TY - GEN
T1 - Two asymmetric descriptions from many symmetric descriptions
AU - Mashiach, Adam
AU - Kochman, Yuval
AU - Østergaard, Jan
AU - Zamir, Ram
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2017/1/4
Y1 - 2017/1/4
N2 - Multiple descriptions provide a mechanism for graceful degradation in open-loop lossy source coding over a lossy-packet network. Two well understood extreme cases are successive refinement (fully asymmetric) and symmetric descriptions. Existing solutions for the general asymmetric case are, however, cumbersome. We present a framework for designing an efficient asymmetric two-description scheme, based on dividing many symmetric descriptions into two groups, and encoding each group jointly. Using this framework, we present a sum-rate optimal solution based on oversampling and dithered delta-sigma quantization, which was previously applicable only for the symmetric descriptions case.
AB - Multiple descriptions provide a mechanism for graceful degradation in open-loop lossy source coding over a lossy-packet network. Two well understood extreme cases are successive refinement (fully asymmetric) and symmetric descriptions. Existing solutions for the general asymmetric case are, however, cumbersome. We present a framework for designing an efficient asymmetric two-description scheme, based on dividing many symmetric descriptions into two groups, and encoding each group jointly. Using this framework, we present a sum-rate optimal solution based on oversampling and dithered delta-sigma quantization, which was previously applicable only for the symmetric descriptions case.
UR - http://www.scopus.com/inward/record.url?scp=85014163641&partnerID=8YFLogxK
U2 - 10.1109/ICSEE.2016.7806114
DO - 10.1109/ICSEE.2016.7806114
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AN - SCOPUS:85014163641
T3 - 2016 IEEE International Conference on the Science of Electrical Engineering, ICSEE 2016
BT - 2016 IEEE International Conference on the Science of Electrical Engineering, ICSEE 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2016 IEEE International Conference on the Science of Electrical Engineering, ICSEE 2016
Y2 - 16 November 2016 through 18 November 2016
ER -