Meshless parameterization and surface reconstruction
Computer Aided Geometric Design
Direct Segmentation for Reverse Engineering
CW '02 Proceedings of the First International Symposium on Cyber Worlds (CW'02)
Ridge-valley lines on meshes via implicit surface fitting
ACM SIGGRAPH 2004 Papers
Direct segmentation of algebraic models for reverse engineering
Computing - Geometric modelling dagstuhl 2002
Smooth feature lines on surface meshes
SGP '05 Proceedings of the third Eurographics symposium on Geometry processing
Detection of closed sharp edges in point clouds using normal estimation and graph theory
Computer-Aided Design
Robust feature extraction based on principal curvature direction
CVM'12 Proceedings of the First international conference on Computational Visual Media
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The reconstruction of a surface model from a point cloud is an important task in the reverse engineering of industrial parts. We aim at constructing a curve network on the point cloud that will define the border of the various surface patches. In this paper, we present an algorithm to extract closed sharp feature lines, which is necessary to create such a closed curve network. We use a first order segmentation to extract candidate feature points and process them as a graph to recover the sharp feature lines. To this end, a minimum spanning tree is constructed and afterwards a reconnection procedure closes the lines. The algorithm is fast and gives good results for real-world point sets from industrial applications.