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)

    抄録

    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.

    本文言語English
    ページ624-627
    ページ数4
    出版ステータスPublished - 1999 12 1
    イベントInternational Conference on Image Processing (ICIP'99) - Kobe, Jpn
    継続期間: 1999 10 241999 10 28

    Other

    OtherInternational Conference on Image Processing (ICIP'99)
    CityKobe, Jpn
    Period99/10/2499/10/28

    ASJC Scopus subject areas

    • Hardware and Architecture
    • Computer Vision and Pattern Recognition
    • Electrical and Electronic Engineering

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