Comparison of redundant wavelet schemes for multiple description coding of video sequences

Multiple description coding (MDC) recently appeared as a joint source-channel coding technique specifically designed for realtime multimedia applications over best effort switched packet networks such as Internet, in order to cope with packet losses due to transmission errors or network congestion. In this paper we compare several redundant wavelet decompositions in the framework of multiple description of scalable video coding. A special attention is paid to the optimal design of the central decoder. Simulation results are provided for motion-compensated filter banks so as to evaluate the efficiency of the central and side decoding strategies. Compared with other techniques, a key factor of the proposed analysed schemes is their reduced redundancy factor.