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Proceedings Paper

Variable-rate lattice VQ algorithm for vector subband coding
Author(s): Hugh Q. Cao; Cindy C. Wang; Weiping Li
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Paper Abstract

In this paper, a variable rate lattice VQ algorithm for vector subband coding is proposed. It is a modification of a two-stage vector quantization-lattice vector quantization (VQ-LVQ) algorithm introduced by J. Pan and T. R. Fischer. After the modification, the new algorithm is designed to target low-bit rate coding instead of moderate bit rate to high bit rate coding in the original design. The new algorithm has been applied to a low bit rate vector subband coding scheme. Simulation result shows it can reduce the memory requirement while offering even better rate-distortion performance (up to 1 db) than regular unstructured VQ.

Paper Details

Date Published: 27 February 1996
PDF: 12 pages
Proc. SPIE 2727, Visual Communications and Image Processing '96, (27 February 1996); doi: 10.1117/12.233247
Show Author Affiliations
Hugh Q. Cao, Lehigh Univ. (United States)
Cindy C. Wang, Lehigh Univ. (United States)
Weiping Li, Lehigh Univ. (United States)

Published in SPIE Proceedings Vol. 2727:
Visual Communications and Image Processing '96
Rashid Ansari; Mark J. T. Smith, Editor(s)

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