CVPR
2012
IEEE
11 years 6 months ago
2012
IEEE
We identify and study two types of “accidental” images that can be formed in scenes. The first is an accidental pinhole camera image. These images are often mistaken for shad...
TIM
2010
12 years 11 months ago
2010
The accuracy of automated face recognition systems is greatly affected by intraclass variations between enrollment and identification stages. In particular, changes in lighting con...
ICIP
2010
IEEE
13 years 2 months ago
2010
IEEE
Illumination variation has been one of the most intractable problems in face recognition and many approaches have been proposed to handle illumination problem in the last decades ...
JEI
2006
13 years 4 months ago
2006
When viewing images on a monitor, we are adapted to the lighting conditions of our viewing environment as well as the monitor itself, which can be very different from the lighting ...
ECCV
2006
Springer
13 years 8 months ago
2006
Springer
Many previous works on photometric stereo have shown how to recover the shape and reflectance properties of an object using multiple images taken under a fixed viewpoint and variab...
FGR
2004
IEEE
13 years 8 months ago
2004
IEEE
In this paper, we introduce the concept of SelfQuotient Image (SQI) for robust face recognition under varying lighting conditions. It is based on the Quotient Image method [4][5] ...
CVPR
1996
IEEE
13 years 8 months ago
1996
IEEE
The appearance of a particular object depends on both the viewpoint from which it is observed and the light sources by which it is illuminated. If the appearance of two objects is...
ACCV
1998
Springer
13 years 8 months ago
1998
Springer
Abstract. This paper studies a statistical skin-color model and its adaptation. It is revealed that 1 human skin colors cluster in a small region in a color space; 2 the variance o...
WACV
2002
IEEE
13 years 9 months ago
2002
IEEE
The vision-based driver fatigue detection is one of the most prospective commercial applications of facial expression recognition technology. The facial feature tracking is the pr...
PG
2002
IEEE
13 years 9 months ago
2002
IEEE
Densely-sampled image representations such as the light field or Lumigraph have been effective in enabling photorealistic image synthesis. Unfortunately, lighting interpolation w...