334 search results - page 32 / 67 » Diagonal principal component analysis for face recognition |
DOCENG
2003
ACM
14 years 3 months ago
2003
ACM
In this paper, we describe a comparative study on techniques of feature transformation and classification to improve the accuracy of automatic text classification. The normalizati...
TIFS
2008
13 years 10 months ago
2008
Performance of biometric-based recognition systems depends on various factors: database quality, image preprocessing, encoding techniques, etc. Given a biometric database and a se...
FGR
2008
IEEE
13 years 10 months ago
2008
IEEE
In this paper, we propose a novel homomorphic wavelet filtering based illumination transfer technique to change the dominant lighting of one face image (source face image) to anot...
ECCV
2002
Springer
15 years 8 days ago
2002
Springer
Principal ComponentAnalysis (PCA) has been successfully applied to construct linear models of shape, graylevel, and motion. In particular, PCA has been widely used to model the var...
CVPR
1998
IEEE
15 years 12 days ago
1998
IEEE
We have developed a computer vision system, including both facial feature extraction and recognition, that automatically discriminates among subtly different facial expressions. E...