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  • 杨志伟,冯宗哲,郭宝龙.实时视频网络传输系统实现技术[J].电讯技术,2005,45(4):61 - 65.    [点击复制]
  • .Implementation of a Real-time Video Stream Transmission System[J].,2005,45(4):61 - 65.   [点击复制]
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实时视频网络传输系统实现技术
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摘要:
实时视频网络传输技术的研究对开展视频应用具有重大意义。本文给出了一个实时视频网络传输系统的实现框图,并结合该原理框图,分析了实时视频网络传输系统的关键技术:视频采集、视频编码/解码和网络传输控制协议。其中特别强调了发送端的面向通信的视频编码、接收端的错误隐藏和差错恢复和提供视频应用服务质量保护(QoS)的网络传输控制协议,同时给出具体的实现方式。最后与嵌入式系统开发相结合,搭建了一个用户终端开发平台。
关键词:  视频采集  视频通信  视频编码  嵌入式操作系统
DOI:10.3969/j.issn.1001-893X.
投稿时间:2004-10-12
基金项目:教育部优秀青年教师资助计划
Implementation of a Real-time Video Stream Transmission System
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Abstract:
Research on the implementation methods of real-time video stream transmission systems is important for video application. In this paper,the block diagram of a real-time video network transmission system is provided.On this base,a detailed analysis of the key technology is made,which indudes video capturing, encoding and decoding system, network transmission control protocol (TCP).Especially, the emphasis is laid on video encoding technology for communication at the sending terminal, error concealment and error resilience at the receiving terminal, network transmission control protocol for providing QoS(Quality of Service). And then the embedded video transmission platform is designed by integrating the embedded operating system for providing a powerful, flexible and robust real-time video application.
Key words:  Video capturing,Video communication,Video encoding,Embedded operating system
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