Combined Source-Channel Video Coding

  • King N. Ngan
  • C. W. Yap
Chapter

Abstract

In this chapter, we have discussed and outlined a novel approach in the design of an error resilient combined source-channel coding scheme for the transmission of video over highly error prone mobile channels. The chapter begins with an introduction to combined source-channel coding followed by a short overview of work performed in this area in the past. A scheme based upon the H.263 standard and modifications performed to it to facilitate the application of UEP are described. Additional sections cover the EREC algorithm used to preserve synchonisation, and RCPC codes used for UEP. We have demonstrated our approach over various channel models ranging from Gaussian to Rayleigh with the best performance gain obtained using a soft decision channel decoder and the EREC algorithm. In addition, we have also shown that the H.263 decoder requires only simple modifications to provide a measure of error concealment such that certain visually annoying artefacts may be removed.

Keywords

Convolutional Code Error Concealment Unequal Error Protection Rayleigh Channel Mobile Channel 
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 Science+Business Media Dordrecht 1998

Authors and Affiliations

  • King N. Ngan
    • 1
  • C. W. Yap
    • 1
  1. 1.Visual Communications Research Group Department of Electrical and Electronic EngineeringThe University of Western AustraliaCrawleyAustralia

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