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» Query point visibility computation in polygons with holes
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COMPGEOM
2005
ACM
14 years 11 months ago
The Visibility-Voronoi Complex and Its Applications
We introduce a new type of diagram called the VV(c)-diagram (the visibility–Voronoi diagram for clearance c), which is a hybrid between the visibility graph and the Voronoi diag...
Ron Wein, Jur P. van den Berg, Dan Halperin
FCT
2003
Springer
15 years 2 months ago
On Boundaries of Highly Visible Spaces and Applications
The purpose of this paper is to investigate the properties of a certain class of highly visible spaces. For a given geometric space C containing obstacles specified by disjoint s...
John H. Reif, Zheng Sun
VMV
2004
103views Visualization» more  VMV 2004»
14 years 11 months ago
Hardware-accelerated ambient occlusion computation
In this paper, we present a novel, hardwareaccelerated approach to compute the visibility between surface points and directional light sources. Thus, our method provides a first-o...
Mirko Sattler, Ralf Sarlette, Gabriel Zachmann, Re...
IJRR
2008
107views more  IJRR 2008»
14 years 9 months ago
Caging Polygons with Two and Three Fingers
: We present algorithms for computing all placements of two and three fingers that cage a given polygonal object with n edges in the plane. A polygon is caged when it is impossible...
Mostafa Vahedi, A. Frank van der Stappen
COMGEO
2008
ACM
14 years 9 months ago
Lower bounds for expected-case planar point location
Given a planar polygonal subdivision S, the point location problem is to preprocess S into a data structure so that the cell of the subdivision that contains a given query point c...
Theocharis Malamatos