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CGVR
2006
9 years 7 months ago
Interpolation-Friendly Soft Shadow Maps
We present Penumbra Limit Maps, a technique for rendering soft shadows from a modified shadow map. The shadow representation used by our method has excellent interpolation propert...
Orion Sky Lawlor
ICRA
2009
IEEE
241views Robotics» more  ICRA 2009»
10 years 8 days ago
Robust edge extraction for SwissRanger SR-3000 range images
—This paper presents a new method for extracting object edges from range images obtained by a 3D range imaging sensor⎯the SwissRanger SR-3000. In range image preprocessing stag...
Cang Ye, Guruprasad M. Hegde
ICPR
2004
IEEE
10 years 6 months ago
Robust Local Max-Min Filters by Normalized Power-Weighted Filtering
A normalized, power-weighted averaging filter (NPF) is a very good approximation to the well-know local maximum and minimum filters along the object edges and offers noise reducti...
Lucas J. van Vliet
ICIP
2007
IEEE
10 years 7 months ago
Nonconvex Regularization for Shape Preservation
We show that using a nonconvex penalty term to regularize image reconstruction can substantially improve the preservation of object shapes. The commonly-used total-variation regul...
Rick Chartrand
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