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    National Tsing Hua University Institutional Repository > 電機資訊學院 > 電機工程學系 > 會議論文  >  Saliency-based image retargeting in compressed domain

    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/84004

    Title: Saliency-based image retargeting in compressed domain
    Authors: Yuming Fang;Weisi Lin;Zhenzhong Chen;Chia-Wen Lin
    教師: 林嘉文
    Date: 2011
    Publisher: Association for Computing Machinery
    Relation: ACM Multimedia (Short Paper Track), Scottsdale, Arizona, USA, November 28–December 1, 2011, Pages 1049-1052
    Keywords: Image retargeting
    saliency detection
    human visual sensitivity
    compressed domain
    Abstract: In this paper, we propose a novel image retargeting algorithm to resize images based on the extracted saliency information from the compressed domain. Firstly, we utilize DCT coefficients in JPEG bitstream to perform saliency detection with the consideration of the human visual sensitivity. The obtained saliency information is used to determine the relative visual importance of each 8 x 8 block for the image. Furthermore, we propose a new adaptive block-level seam removal operation for connected blocks to resize the image. Thanks to the directly derived saliency information from the compressed domain, the proposed image retargeting algorithm effectively preserves the objects of attention, efficiently removes the less crucial regions, and therefore significantly outperforms the relevant state-of-the-art algorithms, as demonstrated with the careful analysis and in the extensive experiments.
    Relation Link: http:/dx.doi.org/10.1145/2072298.2071935
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/84004
    Appears in Collections:[電機工程學系] 會議論文
    [光電研究中心] 會議論文

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