Mesh repair with user-friendly topology control

Limitations of current 3D acquisition technology often lead to polygonal meshes exhibiting a number of geometrical and topological defects which prevent them from widespread use. In this paper we present a new method for model repair which takes as input an arbitrary polygonal mesh and outputs a valid two-manifold triangle mesh. Unlike previous work, our method allows users to quickly identify areas with potential topological errors and to choose how to fix them in a userfriendly manner. Key steps of our algorithm include the conversion of the input model into a set of voxels, the use of morphological operators to allow the user to modify the topology of the discrete model, and the conversion of the corrected voxel set back into a two-manifold triangle mesh. Our experiments demonstrate that the proposed algorithm is suitable for repairing meshes of a large class of shapes. Key words: topology, morphology, opening, closing, 2-manifold

• Type: Journal
• Year: 2011
• Where: CAD
• Authors: Franck Hétroy, Stéphanie Rey, Carlos Andújar, Pere Brunet, Alvar Vinacua
• Keywords: Arbitrary Polygonal Mesh, CAD 2011, Theoretical Computer Science, Two-manifold Triangle, Valid Two-manifold Triangle