300 search results - page 31 / 60 » Directionally Dependent Light Sources |
ICCV
2007
IEEE
14 years 11 months ago
2007
IEEE
In this paper, we propose a non-stationary stochastic filtering framework for the task of albedo estimation from a single image. There are several approaches in literature for alb...
ICPR
2008
IEEE
14 years 4 months ago
2008
IEEE
Shape-from-shading methods recover 3-D shape from intensity images. Often, Lambertian reflectance is assumed. The Lambertian assumption is attractive because it simplifies the a...
IVCNZ
1998
13 years 11 months ago
1998
This paper presents a new approach to integrate the gradient field to the relative depth or height map from multiple view directions in polar coordinates. Traditional integration ...
CVPR
2009
IEEE
15 years 3 months ago
2009
IEEE
Cast shadows induced by moving objects often cause serious problems to many vision applications. We present in this paper an online statistical learning approach to model the backg...
CVPR
2007
IEEE
14 years 12 months ago
2007
IEEE
It is well known in the photometric stereo literature that uncalibrated photometric stereo, where light source strength and direction are unknown, can recover the surface geometry...