Performance evaluation of subband coding and optimization of its filter coefficients

Jiro Katto*, Yasuhiko Yasuda

*この研究の対応する著者

研究成果: Conference contribution

111 被引用数 (Scopus)

抄録

In this paper, two analytical methods to evaluate coding performance of subband coding are proposed, and optimization of its filter coefficients from the viewpoint of energy compaction property is considered. The first method is based on matrix representation of subband coding in time domain, where the coding gain given by Jayant and Noll is introduced as a performance measure for filter banks with orthogonal property. The second method is based on the optimum bit allocation problem for subband coding (multirate filter bank), where the unified coding gain is derived as a new performance measure which can be applied to arbitrary transform techniques. We then try to find filter coefficients which maximize the unified coding gain according to input characteristics. This approach leads to optimization of filter coefficients from the viewpoint of energy compaction property.

本文言語English
ホスト出版物のタイトルProceedings of SPIE - The International Society for Optical Engineering
出版社Publ by Int Soc for Optical Engineering
ページ95-106
ページ数12
pt 1
ISBN(印刷版)0819407429
出版ステータスPublished - 1991 12 1
外部発表はい
イベントVisual Communications and Image Processing '91: Visual Communications Part 2 (of 2) - Boston, MA, USA
継続期間: 1991 11 111991 11 13

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
番号pt 1
1605
ISSN(印刷版)0277-786X

Other

OtherVisual Communications and Image Processing '91: Visual Communications Part 2 (of 2)
CityBoston, MA, USA
Period91/11/1191/11/13

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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