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CGF
2007
145views more  CGF 2007»
13 years 7 months ago
Bitmask Soft Shadows
Recently, several real-time soft shadow algorithms have been introduced which all compute a single shadow map and use its texels to obtain a discrete scene representation. The res...
Michael Schwarz, Marc Stamminger
CGF
2008
122views more  CGF 2008»
13 years 7 months ago
Accurate Shadows by Depth Complexity Sampling
The accurate generation of soft shadows is a particularly computationally intensive task. In order to reduce rendering time, most real-time and offline applications decorrelate th...
Vincent Forest, Loïc Barthe, Mathias Paulin
CVIU
2007
157views more  CVIU 2007»
13 years 7 months ago
Camera calibration and light source orientation from solar shadows
In this paper, we describe a method for recovering camera parameters from perspective views of daylight shadows in a scene, given only minimal geometric information determined fro...
Xiaochun Cao, Hassan Foroosh
SIGGRAPH
1999
ACM
13 years 11 months ago
Computing Exact Shadow Irradiance Using Splines
We present a solution to the general problem of characterizing shadows in scenes involving a uniform polygonal area emitter and a polygonal occluder in arbitrary position by manif...
Michael M. Stark, Elaine Cohen, Tom Lyche, Richard...
IJRR
2010
159views more  IJRR 2010»
13 years 2 months ago
Vision-guided Robot System for Picking Objects by Casting Shadows
We present a complete vision guided robot system for model based 3D pose estimation and picking of singulated 3D objects. Our system employs a novel vision sensor consisting of a ...
Amit Agrawal, Yu Sun, John Barnwell, Ramesh Raskar