Multiple description lattice vector quantization: variations and extensions

Jonathan A. Kelner, Vivek K. Goyal, Jelena Kovacevic

Research output: Contribution to journalConference article

Abstract

Multiple description lattice vector quantization (MDLVQ) is a technique for two-channel multiple description coding. We observe that MDLVQ, in the form introduced by Servetto. Vaishampayan and Sloane in 1999, is inherently optimized for the central decoder; i.e., for a zero probability of a lost description. With a nonzero probability of description loss, performance is improved by modifying the encoding rule (using nearest neighbors with respect to 'multiple description distance') and by perturbing the lattice codebook. The perturbation maintains many symmetries and hence does not significantly effect encoding or decoding complexity. An extension to more than two descriptions with attractive decoding properties is outlined.

Original languageEnglish (US)
Pages (from-to)480-489
Number of pages10
JournalData Compression Conference Proceedings
StatePublished - Jan 1 2000
EventData Compression Conference - DDC 2000 - Snowbird, UT, USA
Duration: Mar 28 2000Mar 30 2000

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ASJC Scopus subject areas

  • Computer Networks and Communications

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