Detection of rotationally symmetric shape orientations by fold-invariant shape-specific points

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题名:	Detection of rotationally symmetric shape orientations by fold-invariant shape-specific points
作者:	J. C. Lin;S. L. Chou;W. H. Tsai
贡献者:	Department of Information Communication
关键词:	Refolding;Symmetric body;Rotation axis;Spatial orientation;Pattern matching;Pattern recognition;Computer vision;Computer system
日期:	1992
上传时间:	2009-11-25 02:30:59 (UTC+0)
出版者:	Asia University
摘要:	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.
關聯:	Pattern Recognition 25 (5): 473-482
显示于类别:	[資訊傳播學系] 期刊論文

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