Discrete complex structure on surfel surfaces

  • Authors:
  • Christian Mercat

  • Affiliations:
  • I3M, Université Montpellier 2, Montpellier cedex 5, France

  • Venue:
  • DGCI'08 Proceedings of the 14th IAPR international conference on Discrete geometry for computer imagery
  • Year:
  • 2008

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Abstract

This paper defines a theory of conformal parametrization of digital surfaces made of surfels equipped with a normal vector. The main idea is to locally project each surfel to the tangent plane, therefore deforming its aspect-ratio. It is a generalization of the theory known for polyhedral surfaces. The main difference is that the conformal ratios that appear are no longer real in general. It yields a generalization of the standard Laplacian on weighted graphs.