Successive coding of correlated sources

Authors:
Jayanth Nayak;Ertem Tuncel
Affiliations:
Mayachitra, Inc., Santa Barbara, CA and Department of Electrical Engineering, University of California, Riverside, CA;Department of Electrical Engineering, University of California, Riverside, CA
Venue:
IEEE Transactions on Information Theory
Year:
2009

Citing 4
Cited 1

Distortion-rate bounds for fixed- and variable-rate multiresolution source codes

IEEE Transactions on Information Theory
Sequential coding of correlated sources

IEEE Transactions on Information Theory
All sources are nearly successively refinable

IEEE Transactions on Information Theory
Computation and analysis of the N-Layer scalable rate-distortion function

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Successive refinement of vector sources under individual distortion criteria

IEEE Transactions on Information Theory

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Abstract

The rate-distortion (RD) problem for two-layer coding of a pair (X, Y) of correlated sources is considered. The first layer information enables reconstruction of X within a certain distortion DX, while reception of both layers additionally enables reconstruction of Y within distortion DY. Although this problem is a special case of the successive refinement problem, the computation of the RD region for this scenario is nontrivial. Using a general class of outer bounds (analogous to Shannon lower bound in the classical RD theory) to the successive refinement rate-distortion region, the successive coding RD region for the case where (X, Y) is a jointly Gaussian pair and the distortion measure is squared-error is explicitly characterized.