【作者】 闫鹏； 周付根； 吴金中； 张彩梅； 田立； 刘翔宇；

【Author】 Yan Peng~(1)),Zhou fugen~(2)),Wu jinzhong~(3)),Zhang caimei~(4)),Tian li~(5)),Liu xiangyu~(6)) 1)2)5)6)(Image Center,School of Astronautics,Beihang University,Beijing,100191) 3)4)(No.3 Institute of China Electronics Technology Group Corporation,Beijing,100015)

【机构】 北京航空航天大学宇航学院图像中心； 中国电子科技集团公司第三研究所；

【摘要】 基于DSP的硬件系统是实现视频处理算法的良好平台,应用非常广泛。随着视频处理对实时性和精确性要求的提升,单片DSP有时难以完成处理任务。本文重点介绍了基于两块TI公司TMS320DM648型DSP的视频处理系统的硬件设计思路和设计方法。TMS320DM648属于性能强大的"达芬奇"系列DSP,峰值运算能力达8800MMACS(百万次乘加运算每秒),外设丰富,是系统高性能的保证。该系统双DSP的拓扑结构不是简单固定的——如常用的主从方式、并行方式等一而是通过多种有效的通信接口设计,配以FPGA协处理器,实现了处理方法极为灵活的双DSP视频处理方式——双路视频处理、单路视频流水处理及单路视频并行处理;因而能够胜任针对不同应用要求的视频处理任务。总之,该视频处*理系统性能高、应用灵活,具有实用性和设计参考价值。更多还原

【Abstract】 The hardware system based on DSP is the excellent and popular platform for video processing.But the high standards of the real-time and accuracy result in the difficulty of using single DSP to perform the operation.This paper focuses on the design ideas and methods of the video processing system based on double TT’s DSPs called TMS320DM648.The TMS320DM648 is a powerful kind of Davinci^TM DSP with 8800 peak MMACS（Million Multiply Accumulate Cycles per Second） and has plentiful peripherals.This is the basic of a high-performance system.The topology of the double DSPs in the system is not simple or fixed.Not like the popular master-slave mode or parallel mode,with the help of various useful communication interfaces between the two DSPs and a FPGA co-processor,the double DSPs video processing system has very flexible and effective processing modes—double video signals respective processing mode,single video signal pipeline processing mode and single video signal parallel processing mode.As a result,this system is qualified to operate in various video processing fields.All in all,this video processing system is of high performance and well flexibility,so it is available and referable.更多还原