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CVPR
2003
IEEE
15 years 12 months ago
Texture Classification: Are Filter Banks Necessary?
We question the role that large scale filter banks have traditionally played in texture classification. It is demonstrated that textures can be classified using the joint distribu...
Manik Varma, Andrew Zisserman
CVPR
2007
IEEE
15 years 12 months ago
Isotropy, Reciprocity and the Generalized Bas-Relief Ambiguity
A set of images of a Lambertian surface under varying lighting directions defines its shape up to a three-parameter Generalized Bas-Relief (GBR) ambiguity. In this paper, we exami...
Ping Tan, Satya P. Mallick, Long Quan, David J. Kr...
ICCV
2007
IEEE
15 years 12 months ago
Toward Reconstructing Surfaces With Arbitrary Isotropic Reflectance : A Stratified Photometric Stereo Approach
We consider the problem of reconstructing the shape of a surface with an arbitrary, spatially varying isotropic bidirectional reflectance distribution function (BRDF), and introdu...
Neil G. Alldrin, David J. Kriegman
SIBGRAPI
2009
IEEE
15 years 4 months ago
A Study of the Effect of Illumination Conditions and Color Spaces on Skin Segmentation
—This work aims at investigating the influence of luminance information and environment illumination on skin classification. We explore Bayesian approaches to perform automatic...
Diogo Kuiaski, Hugo Vieira Neto, Gustavo B. Borba,...
CVPR
2000
IEEE
15 years 2 months ago
A Combined Feature-Texture Similarity Measure for Face Alignment under
We formulate face alignment as a model-based parameter estimation problem in this paper. First, we work within a framework that combines two separate subspace models to r epresent...
Lixin Fan, Kah Kay Sung