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ANALYSIS OF K-CHANNEL MULTIPLE DESCRIPTION QUANTIZATION: 2009 DATA COMPRESSION CONFERENCE, PROCEEDINGS
KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre. KTH, School of Electrical Engineering (EES), Sound and Image Processing.
KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre. KTH, School of Electrical Engineering (EES), Sound and Image Processing.
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, Published paper (Refereed)
Abstract [en]

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.
Series
IEEE Data Compression Conference, ISSN 1068-0314
Keyword [en]
VECTOR QUANTIZATION
National Category
Computer and Information Science
Identifiers
URN: urn:nbn:se:kth:diva-30779DOI: 10.1109/DCC.2009.36ISI: 000268029900006Scopus ID: 2-s2.0-67650694678ISBN: 978-0-7695-3592-0 (print)OAI: oai:DiVA.org:kth-30779DiVA: diva2:404711
Conference
19th Data Compression Conference Snowbird, UT, MAR 16-18, 2009
Note
QC 20110318Available from: 2011-03-18 Created: 2011-03-04 Last updated: 2011-10-18Bibliographically approved

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CiteExportLink to record
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