Organization of optimal nonuniform lapped biorthogonal transforms based on coding efficiency

Nobutaku Omiya, Takayuki Nagai, Masaaki Ikehara, Shin ichi Takahashi

研究成果: Paper査読

5 被引用数 (Scopus)


In this paper, we present a optimal nonuniform lapped biorthogonal transforms for image compression. Subband coding using wavelet transforms have much attention because of multiresolution representation. Wavelet transform is regarded as nonuniform filter bank and is constructed by tree structure of 2 channel filter bank. However it may not optimal in the sense of energy compaction. If we can design nonuniform filter banks directly, it has possibility to overcome the conventional wavelet transform. We then design direct-structured nonuniform filter bank with lapping window, we call NULBT. Finally, we show some examples and confirm the validity of our method.

出版ステータスPublished - 1999 12月 1
イベントInternational Conference on Image Processing (ICIP'99) - Kobe, Jpn
継続期間: 1999 10月 241999 10月 28


OtherInternational Conference on Image Processing (ICIP'99)
CityKobe, Jpn

ASJC Scopus subject areas

  • ハードウェアとアーキテクチャ
  • コンピュータ ビジョンおよびパターン認識
  • 電子工学および電気工学


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