ANALYSIS OF K-CHANNEL MULTIPLE DESCRIPTION QUANTIZATION: 2009 DATA COMPRESSION CONFERENCE, PROCEEDINGS
2008 (English)In: DCC 2009: 2009 DATA COMPRESSION CONFERENCE, PROCEEDINGS / [ed] Storer JA, Marcellin MW, LOS ALAMITOS, CA: IEEE COMPUTER SOC , 2008, 53-62 p.Conference paper (Refereed)
This paper studies the tight rate-distortion bound for K-channel symmetric multiple-description coding for a memoryless Gaussian source. We find that the product of a function of the individual side distortions (for single received descriptions) and the central distortion (for K received descriptions) is asymptotically independent of the redundancy among the descriptions. Using this property, we analyze the asymptotic behaviors of two different practical multiple-description lattice vector quantizers (MDLVQ). Our analysis includes the treatment of a MDLVQ system from a new geometric viewpoint, which results in an expression for the side distortions using the normalized second moment of a sphere of higher dimensionality than the quantization space. The expression of the distortion product derived from the lower bound is then applied as a criterion to assess the performance losses of the considered MDLVQ systems.
Place, publisher, year, edition, pages
LOS ALAMITOS, CA: IEEE COMPUTER SOC , 2008. 53-62 p.
, IEEE Data Compression Conference, ISSN 1068-0314
Computer and Information Science
IdentifiersURN: urn:nbn:se:kth:diva-30779DOI: 10.1109/DCC.2009.36ISI: 000268029900006ScopusID: 2-s2.0-67650694678ISBN: 978-0-7695-3592-0OAI: oai:DiVA.org:kth-30779DiVA: diva2:404711
19th Data Compression Conference Snowbird, UT, MAR 16-18, 2009
QC 201103182011-03-182011-03-042011-10-18Bibliographically approved