Optimal filtering of polyphase-downsampling-based multiple description coded video

摘要

We combine an optimal filtering approach with a multiplendescription coding (MDC) approach to enhance the quality of videonat the receiver. Optimal filter coefficients are computed at the en-ncoder and added to each description. At the decoder, optimal filterncoefficients are obtained directly from the bit stream and employednto improve the quality. Experimental results show that the proposednapproach enables better MDC performance for video in case ofnpacket losses.