Paper Info
Title
Photometric Normalization For Face Recognition Using Local Discrete Cosine Transform
Abstract
Variations in illumination is one of major limiting factors of face recognition system performance. The effect of changes in the incident light on face images is analyzed, as well as its influence on the low frequency components of the image. Starting from this analysis, a new photometric normalization method for illumination invariant face recognition is presented. Low-frequency Discrete Cosine Transform coefficients in the logarithmic domain are used in a local way to reconstruct a slowly varying component of the face image which is caused by illumination. After smoothing, this component is subtracted from the original logarithmic image to compensate for illumination variations. Compared to other preprocessing algorithms, our method achieved a very good performance with a total error rate very similar to that produced by the best performing state-of-the-art algorithm. An in-depth analysis of the two preprocessing methods revealed notable differences in their behavior, which is exploited in a multiple classifier fusion framework to achieve further performance improvement. The superiority of the proposal is demonstrated in both face verification and identification experiments.
Year
DOI
Venue
2013
10.1142/S0218001413600057
INTERNATIONAL JOURNAL OF PATTERN RECOGNITION AND ARTIFICIAL INTELLIGENCE
Keywords
Field
DocType
Face recognition, illumination variations, photometric normalization, local discrete cosine transform
Computer vision,Facial recognition system,Normalization (statistics),Pattern recognition,Discrete cosine transform,Preprocessor,Smoothing,Invariant (mathematics),Artificial intelligence,Logarithm,Mathematics,Performance improvement
Journal
Volume
Issue
ISSN
27
3
0218-0014
Citations 
PageRank 
References 
2
0.35
22
Authors
4
Name
Order
Citations
PageRank
Heydi Mendez Vazquez1917.10
J. Kittler2143461465.03
Chi-ho Chan319212.63
Edel Garcia-Reyes49512.84