基于龙芯2F视频处理系统的设计与实现

发布时间：2018-03-25 21:05

本文选题：龙芯2F　切入点：BT.656　出处：《西安电子科技大学》2014年硕士论文

【摘要】：现代化的信息技术发展迅猛，与此同时数字多媒体技术也广泛应用于人们生活中为之提供更好的服务，随之而来的是人们对视频实时性以及图像的质量要求越来越高，传统的数字视频图像处理技术已经不能满足人们的需求。国外的芯片长期占据图像处理芯片的主要市场，但随着国内流片技术的提高，，具有自主知识产权的芯片相关技术也有待开发。因此，本文以Davinci技术的龙芯2F处理器为核心，利用BT.656视频传输协议，提出了硬件与软件相结合的视频图像处理的设计方案。本文回顾了视频图像处理的发展历程及现状，对阿尔法视频叠加技术，传输协议BT.656标准、VESA标准等相关技术做了简单阐述，设计实现了基于龙芯2F的视频处理系统，着重论述了系统的整体框架的设计以及其软件子系统的设计实现过程。首先，在对整个系统的功能进行分析的基础上，介绍了系统的整个框架结构，并通过介绍系统的硬件平台，对系统的软件子系统的需求进行了分析；其次，对系统的软件子系统的各个模块的具体设计进行了详细描述；最后，提出了符合实际的测试方案，并给出测试结果分析。通过系统的测试表明，软硬件结合的视频图像处理技术能够更好的保证图像视频的质量以及对实时性传输的要求。
[Abstract]:With the rapid development of modern information technology, digital multimedia technology is also widely used in people's life to provide better services, followed by people to video real-time and image quality requirements more and more high. Traditional digital video image processing technology has not been able to meet the needs of people. Foreign chips have occupied the main market of image processing chips for a long time, but with the improvement of domestic streaming technology, Chip related technologies with independent intellectual property rights are also to be developed. Therefore, based on the Godson 2F processor of Davinci technology and BT.656 video transmission protocol, a design scheme of video image processing based on hardware and software is proposed in this paper. This paper reviews the development course and present situation of video image processing, describes the related technologies such as Alpha video superposition technology, BT.656 standard of transmission protocol and so on, and designs and implements a video processing system based on Longson 2F. The design of the whole frame of the system and the design and realization process of its software subsystem are discussed emphatically. Firstly, on the basis of analyzing the function of the whole system, the whole frame structure of the system is introduced. By introducing the hardware platform of the system, the requirements of the software subsystem of the system are analyzed. Secondly, the specific design of each module of the software subsystem of the system is described in detail. The test results are analyzed. The system tests show that the software and hardware combination of video image processing technology can better ensure the quality of image and video transmission requirements for real-time.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP391.41

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