A Distributed Video Coding Approach for Multiple Description Video Coding of Stereo Sequences
نویسندگان
چکیده
Recent works have proposed the combination of Multiple Description Coding (MDC) schemes with the novel Distributed Video Coding (DVC) paradigm in order to enable robust video transmission over lossy channels. The paper presents a Multiple Description Distributed Video Coder (MDDVC) that combines a polyphase-subsampling MDC approach with a novel hybrid Distributed Source Coding technique that processes the video signal both in the pixel and in the transform domain. The proposed approach is applied to the transmission of stereo video sequences in order to avoid an exceeding visual quality degradation in presence of losses. Tests on simulated lossy channels show that at high loss probabilities the PSNR value of the reconstructed video sequence improves with respect to its traditional MDC counterpart.
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