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Multiple Description Coding Using Adaptive Error Recovery for Real-Time Video Transmission

  • Zhi Yang
  • Jiajun Bu
  • Chun Chen
  • Linjian Mo
  • Kangmiao Liu
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4261)

Abstract

Real-time video transmission over packet networks faces several challenges such as limited bandwidth and packet loss. Multiple description coding (MDC) is an efficient error-resilient tool to combat the problem of packet loss. The main problem of MDC is the mismatch of reference frames in encoder and decoder, when some descriptions are lost during transmission. This paper presents an adaptive error recovery (AER) scheme for multiple description video coding. The proposed AER scheme, which is based on statistical analysis, can adaptively determine the nearly optimal error recovery (ER) method among our predefined ER methods such as interpolation, block replacement and motion vector (MV) reusing. The AER scheme has three advantages. First, it efficiently reduces the mismatch error. Second, it is completely based on pre- post-processing which requires no modification of the source coder. Third, it has low computational complexity, which is suitable for real-time video applications. Simulation results demonstrate that our proposed AER scheme achieves better performance compared with MDC with fixed error recovery (FER) scheme over lossy networks.

Keywords

Packet Loss Motion Vector Video Code Error Recovery Multiple Description 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Zhi Yang
    • 1
  • Jiajun Bu
    • 1
  • Chun Chen
    • 1
  • Linjian Mo
    • 1
  • Kangmiao Liu
    • 1
  1. 1.College of Computer ScienceZhejiang UniversityHangzhouChina

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