72 search results - page 1 / 15 » Camera Calibration and Light Source Estimation from Images w... |
CVPR
2005
IEEE
14 years 6 months ago
2005
IEEE
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...
CVIU
2007
13 years 4 months ago
2007
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...
PG
2002
IEEE
13 years 9 months ago
2002
IEEE
We present a new method for the detection and estimation of multiple directional illuminants, using a single image of any object with known geometry and Lambertian reflectance. W...
CVPR
2010
IEEE
13 years 11 months ago
2010
IEEE
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...
CGF
2005
13 years 4 months ago
2005
We present an algorithm to automatically estimate three-dimensional light positions from an unordered set of images. We collect images using a single stationary camera while manua...