AN EFFICIENT JOINT SOURCE-CHANNEL RATE ALLOCATION SCHEME FOR JPEG2000 CODESTREAMS

Authors:
Zhenyu Wu;Ali Bilgin;Michael W. Marcellin
Affiliations:
-;-;-
Venue:
DCC '03 Proceedings of the Conference on Data Compression
Year:
2003

Citing 0
Cited 2

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Abstract

A two-level, hybrid-optimization scheme is proposed for rate allocation of JPEG2000(J2K)transmission over noisy channels. It combines forward error correction (FEC) and J2K errorresilience modes to minimize the expected end-to-end image distortion. Subject to a totaltarget bit rate, it forms fixed-length source packets, and can be adapted to fixed-length channel packets in a straightforward manner. The proposed scheme utilizes the source distortion-rate characteristics and the BER statistics of the available channel codes. It has complexity less than O(R2) for a specific J2K codestream, whereis the number of available channel code rates. Performance results with both RCPC and turbo codes for fixed-length sourcepackets are provided to show the effectiveness of the scheme.