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» Implicit Convex Polygons
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WG
2010
Springer
14 years 10 months ago
Graphs with Large Obstacle Numbers
Motivated by questions in computer vision and sensor networks, Alpert et al. [3] introduced the following definitions. Given a graph G, an obstacle representation of G is a set of...
Padmini Mukkamala, János Pach, Deniz Sari&o...
COMPGEOM
2007
ACM
15 years 1 months ago
Between umbra and penumbra
Computing shadow boundaries is a difficult problem in the case of non-point light sources. A point is in the umbra if it does not see any part of any light source; it is in full l...
Julien Demouth, Olivier Devillers, Hazel Everett, ...
FCT
2003
Springer
15 years 4 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
PR
2008
100views more  PR 2008»
14 years 11 months ago
Boundary based shape orientation
The computation of a shape's orientation is a common task in the area of computer vision and image processing, being used for example to define a local frame of reference and...
Jovisa D. Zunic, Milos Stojmenovic
MMM
2003
Springer
258views Multimedia» more  MMM 2003»
15 years 5 months ago
2D Shape Transformation Using 3D Blending
Computer animation is one of the key components of a multimedia document or presentation. Shape transformation between objects of different topology and positions is an open model...
Galina Pasko, Alexander A. Pasko, M. Ikeda, Tosiya...