Curvature-constrained Feature Graph Extraction
this paper proposes a shape descriptor with a feature graph to highlight both topological structure and geometric features of 3D mesh model. Firstly, the geodesic distance for the computation of an invariant mapping function on a 3D mesh model is adopted to obtain a Reeb graph (RG) skeleton. Secondly, discrete curvature values on the mesh vertices are analyzed to detect the topological changes and to specify the articulated details. Finally, new nodes denoting the articulation features are extracted and used for adaptively updating the original Reeb graph. The enhanced feature graph provides an affine-invariant and visually meaningful skeleton of arbitrary topological shape in a reasonable execution time. A series of experiments has been implemented and shown the robustness and efficiency of the proposed algorithm.
component Reeb graph discrete curvature articulation feature graph
LiHan
College of Computer & Information Technology, Liaoning Normal University, Dalian,China
国内会议
北京
英文
1-6
2011-11-04（万方平台首次上网日期，不代表论文的发表时间）