Organization of optimal nonuniform lapped biorthogonal transforms based on coding efficiency

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

    Research output: Contribution to conferencePaper

    5 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Pages624-627
    Number of pages4
    Publication statusPublished - 1999 Dec 1
    EventInternational Conference on Image Processing (ICIP'99) - Kobe, Jpn
    Duration: 1999 Oct 241999 Oct 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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