Two dimensional non-separable adaptive directional lifting structure of discrete wavelet transform

Taichi Yoshida, Taizo Suzuki, Seisuke Kyochi, Masaaki Ikehara

    研究成果: Conference contribution

    8 被引用数 (Scopus)

    抄録

    In this paper, we propose a two dimensional (2D) non-separable adaptive directional lifting (ADL) structure of discrete wavelet transform (DWT) and its image coding application. Conventionally, we have proposed a polyphase representation of a 2D non-separable lifting structure of DWT. We generalize the polyphase representation in this paper and one structure of the class has been proven to reduce errors due to the rounding operations and improve a compatibility of the irreversible 9/7 DWT, compared with a 2D separable lifting structure of DWT. Adding the adaptive directional transforming property to the generalized structure, our proposed method improves the lossy image coding performance with maintaining the compatibility.

    本文言語English
    ホスト出版物のタイトル2011 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011 - Proceedings
    ページ1529-1532
    ページ数4
    DOI
    出版ステータスPublished - 2011 8 18
    イベント36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011 - Prague, Czech Republic
    継続期間: 2011 5 222011 5 27

    出版物シリーズ

    名前ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
    ISSN(印刷版)1520-6149

    Other

    Other36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011
    国/地域Czech Republic
    CityPrague
    Period11/5/2211/5/27

    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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