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

Taichi Yoshida, Taizo Suzuki, Seisuke Kyochi, Masaaki Ikehara

    研究成果: Article査読

    12 被引用数 (Scopus)

    抄録

    In this paper, we propose a two dimensional (2D) nonseparable adaptive directional lifting (ADL) structure for discrete wavelet transform (DWT) and its image coding application. Although a 2D nonseparable lifting structure of 9/7 DWT has been proposed by interchanging some lifting, we generalize a polyphase representation of 2D non-separable lifting structure of DWT. Furthermore, by introducing the adaptive directional filteringingto the generalized structure, the 2D non-separable ADL structure is realized and applied into image coding. Our proposed method is simpler than the 1D ADL, and can select the different transforming direction with 1D ADL. Through the simulations, the proposed method is shown to be efficient for the lossy and lossless image coding performance.

    本文言語English
    ページ(範囲)1920-1927
    ページ数8
    ジャーナルIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
    E94-A
    10
    DOI
    出版ステータスPublished - 2011 10

    ASJC Scopus subject areas

    • 信号処理
    • コンピュータ グラフィックスおよびコンピュータ支援設計
    • 電子工学および電気工学
    • 応用数学

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