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Measures for Surface Comparison on Unstructured Grids with Different Density

  • Natalia Dyshkant
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6607)

Abstract

We consider the problem of surface comparison given as spatial point clouds that can be explicitly projected onto a plane. This problem can be reduced to comparison of mesh functions of two variables given on different grids. A general case when both grids are unstructured and have different density is of interest. A measure to compare such functions that allow to estimate difference on areas with nodes from both grids and an algorithm to compute it are proposed. Estimation for computational complexity of the algorithm is presented. Computing experiments on real data (3d face models) were carried out.

Keywords

discrete surface model metrics for surface comparison unstructured grid Delaunay triangulation minimum spanning tree 3d face image 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Natalia Dyshkant
    • 1
  1. 1.Faculty of Computational Mathematics and Cybernetics, Leninskie gory, CMC MSULomonosov Moscow State UniversityMoscowRussian Federation

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