A fast vector quantization encoding method using wavelet transform

Wen Jyi Hwang, Biing Yau Chen, Sen Shiang Jeng

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A new fast codeword search algorithm for vector quantizers (VQ) is presented in this paper. This algorithm uses the pyramid structure of the codewords to accelerate the encoding process. The pyramid structure is obtained using the wavelet transform. This algorithm is able to reduce the codeword search time without sacrificing the performance and storage complexity of the VQs. Simulation results show that this algorithm is well-suited for the VQs with high vector dimension and/or large codebook size.

Original languageEnglish
Pages (from-to)73-76
Number of pages4
JournalPattern Recognition Letters
Volume18
Issue number1
DOIs
Publication statusPublished - 1997 Jan 1

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Keywords

  • Fast codeword search
  • Vector quantization
  • Wavelet transform

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Computer Vision and Pattern Recognition
  • Artificial Intelligence

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