【作者】 李侃；

【导师】 陈耀武； 田翔；

【作者基本信息】 浙江大学 ， 电子信息技术及仪器， 2011， 硕士

【摘要】 本文调研了内窥镜的发展历史,针对医用电子内窥镜对图像质量要求越来越高这一现状,设计了基于FPGA+双DSP的嵌入式高清内窥镜视频处理系统。该系统用FPGA对采集和显示的视频数据进行预处理,用两片DaVinci-HD DSP并行运算,实现了高清视频的H.264High-Profile实时编解码,用PowerPC嵌入式处理器完成了系统管理以及视频数据的本地存储与网络传输。性能测试结果表明,该系统能够实时处理分辨率为1080i60的视频,视频编解码达到H.264High-Profile标准。本文详细论述了高清内窥镜视频处理系统的硬件设计和实现,包括系统功能需求分析、总体架构设计、各功能单元具体实现、PCB设计和系统调试。全文共分为五个部分：第一章介绍了内窥镜高清图像发展状况以及高清视频标准HDTV,并给出了本课题的研究内容与意义。第二章在分析系统需求的基础上提出了系统的总体架构设计。第三章详细论述了系统各功能单元的具体实现。第四章论述系统的高速PCB布局、布线以及系统的调试。第五章对论文研究进行了总结,并且对将来进一步发展的方向进行了展望。更多还原

【Abstract】 In this paper, we widely survey the development of electronic endoscope, aiming at the current situation of the demand of medical electronic endoscope to image quality is more higher, a solution of embedded endoscope high definition video processing system based on FPGA+dual DSPs was proposed. FPGA was applied to preprocess the video image collected and displayed, and dual DSPs based on DaVinci-HD were applied parallel to high definition video H.264 High-Profile real-time encoding/decoding, then PowerPC embedded processor was applied to the system management, hard disk storage and network transmission. Performance test results show that, the resolution of the system is 1080i60, and the support of H.264 High-Profile has good performance.The whole design flow includes:functional specification definition, general structure design, system realization, PCB design and system debugging.Chapter 1 introduces the back ground and current status of Endoscope system and high-definition standard, gives a general description of the subject.Chapter 2 discusses functional specification definition and general structure design.Chapter 3 discusses the realization of the system.Chapter 4 discusses PCB layout and system debugging.Chapter 5 concludes the research works of the dissertation, and gives the prospect of further research work.更多还原