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Optimum Transform Domain Split VQ

Chatterjee, Saikat and Sreenivas, TV (2008) Optimum Transform Domain Split VQ. In: IEEE Signal Processing Letters, 15 . pp. 285-288.

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In this letter, we develop an optimum transform domain split vector quantization (TrSVQ) method. We address both the issues of achieving best rate-distortion (R/D) performance and less complexity. For quantizing a multivariate Gaussian source, we derive the mean-square error (MSE) performance expression for the TrSVQ method using high rate theory and optimum bit allocation. Also, to reduce the complexity, we develop a binary split-based iterative algorithm and use the algorithm in a tree structured manner to find the optimum subvectors' dimensions (ie. optimum splits).

Item Type: Journal Article
Publication: IEEE Signal Processing Letters
Publisher: IEEE
Additional Information: Copyright 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords: Transform coding;vector quantization.
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 13 Oct 2008 10:39
Last Modified: 19 Sep 2010 04:50
URI: http://eprints.iisc.ac.in/id/eprint/15972

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