北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2012, Vol. 35 ›› Issue (4): 85-88.doi: 10.13190/jbupt.201204.85.012

• 研究报告 • 上一篇    下一篇

基于视频解码依赖性的低延时无线视频广播纠删编码

何能强,张学聃,杜军,任勇   

  1. 清华大学 电子工程系
  • 收稿日期:2011-09-24 修回日期:2012-04-25 出版日期:2012-08-28 发布日期:2012-07-08
  • 通讯作者: 何能强 E-mail:henq07@mails.tsinghua.edu.cn
  • 作者简介:何能强(1985-),男,博士生,Email:henq07@mail.tsinghua.edu.cn 任勇(1963-),男,教授,博士生导师
  • 基金资助:

    国家自然科学基金项目(60932005);科技部中欧政府合作项目(2010DFA11680)

Video Decoding Dependency Erasure Code to Reduce  Delay in Wireless Video Broadcast

HE Neng-qiang, ZHANG Xue-dan, DU Jun, REN Yong   

  1. Department Of Electronic Engineering, Tsinghua University
  • Received:2011-09-24 Revised:2012-04-25 Online:2012-08-28 Published:2012-07-08
  • Contact: Nengqiang He E-mail:henq07@mails.tsinghua.edu.cn

摘要:

提出一种能降低无线视频广播中视频延时的数据包纠删编码方法. 该方法在利用视频接收端反馈信息的基础上,通过考虑视频数据包之间所具有的视频解码依赖性特点,以减少视频延时为目标构造用于视频广播的纠删编码数据包. 相比于现有纠删编码,仿真结果表明,该纠删编码方法能使视频接收端获得更小的视频延时.

关键词:

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margin-bottom: 0pt" class="p15">font-size: 10.5pt, mso-spacerun: 'yes'"> 无线视频广播, 视频解码依赖性, 纠删编码  

Abstract:

A video decoding dependency erasure code is proposed to reduce receivers video delay in wireless video broadcast. According to packet receiving status of broadcast receivers, the proposed coding scheme first considers video packets decoding dependency, and then constructs coded packets on the fly to reduce receivers video delay. Simulation shows that the proposed code has lower video delay than the existing erasure codes.

Key words: wireless video broadcast, decoding dependency, erasure code

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