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141
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DMTCS
2010
157views Mathematics» more  DMTCS 2010»
14 years 10 months ago
Edge-Removal and Non-Crossing Configurations in Geometric Graphs
A geometric graph is a graph G = (V, E) drawn in the plane, such that V is a point set in general position and E is a set of straight-line segments whose endpoints belong to V . W...
Oswin Aichholzer, Sergio Cabello, Ruy Fabila Monro...
COMPGEOM
2007
ACM
15 years 2 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, ...
88
Voted
ICPR
2004
IEEE
16 years 1 months ago
Condensation Tracking through a Hough Space
Recent work has shown tracking groups of lines through the parameter space represented by a Hough accumulator array to be efficient and insensitive to both occlusion and changes i...
Andrew French, Steven Mills, Tony P. Pridmore
ACCV
2006
Springer
15 years 6 months ago
Minimal Weighted Local Variance as Edge Detector for Active Contour Models
Performing segmentation of narrow, elongated structures with low contrast boundaries is a challenging problem. Boundaries of these structures are difficult to be located when noise...
Max W. K. Law, Albert C. S. Chung
ICIP
2009
IEEE
16 years 1 months ago
Efficiency Improvements For A Geometric-partition-based Video Coder
H.264/AVC has brought an important increase in coding efficiency in comparison to previous video coding standards. One of its features is the use of macroblock partitioning in a t...