331 search results - page 16 / 67 » On optimizing subspaces for face recognition |
ICPR
2008
IEEE
14 years 9 months ago
2008
IEEE
In pattern recognition, feature vectors are occasionally subject to non-negative constraints. This characteristic can be expressed by a cone in feature vector space. In this paper...
ICPR
2004
IEEE
14 years 9 months ago
2004
IEEE
Most face recognition approaches either assume constant lighting condition or standard facial expressions, thus cannot deal with both kinds of variations simultaneously. This prob...
CVPR
2004
IEEE
14 years 10 months ago
2004
IEEE
We present a general framework for characterizing the object identity in a single image or a group of images with each image containing a transformed version of the object, with a...
ICPR
2008
IEEE
14 years 2 months ago
2008
IEEE
Traditional face superresolution methods treat face images as 1D vectors and apply PCA on the set of these 1D vectors to learn the face subspace. Zhang et al [7] proposed Two-dire...
CVPR
2007
IEEE
14 years 10 months ago
2007
IEEE
In this paper, we present novel ridge regression (RR) and kernel ridge regression (KRR) techniques for multivariate labels and apply the methods to the problem of face recognition...