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Vector Quantization Using Reflections of Triangular Subcodevectors

Makkapati, Vishnu and Mahapatra, Pravas (2006) Vector Quantization Using Reflections of Triangular Subcodevectors. In: 18th International Conference on Pattern Recognition, 2006. ICPR 2006, 20-24 August, Hong Kong.


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The design of a codebook consisting of codevectors is the goal of Vector Quantization (VQ) schemes. This solution is not unique and many variants of VQ have been proposed. VQ suffers from computational and memory complexities that increase with the size of codebook and codevector dimensions. The lack of a universal codebook that works across different class of images necessitates the transmission of the codebook along with the codevector indices. This paper proposes a novel method of vector quantization using reflections of triangular ubcodevectors. This method jointly reduces the memory and computational resources required for VQ. Numerical results are presented for the proposed scheme in comparison to a traditional VQ method and a method based on reflections.

Item Type: Conference Paper
Publisher: IEEE
Additional Information: Copyright 2006 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: Image compression;Vector quantization;Codebook design;Reflection of subcodevectors
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited: 30 Aug 2006
Last Modified: 19 Sep 2010 04:31
URI: http://eprints.iisc.ac.in/id/eprint/8405

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