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Comparative rate-distortion performance of multiple description coding for real-time audiovisual communication over the Internet
KTH, School of Electrical Engineering (EES), Sound and Image Processing.
KTH, School of Electrical Engineering (EES), Sound and Image Processing.
2006 (English)In: IEEE Transactions on Communications, ISSN 0090-6778, E-ISSN 1558-0857, Vol. 54, no 4, 625-636 p.Article in journal (Refereed) Published
Abstract [en]

To facilitate real-time audiovisual communication through the Internet, forward error correction (FEC) and multiple description coding (MDC) can be used as low-delay packet-loss recovery techniques. We use both a Gilbert channel model and data obtained from real IP connections to compare the rate-distortion performance of different variants of FEC and MDC. Using identical overall rates with stringent delay constraints, we find that side-distortion optimized MDC generally performs better than Reed-Solomon-based FEC. If the channel condition is known from feedback, then channel-optimized MDC can be used to exploit this information, resulting in significantly improved performance. Our results confirm that two-independent-channel transmission is preferred to single-channel transmission, both for FEC and MDC.

Place, publisher, year, edition, pages
2006. Vol. 54, no 4, 625-636 p.
Keyword [en]
channel coding, error correction, information theory, multimedia communication, source coding, description vector quantization, description scalar quantizers, packet-switched networks, recovery techniques, h.264/avc, channels, standard, design, protection, lattice
National Category
URN: urn:nbn:se:kth:diva-15642DOI: 10.1109/TCOMM.2006.873071ISI: 000237118800010ScopusID: 2-s2.0-33646003867OAI: diva2:333684
QC 20100525 QC 20111004. Conference: International Conference on Spoken Language Processing. Cheju, SOUTH KOREA. OCT, 2004Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2011-10-04Bibliographically approved

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