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《Chinese Journal of Stereology and Image Analysis》 2011-03
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Extracting point cloud data for jacket of vehicle crash test dummy based on CT images

LI Xingdong1,LAI Xinghua2,LIU Wenli2,YANG Min3 (1.National Institute of Metrology,Beijing 100013,China;2.State Key Laboratory of Automotive Safety And Energy,Tsinghua University,Beijing 100084,China;3.School Of Mechanical Engineering and Automation,Beihang University,Beijing 100191,China)  
CT assisted reverse engineering plays an important role in modern product design and modeling.Through CT scanning and image reconstruction,the internal and external point cloud data can be obtained without damage to the object.However,for some objects featuring complex outer surface and thin walled structure,it is difficult to get the accurate point cloud data by conventional method,which can cause problems such as contour intersection,broken contours,and so on.In this paper,a new method to solve such problems is proposed to obtain the jacket CAD model of vehicle crash test dummy.Accurate point cloud data can be acquired by this method and so facilitates further CAD modeling.
【Fund】: 国家科技支撑项目资助(2011BAI02B02)
【CateGory Index】: TP391.41
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