Generalized linear-phase paraunitary nonuniform filter bank (GenLPPUNUFB)

Yuhiro Kobayashi, Masahiro Kawada, Masaaki Ikehara

    研究成果: Article査読

    抄録

    In this paper, we present the theory, design and imple-mentation of generalized linear-phase paraunitary nonuni-form filter bank (GenLPPUNUFB). Tree structure of wavelet transform is regarded as nonuniform filter bank (NUFB), and it will be adopted in JPEG2000 which will become the next standard for still image coding. However 2-channel linear-phase paraunitary NUFB (LPPUNUFB) does not exist except for Haar function, so it isn't optimal in the sense of transform coding gain. Although direct structured LPPUNUFB, which overcomes tree structured LPPUNUFB (Haar function), has already been presented [3], it is not general. Therefore we develop lattice structure of GenLPPUNUFB, and we show some examples and confirm the validity of our method.

    本文言語English
    ページ数1
    ジャーナルICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
    4
    DOI
    出版ステータスPublished - 2002 1 1

    ASJC Scopus subject areas

    • ソフトウェア
    • 信号処理
    • 電子工学および電気工学

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