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计算机工程 ›› 2009, Vol. 35 ›› Issue (19): 227-229,. doi: 10.3969/j.issn.1000-3428.2009.19.076

• 多媒体技术及应用 • 上一篇    下一篇

基于无线信道的SVC数据误码保护方案

高 鹏1,滕国伟2,沈礼权3,谢锦辉1   

  1. (1. 国家广播电影电视总局广播科学研究院,北京 100045;2. 上海广电集团中央研究院,上海 200030; 3. 上海大学新型显示技术及系统应用教育部重点实验室,上海 200072)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-10-05 发布日期:2009-10-05

Error Protection Scheme for Scalable Video Coding Data Based on Wireless Channel

GAO Peng1, TENG Guo-wei 2, SHEN Li-quan3, XIE Jin-hui1   

  1. (1. Academy of Broadcasting Science, State Administration of Radio Film and Television, Beijing 100045; 2. Central Research Academy of SVA Group Co., Ltd, Shanghai 200030; 3. Key Lab of Advanced Display and System Application of Ministry of Education, Shanghai University, Shanghai 200072)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-10-05 Published:2009-10-05

摘要: 提出一种基于无线传输信道的分级视频编码数据误码保护方案。该方案通过综合分析空间增强层数据、时间增强层数据、信噪比增强层数据的相对重要性,按重要性的不同将各增强层的数据归为3类,对不同级别数据采用不同冗余度的前向纠错保护方式。实验结果证明,该方案可以取得较好的传输效果,与传统的均匀误码保护及非均匀误码保护方案相比,可获得2 dB和0.5 dB的PSNR增益。

关键词: 可分级视频编码, 传输, 误码保护方案

Abstract: This paper proposes a Unequal Error Protection(UEP) scheme for the scalable video with a combined spatial, temporal, and quality(SNR) scalability over wireless channels. The bit stream is divided into three types according to the importance to the reconstructed picture. Each sub-bit-stream is protected by unequal quantities of bits. Experimental results show the scheme can improve coding efficiency of PSNR by 2.0 dB and 0.5 dB compared with traditional Equal Error Protection(EEP) and UEP scheme.

Key words: Scalable Video Coding(SVC), transmission, error protection scheme

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