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IJFCS
2002
122views more  IJFCS 2002»
13 years 4 months ago
The Delaunay Hierarchy
We propose a new data structure to compute the Delaunay triangulation of a set of points in the plane. It combines good worst case complexity, fast behavior on real data, small me...
Olivier Devillers
COMPGEOM
2001
ACM
13 years 8 months ago
Walking in a triangulation
Given a triangulation in the plane or a tetrahedralization in 3-space, we investigate the efficiency of locating a point by walking in the structure with different
Olivier Devillers, Sylvain Pion, Monique Teillaud
JCT
2007
110views more  JCT 2007»
13 years 4 months ago
Bijective counting of Kreweras walks and loopless triangulations
Abstract. We consider lattice walks in the plane starting at the origin, remaining in the first quadrant i, j ≥ 0 and made of West, South and North-East steps. In 1965, Germain ...
Olivier Bernardi
CPHYSICS
2004
93views more  CPHYSICS 2004»
13 years 4 months ago
Kinetic and dynamic Delaunay tetrahedralizations in three dimensions
We describe algorithms to implement fully dynamic and kinetic three-dimensional unconstrained Delaunay triangulations, where the time evolution of the triangulation is not only go...
Gernot Schaller, Michael Meyer-Hermann
ICPR
2008
IEEE
13 years 11 months ago
Tracking across non-overlapping views via geometry
Tracking across non-overlapping camera views is still an unsolved problem. Appearance is a popular cue that does not work when the views are considerably different. This paper pro...
Roman P. Pflugfelder, Horst Bischof