Sciweavers

CGVR
2006
14 years 12 days 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»
14 years 5 months 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
15 years 2 days 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
15 years 21 days 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