Blocking artifacts reduction in block-based dual-tree complex wavelet transform

Takaaki Ishikawa, Hiroshi Watanabe, Yukihiro Bandoh, Seishi Takamura, Hirohisa Jozawa

    研究成果: Conference contribution

    1 引用 (Scopus)

    抄録

    We propose a new method to reduce blocking artifacts in an encoded image by block-based Dual-Tree Complex Wavelet. In this paper, we describe a cause of blocking artifacts of the block-based approach and focus on a method for finding sparse representations from redundant complex coefficients. The proposed method offers minimal transform operation performing on the same resolution for an input image. Experimental results show that the proposed method reduces blocking artifacts that are observed along block boundaries and thus improves the visual quality.

    元の言語English
    ホスト出版物のタイトルISPACS 2009 - 2009 International Symposium on Intelligent Signal Processing and Communication Systems, Proceedings
    ページ260-263
    ページ数4
    DOI
    出版物ステータスPublished - 2009
    イベント2009 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2009 - Kanazawa
    継続期間: 2009 12 72009 12 9

    Other

    Other2009 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2009
    Kanazawa
    期間09/12/709/12/9

    Fingerprint

    Wavelet transforms
    artifact
    cause

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Signal Processing
    • Electrical and Electronic Engineering
    • Communication

    これを引用

    Ishikawa, T., Watanabe, H., Bandoh, Y., Takamura, S., & Jozawa, H. (2009). Blocking artifacts reduction in block-based dual-tree complex wavelet transform. : ISPACS 2009 - 2009 International Symposium on Intelligent Signal Processing and Communication Systems, Proceedings (pp. 260-263). [5383851] https://doi.org/10.1109/ISPACS.2009.5383851

    Blocking artifacts reduction in block-based dual-tree complex wavelet transform. / Ishikawa, Takaaki; Watanabe, Hiroshi; Bandoh, Yukihiro; Takamura, Seishi; Jozawa, Hirohisa.

    ISPACS 2009 - 2009 International Symposium on Intelligent Signal Processing and Communication Systems, Proceedings. 2009. p. 260-263 5383851.

    研究成果: Conference contribution

    Ishikawa, T, Watanabe, H, Bandoh, Y, Takamura, S & Jozawa, H 2009, Blocking artifacts reduction in block-based dual-tree complex wavelet transform. : ISPACS 2009 - 2009 International Symposium on Intelligent Signal Processing and Communication Systems, Proceedings., 5383851, pp. 260-263, 2009 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2009, Kanazawa, 09/12/7. https://doi.org/10.1109/ISPACS.2009.5383851
    Ishikawa T, Watanabe H, Bandoh Y, Takamura S, Jozawa H. Blocking artifacts reduction in block-based dual-tree complex wavelet transform. : ISPACS 2009 - 2009 International Symposium on Intelligent Signal Processing and Communication Systems, Proceedings. 2009. p. 260-263. 5383851 https://doi.org/10.1109/ISPACS.2009.5383851
    Ishikawa, Takaaki ; Watanabe, Hiroshi ; Bandoh, Yukihiro ; Takamura, Seishi ; Jozawa, Hirohisa. / Blocking artifacts reduction in block-based dual-tree complex wavelet transform. ISPACS 2009 - 2009 International Symposium on Intelligent Signal Processing and Communication Systems, Proceedings. 2009. pp. 260-263
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