Error-resilient image and video coding for wireless communicationsystems |
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| Authors: | Redmill D.W. Bull D.R. Chung-How J.T. Kingsbury N.G. |
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| Affiliation: | Dept. of Electr. & Electron. Eng., Bristol Univ.; |
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| Abstract: | 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 |
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