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CVIU
2007
157views more  CVIU 2007»
13 years 4 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
CVPR
2010
IEEE
13 years 12 months ago
Geo-location estimation from two shadow trajectories
The position of a world point’s solar shadow depends on its geographical location, the geometrical relationship between the orientation of the sunshine and the ground plane wher...
Lin Wu, Xiaochun Cao
CVPR
2005
IEEE
14 years 6 months ago
Camera Calibration and Light Source Estimation from Images with Shadows
In this paper, we describe how camera parameters and light source orientation can be recovered from two perspective views of a scene given only two vertical lines and their cast s...
Xiaochun Cao, Mubarak Shah
CVPR
2008
IEEE
14 years 6 months ago
Characterizing the shadow space of camera-light pairs
We present a theoretical analysis for characterizing the shadows cast by a point light source given its relative position to the camera. In particular, we analyze the epipolar geo...
Daniel A. Vaquero, Matthew Turk, Ramesh Raskar, Ro...
CVPR
1999
IEEE
14 years 6 months ago
Shadow Gestures: 3D Hand Pose Estimation Using a Single Camera
This paper describes a system that uses a camera and a point light source to track a user's hand in three dimensions. Using depth cues obtained from projections of the hand a...
Jakub Segen, Senthil Kumar