计算机应用 ›› 2012, Vol. 32 ›› Issue (09): 2441-2444.DOI: 10.3724/SP.J.1087.2012.02441

• 网络与通信 • 上一篇    下一篇

基于depth-map和分布式视频编码的多视点视频传输方法

吴琳1,金志刚1*,赵安安2,周圆1   

  1. 1.天津大学 电子信息工程学院,天津 300072;
    2.天津大学 软件学院,天津 300072
  • 收稿日期:2012-03-31 修回日期:2012-05-08 发布日期:2012-09-01 出版日期:2012-09-01
  • 通讯作者: 吴琳
  • 作者简介:吴琳(1987-),女,黑龙江佳木斯人,硕士研究生,主要研究方向:网络多媒体、立体视频; 金志刚(1972-),男,上海人,教授,博士生导师,主要研究方向:无线网络、物联网、网络安全、网络管理; 赵安安(1989-),男,陕西延安人,硕士研究生,主要研究方向:网络多媒体; 周圆(1983-),女,河北石家庄人,讲师,博士,主要研究方向:视频通信、立体视频。
  • 基金资助:

    国家863计划项目(2008AA01A320)

Multi-view video transmission method based on depth-map and distributed video coding

WU Lin1,JIN Zhi-gang1*,ZHAO An-an2,ZHOU Yuan1   

  1. 1.School of Electronic Information Engineering,Tianjin University,Tianjin 300072,China;
    2.School of Computer Software,Tianjin University,Tianjin 300072,China
  • Received:2012-03-31 Revised:2012-05-08 Online:2012-09-01 Published:2012-09-01

摘要: 针对多视点视频传输系统数据量庞大的问题,提出一种基于深度图(depth-map)和分布式视频编码(DVC)的不等错误保护(UEP)传输方法。该方法首先基于多个视点提取深度图;然后,在传输过程中传输一个视点及其深度图;最后,经过网络传输,在解码端由一个视点图及其深度图生成其他视点。由于视点图和深度图在解码端的重要程度不同,对需要传输的视点图和深度图采用不同的分布式视频编码方法,进行不平等的错误保护。仿真实验结果表明,所提传输方法比传统的分布式多视点视频编码传输系统具有更好的抗误码性能,提高了传输可靠性,图像的峰值信噪比(PSNR)约提高1.5dB。

关键词: 分布式视频编码, Wyner-Ziv编码, 深度图, 不等错误保护

Abstract: Concerning the large volume of data of multi-view video transmission system, an Unequal Error Protection (UEP) method based on depth-map and Distributed Video Coding (DVC) was proposed. Firstly, the depth-map based on multi-view was extracted. Secondly, one point view and the depth-map were transmitted. Finally, through the network transmission, other point views were generated by the point view and the depth-map at the decoder. Considering their different importance at the decoder, different distributed video coding methods were used in the point view and the depth-map to realize UEP. The simulation results show that the proposed transmission method provides stronger error resilience and higher transmission reliability, and it improves the Peak Signal-to-Noise Ratio (PSNR) of images about 1. 5 dB than traditional distributed multi-view video coding transmission system.

Key words: Distributed Video Coding (DVC), Wyner-Ziv coding, depth-map, Unequal Error Protection (UEP)

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