FACE VERIFICATION IN UNCONTROLLED LIGHT CONDITIONS OF STREET

Mariusz Leszczyński, Władysław Skarbek

Abstract

Impact of light conditions on face verification are considered for three linear discriminant feature extraction schemes. Two verification scenarios, the single image query and multi image query, were compared. The extraction algorithms are based on compositions of feature projections on global, intra and inter-class error subspaces: Linear Discriminant Analysis LDA, Dual Linear Discriminant Analysis DLDA, and their combination LDA+DLDA. The metrics for evaluation of the verification error is the Mahalanobis distance between normalized feature vectors. The normalization of feature vectors is justified with the upper bound by Fisher separation index for feature vectors. Experiments conducted on facial databases with complex background show the high performance of DLDA and DLDA+LDA verifiers with Equal Error Rate EER less than one percent. The degradation of results, when controlled light conditions are replaced by uncontrolled ones, is of factor two.

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Paper Citation


in Harvard Style

Leszczyński M. and Skarbek W. (2007). FACE VERIFICATION IN UNCONTROLLED LIGHT CONDITIONS OF STREET . In Proceedings of the Second International Conference on Signal Processing and Multimedia Applications - Volume 1: SIGMAP, (ICETE 2007) ISBN 978-989-8111-13-5, pages 417-421. DOI: 10.5220/0002142004170421


in Bibtex Style

@conference{sigmap07,
author={Mariusz Leszczyński and Władysław Skarbek},
title={FACE VERIFICATION IN UNCONTROLLED LIGHT CONDITIONS OF STREET},
booktitle={Proceedings of the Second International Conference on Signal Processing and Multimedia Applications - Volume 1: SIGMAP, (ICETE 2007)},
year={2007},
pages={417-421},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002142004170421},
isbn={978-989-8111-13-5},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Second International Conference on Signal Processing and Multimedia Applications - Volume 1: SIGMAP, (ICETE 2007)
TI - FACE VERIFICATION IN UNCONTROLLED LIGHT CONDITIONS OF STREET
SN - 978-989-8111-13-5
AU - Leszczyński M.
AU - Skarbek W.
PY - 2007
SP - 417
EP - 421
DO - 10.5220/0002142004170421