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ICCV
2005
IEEE
14 years 4 months ago
Using Extended Light Sources for Modeling Object Appearance under Varying Illumination
In this study, we demonstrate the effectiveness of using extended light sources for modeling the appearance of an object for varying illumination. Extended light sources have a ra...
Imari Sato, Takahiro Okabe, Yoichi Sato, Katsushi ...
IJCV
2007
163views more  IJCV 2007»
13 years 10 months ago
Appearance Sampling of Real Objects for Variable Illumination
Abstract. The appearance of an object greatly changes under different lighting conditions. Even so, previous studies have demonstrated that the appearance of an object under varyin...
Imari Sato, Takahiro Okabe, Yoichi Sato
CVPR
2003
IEEE
15 years 23 days ago
Low-Dimensional Representations of Shaded Surfaces under Varying Illumination
The aim of this paper is to find the best representation for the appearance of surfaces with Lambertian reflectance under varying illumination. Previous work using principal compo...
Peter Nillius, Jan-Olof Eklundh
ACCV
2006
Springer
14 years 2 months ago
Effects of Image Segmentation for Approximating Object Appearance Under Near Lighting
Shading analysis of an object under near lighting is not an easy task, because the direction and distance of the light source vary over the surface of the object. Observing a small...
Takahiro Okabe, Yoichi Sato
PAMI
2007
184views more  PAMI 2007»
13 years 10 months ago
Appearance Characterization of Linear Lambertian Objects, Generalized Photometric Stereo, and Illumination-Invariant Face Recogn
Traditional photometric stereo algorithms employ a Lambertian reflectance model with a varying albedo field and involve the appearance of only one object. In this paper, we gene...
Shaohua Kevin Zhou, Gaurav Aggarwal, Rama Chellapp...