基于TMS320DM6446的多媒体视讯终端  

Design of Multimedia Video Communication Terminal Based on TMS320DM6446

作　　者：白艳茹[1] 刘贺平[2] 朱珍民[1] 罗海勇[1] 先明春[2] 高玉之[1] 

机构地区：[1]中国科学院计算技术研究所,北京100080 [2]北京科技大学信息工程学院,北京100083

出　　处：《仪表技术与传感器》2008年第8期68-71,共4页Instrument Technique and Sensor

基　　金："八六三"高技术计划基金资助课题(No.2006AA10Z253)

摘　　要：系统选用基于达芬奇技术的多媒体数字芯片TMS320DM6446作为系统CPU,并采用最新视频编码标准H.264压缩算法,实现基于IP网络的视讯终端系统。文中详细介绍了TMS320DM6446的硬件架构、系统的硬件构成和核心模块的实现,分析系统设计中的难点及关键技术。实验结果表明,该系统在不降低视频质量的前提下能够满足对D1分辨率的视频图像进行采集、实时编码和传输的要求,系统处理性能高,集成度强,交互性好,充分体现了高性能计算技术的特性。This system realized the IP-based video network terminal system by choosing multimedia digital chip TMS320DM6446 as the CPU, and using the latest video coding standard H. 264 compression algorithm. The paper described in detail the hardware architecture of the TMS320DM6446, design of system hardware and core modules, analysis of system design and key technical difficulties. Experimental results showed that the system can meet the requirements that under D1 resolution video image capture, real-time encoding and transmission without lowering the quality of the video, The system has high performance, strong integration, nicer interactive, and fully reflect the high-performance technical features of multimedia technology.

关 键 词：TMS320DM6446 视频通讯 多媒体技术 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]