Journal of South China University of Technology (Natural Science Edition) ›› 2013, Vol. 41 ›› Issue (8): 61-66,73.doi: 10.3969/j.issn.1000-565X.2013.08.010

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Error Concealment Algorithm for Spatial Multiple Description Coding of Video

Xu Wei- wei1,2 Jiang Rong- xin1,2 Chen Yao- wu1,2   

  1. 1.Institute of Advanced Digital Technology and Instrument,Zhejiang University,Hangzhou 310027,Zhejiang,China;2.Zhejiang Provincial Key Laboratory for Network Multimedia Technologies,Zhejiang University,Hangzhou 310027,Zhejiang,China
  • Received:2012-11-16 Revised:2013-03-11 Online:2013-08-25 Published:2013-07-01
  • Contact: 徐巍炜(1983-)，男，博士生，主要从事视频容错和错误恢复算法研究． E-mail:xuweiweimilk@zju.edu.cn
  • About author:徐巍炜(1983-)，男，博士生，主要从事视频容错和错误恢复算法研究．
  • Supported by:

    国家自然科学基金仪器专项资助项目(40927001);浙江省重点科技创新团队基金资助项目(2011Ｒ09021-06);浙江大学中央高校基本科研业务费专项资金资助项目

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Abstract:

Video transmission in unstable networks suffers packet loss and bit error.In order to solve this problem,a low- complexity error- concealment algorithm is proposed for the spatial multiple description coding (MDC).In the algorithm,different error concealment strategies are employed to treat the regions with different features.Moreover,the texture difference of adjacent frames and the residual energy of complementary description are used to estimate the spatial and motion differences of the lost description,based on which the region of lost macro- blocks is divided and different methods are adopted to implement error concealment.Experimental results show that,as compared with the traditional MDC error concealment algorithm,the proposed algorithm achieves better subjective and objec-tive quality of error concealment in most sequences.

Key words: video transmission, H.264 field coding, spatial multiple description coding, error concealment

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