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    ASIA unversity > 資訊學院 > 資訊傳播學系 > 期刊論文 >  Item 310904400/4351


    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/4351


    Title: Detection of rotationally symmetric shape orientations by fold-invariant shape-specific points
    Authors: J. C. Lin;S. L. Chou;W. H. Tsai
    Contributors: Department of Information Communication
    Keywords: Refolding;Symmetric body;Rotation axis;Spatial orientation;Pattern matching;Pattern recognition;Computer vision;Computer system
    Date: 1992
    Issue Date: 2009-11-25 10:30:59 (UTC+8)
    Publisher: Asia University
    Abstract: Two new types of shape-specific points, called fold-invariant centroid (FIC) and fold-invariant radius weighted mean (FIRWM), are introduced for detecting the orientations of rotationally symmetric shapes. A given rotationally symmetric shape is first transformed into a new fold-invariant shape. The centroid and the radius weighted mean of the new shape are then transformed back to obtain the proposed FIC and FIRWM, respectively. FIC and FIRWM points are proved to be invariant to translation, rotation and scaling, and so can be used for matching rotationally symmetric shapes.
    Relation: Pattern Recognition 25 (5): 473-482
    Appears in Collections:[資訊傳播學系] 期刊論文

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