Segmentation methods for smooth point regions of conventional engineering objects

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• 作者：Benk&odblac ; Pá ; l ; Vá ; rady ; Tamá ; s
• 关键词：Reverse engineering ; Segmentation ; Local indicators ; Statistical similarity tests
• 刊名：Computer-Aided Design
• 出版年：2004
• 出版时间：May, 2004
• 年：2004
• 卷：36
• 期：6
• 页码：511-523
• 全文大小：580 K

文摘

The purpose of reverse engineering is to convert a large point cloud into an accurate, fair and consistent CAD model. The class of conventional engineering objects comprises, by a priori assumption, objects bounded only by simple, analytic surfaces, linear extrusion surfaces and surfaces of revolution. In this case it is possible to create a CAD model from point clouds with a minimal amount of user assistance. The key issue is segmentation, i.e. how to subdivide the point cloud into smaller regions, where each of which can be approximated by a single surface.