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《Journal of Zhejiang University(Engineering Science)》 2007-09
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Optimal vertex matching algorithm for polygonal shapes

DING Yi-chuan,LIU Li-gang(Department of Mathematics,Zhejiang University,Hangzhou 310027,China)  
After analyzing the characteristics of three typical vertex matching approaches for planar polygonal shapes,i.e.,deformation minimization based matching approach,contour tangential variation based approach,and boundary segmentation based approach,a novel polygonal shape matching algorithm was developed based on an improved dynamic programming framework.The proposed algorithm considers both the local and the global geometrical properties of the shapes,and the matching result is invariant to the geometric transformation including translation,scaling,and rotation.Fifty-two sample shapes were tested using the four algorithms,and users scored all the matching results.Statistic data showed that the proposed algorithm performed much better than the other three algorithms.
【Fund】: 国家自然科学基金资助项目(60503067);; 浙江省自然科学基金资助项目(Y105159)
【CateGory Index】: TP391.41
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