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《Computer Engineering and Design》 2013-08
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Matching method of 3D model based on carvature charaoteristics of teeth

XU Song-song1,MEI Xue1,GENG Jian-ping2(1.College of Automation and Electrical Engineering,Nanjing University of Technology,Nanjing 210000,China; 2.High-Tech Research institute of Nanjing University of Technology,Nanjing 210000,China)  
In order to improve the matching accuracy of teeth cone beam CT and blue light scan three-dimensional model without index point,a match method based on curvature characteristics selected corresponding point is put forward.First,3 points from reference model are taken as datum points,and the curvature value of each datum points is set as characteristic evaluation standard,points on the match model as feature points whose curvature value is similar to that of the datum points.Furthermore,corresponding matching points are selected to feature points under constraints followed by using three points translational and transformation method calculations rotation matrix R and translation vector t to match reference model and match model.The results of the simulation experiment verify the proposed algorithm accuracy and effectiveness.
【Fund】: 江苏省高校自然科学研究基金项目(09KJB 510002)
【CateGory Index】: TP391.41
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