文件名称:jifangdonglijiankong(5)
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随着电子信息技术、网络技术、图像处理等技术的飞速发展,嵌入式无线视频监控技术应运而生。基于嵌入式技术的无线视频监控以其灵活性、高集成性、便捷性等诸多优点必将取代现有的有线视频监控。
本文针对视频监控的实际需求,结合嵌入式技术、图像处理技术,设计并实现了一种可靠性高、成本低的基于ARM11的嵌入式视频采集及压缩系统,它是视频监控的前端,是无线视频监控的一个子系统。论文首先描述了视频监控系统研究的背景,分析了国内视频监控系统的现状和发展趋势,并阐述了视频监控系统研究的目的和意义。然后,介绍了新一代视频压缩标准H.264的技术特点,详细阐述了H.264出色的压缩效率和良好的网络适应性,并进一步研究了H.264标准的编码特性和码流结构。最后,提出了嵌入式视频监控系统的软、硬件总体架构,并逐步对硬件平台和软件模块设计进行了选择和优化。其中,根据视频数据采集以及压缩处理的需要选择摄像头和微处理器,搭建好硬件平台。在软件设计方面,首先完成了嵌入式系统的交叉开发环境搭建,然后完成了在开发板上操作系统内核、文件系统和设备驱动的移植,最后完成了Linux下基于V4L的视频采集和基于H.264的视频压缩编码。
-With the development of electronic information technology, network technology and image processing technology, embedded wireless video monitoring technology appears.In the future,Wireless video monitoring system ,with many advantages such as agility,integration,convenience and so on,will replace existing wired video monitoring system inevitably.
Aiming at actual demand of video monitoring,this paper designs and realizes a reliable and cheap embedded video capturing and compression system based on ARM11, with the combination of embedded technology and image processing technology.This system is the front end of video monitoring and a subsystem of wireless video monitoring system.This paper firstly describes the background of video monitoring system study, analyzes the status and development trend of video monitoring system at home and mainly expounds the purpose and significance of video monitoring system study.Secondly, this paper introduces technical features of the newest video-codin
本文针对视频监控的实际需求,结合嵌入式技术、图像处理技术,设计并实现了一种可靠性高、成本低的基于ARM11的嵌入式视频采集及压缩系统,它是视频监控的前端,是无线视频监控的一个子系统。论文首先描述了视频监控系统研究的背景,分析了国内视频监控系统的现状和发展趋势,并阐述了视频监控系统研究的目的和意义。然后,介绍了新一代视频压缩标准H.264的技术特点,详细阐述了H.264出色的压缩效率和良好的网络适应性,并进一步研究了H.264标准的编码特性和码流结构。最后,提出了嵌入式视频监控系统的软、硬件总体架构,并逐步对硬件平台和软件模块设计进行了选择和优化。其中,根据视频数据采集以及压缩处理的需要选择摄像头和微处理器,搭建好硬件平台。在软件设计方面,首先完成了嵌入式系统的交叉开发环境搭建,然后完成了在开发板上操作系统内核、文件系统和设备驱动的移植,最后完成了Linux下基于V4L的视频采集和基于H.264的视频压缩编码。
-With the development of electronic information technology, network technology and image processing technology, embedded wireless video monitoring technology appears.In the future,Wireless video monitoring system ,with many advantages such as agility,integration,convenience and so on,will replace existing wired video monitoring system inevitably.
Aiming at actual demand of video monitoring,this paper designs and realizes a reliable and cheap embedded video capturing and compression system based on ARM11, with the combination of embedded technology and image processing technology.This system is the front end of video monitoring and a subsystem of wireless video monitoring system.This paper firstly describes the background of video monitoring system study, analyzes the status and development trend of video monitoring system at home and mainly expounds the purpose and significance of video monitoring system study.Secondly, this paper introduces technical features of the newest video-codin
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