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Multiple Description Video Coding Using Rate-Distortion Optimized DCT Coefficient Splitting  

Kim, Il-Koo (School of Electrical Eng. Seoul National Univ.)
Cho, Nam-Ik (School of Electrical Eng. Seoul National Univ.)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.39, no.6, 2002 , pp. 565-574 More about this Journal
Abstract
We propose an algorithm for the robust transmission of video in error prone environment based on multiple description (MD) scheme and simple rate-distortion operators. The redundancy rate-distortion (RRD) criteria is used to split a one-layer compressed video stream into two correlated descriptions. The proposed algorithm can find more candidate points on the RRD curve than the conventional RRD based methods. A new distortion measure is also defined in this paper, which considers more realistic error environments. Since the proposed MD video coder is based on the standard H.263 coder, each description can be decoded independently by the standard H.263 decoder. Also, several descriptions can be decoded into a single stream by additional merge stage and the H.263 decoder. Simulation results show that the proposed MD video coder yields better performance than the conventional MD splitting algorithm at all bitrates both in single and two description cases.
Keywords
error resilient coding; multiple description coding; redundancy-rate-distortion; H.263;
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