Scalable and Channel-Adaptive Unequal Error Protection of Images with LDPC Codes

  • Adrian Munteanu
  • Maryse R. Stoufs
  • Jan Cornelis
  • Peter Schelkens
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4179)


This paper considers the design of an optimal joint source-channel coding system employing scalable wavelet-based source coders and unequal error protection for error-resilient transmission over binary erasure channels. We theoretically show that the expected average rate-distortion function in the separately encoded subbands is convex with monotonically decreasing slopes and use this fact to propose a new algorithm which minimizes the end-to-end distortion. This algorithm is based on a simplified Viterbi-search followed by Lagrangian-optimization. We show that our proposed solution results in significant complexity reductions while providing very near-to-optimal performance.


Code Rate LDPC Code Turbo Code Protection Level Arithmetic Code 
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

  • Adrian Munteanu
    • 1
  • Maryse R. Stoufs
    • 1
  • Jan Cornelis
    • 1
  • Peter Schelkens
    • 1
  1. 1.Department of Electronics and InformaticsVrije Universiteit BrusselBrusselBelgium

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