Technical Section: Variational implicit surface meshing

  • Authors:
  • Arnaud Gelas;Sébastien Valette;Rémy Prost;Wieslaw L. Nowinski

  • Affiliations:
  • Biomedical Imaging Laboratory, Singapore BioImaging Consortium, Biopolis, Singapore and Department of Systems Biology, Harvard Medical School, Boston, MA, USA;CREATIS-LRMN, University of Lyon, INSA-Lyon, CNRS UMR5220, Inserm U630, France;CREATIS-LRMN, University of Lyon, INSA-Lyon, CNRS UMR5220, Inserm U630, France;Biomedical Imaging Laboratory, Singapore BioImaging Consortium, Biopolis, Singapore

  • Venue:
  • Computers and Graphics
  • Year:
  • 2009

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Abstract

In this paper, we propose a new algorithm to mesh implicit surfaces which produces meshes both with a good triangle aspect ratio as well as a good approximation quality. The number of vertices of the output mesh is defined by the end-user. For this goal, we perform a two-stage processing: an initialization step followed by an iterative optimization step. The initialization step consists in capturing the surface topology and allocating the vertex budget. The optimization algorithm is based on a variational vertices relaxation and triangulation update. In addition a gradation parameter can be defined to adapt the mesh sampling to the curvature of the implicit surface. We demonstrate the efficiency of the approach on synthetic models as well as real-world acquired data, and provide comparisons with previous approaches.