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Multistate vs. single-state video coding over error-prone channels
Citation key 1065Ekmekci2003
Author Sila Ekmekci and Thomas Sikora
Title of Book Proc. of the Thirty-Seventh Asilomar Conference on Signals, Systems and Computers
Pages 1544–1547
Year 2003
DOI 10.1109/ACSSC.2003.1292244
Address Pacific Grove, CA, USA
Month mar
Abstract Multiple description coding (MDC) is a forward error correction scheme where two or more descriptions of the source are sent to the receiver over different channels. If only one description is received the signal can be reconstructed with distortion D/sub 1/ or D/sub 2/. If both channels are received on the other hand, the combined information is used to achieve a lower distortion D/sub 0/. Multistate video coding (MSVC) is a specific MDC scheme where the video is coded into multiple independently decodable streams each with its own prediction process and state. In this paper we compare MSVC to single description coding (SDC) at different loss rates and coding options under the assumption that the motion vectors are always available. Results show that when motion vectors are received, SDC performs better than MSVC at every coding option tested. The performance difference is bigger for low motion sequences.
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