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A Simple Algorithm for Ordering and Compression of Vector Codebooks

  • Maciej Bartkowiak
  • Adam Łuczak
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2124)

Abstract

The problem of storage or transmission of codevectors is an essential issue in vector quantization with custom codebook. The proposed technique for compression of codebooks relies on structuring and ordering properties of a binary split algorithm used for codebook design. A simple algorithm is presented for automatic ordering of the codebook entries in order to group similar codevectors. This similarity is exploited in efficient compression of the codebook content by the means of lossless differential coding and lossy DCT-based coding. Experimental results of two compression experiments are reported and show that a small compression gain can be achieved in this way.

Keywords

vector quantization codebook compression 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2001

Authors and Affiliations

  • Maciej Bartkowiak
    • 1
  • Adam Łuczak
    • 1
  1. 1.Institute of Electronics and TelecommunicationsPoznań University of TechnologyPoznańPoland

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