A direction-adaptive image coding using two-dimensional direct lifting wavelet transform

Seisuke Kyochi, Junya Aoyama, Masaaki Ikehara

    研究成果: Conference contribution

    1 被引用数 (Scopus)

    抄録

    In this paper, a novel direction-adaptive image coding scheme is introduced by using two-dimensional adaptive directional lifting-based wavelet transform (2D-ADLWT). Conventionally, one-dimensional ADLWT (1D-ADLWT) has been proposed. However, it requires large amount of computational cost for optimal lifting direction decision and image transformation. In this work, adaptive directional lifting is implemented by using 2D direct lifting wavelet transform and directional downsampling matrices. Direct 2D lifting structure can reduce the computational cost for image transformation and optimal lifting direction decision significantly. Moreover, in the simulation, it is shown that the proposed method is comparable to the 1D-ADLWT in terms of image coding efficiency. Thus, an effective ADLWT with low computational cost can be provided.

    本文言語English
    ホスト出版物のタイトル2010 IEEE International Conference on Image Processing, ICIP 2010 - Proceedings
    ページ381-384
    ページ数4
    DOI
    出版ステータスPublished - 2010 12 1
    イベント2010 17th IEEE International Conference on Image Processing, ICIP 2010 - Hong Kong, Hong Kong
    継続期間: 2010 9 262010 9 29

    出版物シリーズ

    名前Proceedings - International Conference on Image Processing, ICIP
    ISSN(印刷版)1522-4880

    Other

    Other2010 17th IEEE International Conference on Image Processing, ICIP 2010
    国/地域Hong Kong
    CityHong Kong
    Period10/9/2610/9/29

    ASJC Scopus subject areas

    • ソフトウェア
    • コンピュータ ビジョンおよびパターン認識
    • 信号処理

    フィンガープリント

    「A direction-adaptive image coding using two-dimensional direct lifting wavelet transform」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

    引用スタイル