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

Seisuke Kyochi, Junya Aoyama, Masaaki Ikehara

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

    1 Citation (Scopus)

    Abstract

    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.

    Original languageEnglish
    Title of host publication2010 IEEE International Conference on Image Processing, ICIP 2010 - Proceedings
    Pages381-384
    Number of pages4
    DOIs
    Publication statusPublished - 2010 Dec 1
    Event2010 17th IEEE International Conference on Image Processing, ICIP 2010 - Hong Kong, Hong Kong
    Duration: 2010 Sep 262010 Sep 29

    Publication series

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

    Other

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

    Keywords

    • Adaptive directional lifting
    • Image coding
    • Wavelet transform

    ASJC Scopus subject areas

    • Software
    • Computer Vision and Pattern Recognition
    • Signal Processing

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  • Cite this

    Kyochi, S., Aoyama, J., & Ikehara, M. (2010). A direction-adaptive image coding using two-dimensional direct lifting wavelet transform. In 2010 IEEE International Conference on Image Processing, ICIP 2010 - Proceedings (pp. 381-384). [5649981] (Proceedings - International Conference on Image Processing, ICIP). https://doi.org/10.1109/ICIP.2010.5649981