A fast computation scheme of partial distortion entropy updating

研究成果: Conference contribution

抄録

The entropy of normalized partial distortions, referred to as the partial distortion entropy, is a very useful metric for online optimality evaluation of a vector quantization codebook. However, it is computationally expensive to update the partial distortion entropy so that it adapts to the changes in a codebook. Hence, its naive computation results in considerably increasing the cost of vector quantization codebook design, especially in the case of a large codebook. This paper presents a novel scheme of the partial distortion entropy updating. The proposed scheme is devised to update the partial distortion entropy without fully recalculating it. Therefore, the scheme requires much less computation than the recalculation, and its computational cost is constant irrespective of a codebook size. Experimental results clearly show that the proposed scheme is significantly effective for saving the computational cost of vector quantization codebook design with the partial distortion entropy.

本文言語English
ホスト出版物のタイトルInternational Conferen ON Information Technology
ホスト出版物のサブタイトルCoding Computing, ITCC 2004
編集者P.K. Srimani, A. Abraham, M. Cannataro, J. Domingo-Ferrer, R. Hashemi
ページ736-741
ページ数6
DOI
出版ステータスPublished - 2004 7 7
イベントInternational Conference on Information Technology: Coding Computing, ITCC 2004 - Las Vegas, NV, United States
継続期間: 2004 4 52004 4 7

出版物シリーズ

名前International Conference on Information Technology: Coding Computing, ITCC
1

Other

OtherInternational Conference on Information Technology: Coding Computing, ITCC 2004
国/地域United States
CityLas Vegas, NV
Period04/4/504/4/7

ASJC Scopus subject areas

  • ソフトウェア
  • 情報システム
  • 工学(全般)

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