电信科学 ›› 2011, Vol. 27 ›› Issue (9): 89-92.doi: 10.3969/j.issn.1000-0801.2011.9.024

• 研究与开发 • 上一篇    下一篇

无线视频传输的容错编码研究

柴鑫刚,郑冬冬   

  1. 中国移动通信集团有限公司研究院 北京100053
  • 出版日期:2011-09-15 发布日期:2017-06-22
  • 基金资助:
    国家电子信息产业发展基金资助项目(基于TD-SCDMA网络的城市图像信息管理系统研发

Error Resilient Coding for Video Transmission Based on Wireless

Xingang Chai,Dongdong Zheng   

  1. China Mobile Research Institute,Beijing 100053,China
  • Online:2011-09-15 Published:2017-06-22

摘要:

基于无线视频监控传输技术进行无线信道视频图像传输的过程中,经常面临数据传输错误、带宽变化、网络拥塞导致的视频数据丢失问题,严重影响了图像质量。Joint Video Team(JVT)of ISO/IEC MPEG and ITU-T VCEG提出了可伸缩视频编码(SVC),可实现视频空间、时间和图像质量的完全伸缩,本文结合率失真优化算法将可伸缩编码作为容错工具,引入了不同层数据,根据B-D代价函数决定自动重传机制,降低了视频数据丢失对图像质量的影响。仿真结果表明,该方法大大提高了视频码流的抗误码能力和传输的鲁棒性。

关键词: H.264/SVC, 容错编码, 率失真优化模式选择, 基于B-D代价的可选择重传

Abstract:

Joint video team(JVT)of ISO/IEC MPEG and ITU-T VCEG proposed scalable video coding(SVC). Scalable video coding can be realized fully flexible by space,time and quality. This combination of rate distortion optimization algorithm in scalable video coding coded as an error resilient tools. This paper introduces automatic retransmission mechanism that is decided by the different layers of data based on the B-D cost function. Reduce data loss and to improve the video quality. Simulation results show that the greatly enhanced video stream error resilience capability,to improve the robustness of video streaming.

Key words: H.264 scalable video coding, error resilient coding, RDO optimization, selective ARQ based on B-D cost

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