Delaunay properties of digital straight segments

  • Authors:
  • Tristan Roussillon;Jacques-Olivier Lachaud

  • Affiliations:
  • Université de Lyon, LIRIS, UMR5205, France;LAMA, UMR CNRS 5127, Université de Savoie, France

  • Venue:
  • DGCI'11 Proceedings of the 16th IAPR international conference on Discrete geometry for computer imagery
  • Year:
  • 2011

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Abstract

We present new results concerning the Delaunay triangulation of the set of points of pieces of digital straight lines. More precisely, we show how the triangulation topology follows the arithmetic decomposition of the line slope as well as its combinatorial decomposition (splitting formula). A byproduct is a linear time algorithm for computing the Delaunay triangulation and the Voronoi diagram of such sets.