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Error-resilient image and video coding for wireless communication systems

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4 Author(s)
Redmill, D.W. ; Dept. of Electr. & Electron. Eng., Bristol Univ., UK ; Bull, D.R. ; Chung-How, J.T. ; Kingsbury, N.G.

Current techniques for coding images and video sources with resilience to channel errors can remove much of the need for complex high-redundancy channel coding and provide a graceful degradation of performance with decreasing channel quality. The main function of these error-resilient techniques is to reduce the propagation of errors within the decoded data. Two main techniques are discussed in detail: the error-resilient entropy code (EREC) and pyramid vector quantisation (PVQ). The paper concludes with a comparison of the relative merits of these systems and areas for further consideration

Published in:

Electronics & Communication Engineering Journal  (Volume:10 ,  Issue: 4 )