a high performance, fully programmable processor developed for various multimedia applications that require real time processing of video, audio, and image data. MAP CA DSP also integrates several peripheral devices on the chip, such as input and output ports for real time video and audio data. For the necessary of video processing in videoconference, the video multipoint process system is designed. It is based on the MAP CA processor and designed as a plug card. It can combine and convert the video bit stream without increasing process burden of PC.

关 键 词：视频会议 多点处理 DSP 

分 类 号：TN919.8[电子电信—通信与信息系统] TP37[电子电信—信息与通信工程]