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WSCG
2004
136views more  WSCG 2004»
14 years 7 days ago
Light Vectors for a Moving Observer
Interactive rendering is usually made with very simple illumination models. High quality rendering is too slow to be interactive. In this paper, we extend the notion of light vect...
Rodolphe Crespin, Bernard Péroche
SIBGRAPI
2008
IEEE
14 years 5 months ago
Matching Photometric Observation Vectors with Shadows and Variable Albedo
We describe a procedure to solve the basic problem of Variable Lighting Photometric Stereo – namely, recovering the normal directions and intrinsic albedos at all visible points...
Helena Cristina da Gama Leitão, Rafael Feli...
AVSS
2007
IEEE
14 years 5 months ago
Accurate self-calibration of two cameras by observations of a moving person on a ground plane
A calibration algorithm of two cameras using observations of a moving person is presented. Similar methods have been proposed for self-calibration with a single camera, but intern...
Tsuhan Chen, Alberto Del Bimbo, Federico Pernici, ...
ISCAS
2006
IEEE
116views Hardware» more  ISCAS 2006»
14 years 4 months ago
Wavelet based detection of moving tree branches and leaves in video
—A method for detection of tree branches and leaves in video is proposed. It is observed that the motion vectors of tree branches and leaves exhibit random motion. On the other h...
B. Ugur Töreyin, A. Enis Çetin
ICCV
1998
IEEE
14 years 3 months ago
3D Photography on Your Desk
A simple and inexpensive approach for extracting the threedimensional shape of objects is presented. It is based on `weak structured lighting'; it di ers from other conventio...
Jean-Yves Bouguet, Pietro Perona