Complexity of Delaunay triangulation for points on lower-dimensional polyhedra

  • Authors:
  • Nina Amenta;Dominique Attali;Olivier Devillers

  • Affiliations:
  • UC Davis;CNRS-LIS Grenoble;INRIA Sophia-Antipolis

  • Venue:
  • SODA '07 Proceedings of the eighteenth annual ACM-SIAM symposium on Discrete algorithms
  • Year:
  • 2007

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Abstract

We show that the Delaunay triangulation of a set of points distributed nearly uniformly on a polyhedron (not necessarily convex) of dimension p in d-dimensional space is O(n(d-1)/p). For all 2 ≤ p ≤ d - 1, this improves on the well-known worst-case bound of O(n⌈d/2⌉).