Multiple-description vector quantization using translated lattices with local optimization
2004 (English)In: GLOBECOM: IEEE Global Telecommunications Conference, NEW YORK: IEEE , 2004, 41-45 p.Conference paper (Refereed)
Multiple-description coding is a joint source- and channel coding technique suitable for real-time multimedia transmission over erasure channels. This work improves the previous methods of multiple-description vector quantization using lattice structured codebooks by introducing translated lattices in the single-description codebooks. The quantizer can easily adapt to the current channel condition, using the locally optimized combined-description codebooks, assuming that channel statistics are available at the encoder. Compared to previous methods, the central distortion is greatly reduced for noisy channels, without a significant effect on complexity.
Place, publisher, year, edition, pages
NEW YORK: IEEE , 2004. 41-45 p.
, IEEE Global Telecommunications Conference (Globecom), ISSN 1930-529X
combined source-channel coding, multimedia communication, optimisation, vector quantisation
IdentifiersURN: urn:nbn:se:kth:diva-44012DOI: 10.1109/GLOCOM.2004.1377909ISI: 000226689900009ScopusID: 2-s2.0-18144376704ISBN: 0-7803-8794-5OAI: oai:DiVA.org:kth-44012DiVA: diva2:449079
GLOBECOM'04 - IEEE Global Telecommunications Conference; Dallas, TX; 29 November 2004 through 3 December 2004
QC 201110192011-10-192011-10-192012-03-22Bibliographically approved