Adaptive directional wavelet transform using pre-directional filtering

Yuichi Tanaka, Madoka Hasegawa, Shigeo Kato, Masaaki Ikehara, Truong Q. Nguyen

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    2 Citations (Scopus)

    Abstract

    This paper proposes a computationally efficient approach of adaptive directional wavelet transform (AD WT). The AD WT is based on lifting implementation of WT, and it is able to transform an image along diagonal orientations as well as traditional horizontal and vertical directions. The AD WT sacrifices computational speed for its good image coding performance. We present an alternative method to find the best transform directions by pre-directional filterings for the AD WT. The proposed direction calculation method shows very comparable image coding performance to the conventional one, whereas its computational cost is relatively very low.

    Original languageEnglish
    Title of host publication2009 IEEE International Conference on Image Processing, ICIP 2009 - Proceedings
    PublisherIEEE Computer Society
    Pages1-4
    Number of pages4
    ISBN (Print)9781424456543
    DOIs
    Publication statusPublished - 2009 Jan 1
    Event2009 IEEE International Conference on Image Processing, ICIP 2009 - Cairo, Egypt
    Duration: 2009 Nov 72009 Nov 10

    Publication series

    NameProceedings - International Conference on Image Processing, ICIP
    ISSN (Print)1522-4880

    Other

    Other2009 IEEE International Conference on Image Processing, ICIP 2009
    CountryEgypt
    CityCairo
    Period09/11/709/11/10

    Keywords

    • Adaptive directional wavelet transform
    • Directional lifting
    • Image coding
    • Wavelet transform

    ASJC Scopus subject areas

    • Software
    • Computer Vision and Pattern Recognition
    • Signal Processing

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