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Proceedings of CAD'16, 2016, 257-261
Automatic Construction of Watertight Manifold Triangle Meshes from Scanned Point Clouds Using Matched Umbrella Facets

Ji Ma, Jack Szu-Shen Chen, Hsi-Yung Feng, The University of British Columbia
Lihui Wang, KTH Royal Institute of Technology

Abstract. Due to the increasing applications of modern 3D scanning technologies, point clouds have emerged as an effective data source to generate the complete surface model of a scanned object.  Converting a discrete point cloud data set into a triangle mesh surface representation, commonly known as mesh surface reconstruction, is one of the most widely employed approaches.  One key requirement in the application field of computer-aided design and geometric modeling is for the constructed triangle mesh surface to be a watertight manifold surface with correct topology.  However, due to the inevitable measurement noise in the scanned data as well as the surface quality of the original scanned object surface, it is still challenging to reconstruct a watertight manifold mesh surface that is topologically equivalent to the original object surface.  An effective and reliable mesh surface reconstruction method is thus in high demand.

Keywords. Watertight Manifold Mesh, Point Cloud, Delaunay Triangles

DOI: 10.14733/cadconfP.2016.257-261