Sciweavers

CVPR
2012
IEEE
11 years 6 months ago
Accidental pinhole and pinspeck cameras: Revealing the scene outside the picture
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...
Antonio Torralba, William T. Freeman
TIM
2010
214views Education» more  TIM 2010»
12 years 11 months ago
Image-Quality-Based Adaptive Face Recognition
The accuracy of automated face recognition systems is greatly affected by intraclass variations between enrollment and identification stages. In particular, changes in lighting con...
Harin Sellahewa, Sabah Jassim
ICIP
2010
IEEE
13 years 2 months ago
Maximizing intra-individual correlations for illumination-insensitive face recognition
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 ...
Hu Han, Shiguang Shan, Xilin Chen, Wen Gao
JEI
2006
107views more  JEI 2006»
13 years 4 months ago
Color appearance in high-dynamic-range imaging
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 ...
Ahmet Oguz Akyüz, Erik Reinhard
ECCV
2006
Springer
13 years 7 months ago
The 4-Source Photometric Stereo Under General Unknown Lighting
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...
Chia-Ping Chen, Chu-Song Chen
FGR
2004
IEEE
154views Biometrics» more  FGR 2004»
13 years 7 months ago
Face Recognition under Varying Lighting Conditions Using Self Quotient Image
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] ...
Haitao Wang, Stan Z. Li, Yangsheng Wang
CVPR
1996
IEEE
13 years 8 months ago
What is the set of images of an object under all possible lighting conditions?
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...
Peter N. Belhumeur, David J. Kriegman
ACCV
1998
Springer
13 years 8 months ago
Skin-Color Modeling and Adaptation
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...
Jie Yang, Weier Lu, Alex Waibel
WACV
2002
IEEE
13 years 9 months ago
Active Facial Tracking for Fatigue Detection
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...
Haisong Gu, Qiang Ji, Zhiwei Zhu
PG
2002
IEEE
13 years 9 months ago
Lighting Interpolation by Shadow Morphing Using Intrinsic Lumigraphs
Densely-sampled image representations such as the light field or Lumigraph have been effective in enabling photorealistic image synthesis. Unfortunately, lighting interpolation w...
Yasuyuki Matsushita, Sing Bing Kang, Stephen Lin, ...