Feature space reduction for face recognition with dual linear discriminant analysis

Authors:
Krzysztof Kucharski;Władysław Skarbek;Mirosław Bober
Affiliations:
Institute of Radioelectronics, Warsaw University of Technology, Poland;Institute of Radioelectronics, Warsaw University of Technology, Poland;Visual Information Laboratory, Mitsubishi Electric, Guildford, UK
Venue:
CAIP'05 Proceedings of the 11th international conference on Computer Analysis of Images and Patterns
Year:
2005

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Abstract

Linear Discriminant Analysis (LDA) is widely known feature extraction technique that aims at creating a feature set of enhanced discriminatory power. It was addressed by many researchers and proved to be especially successful approach in face recognition. The authors introduced a novel approach Dual LDA (DLDA) and proposed an efficient SVD-based implementation controlled by two parameters. In this paper DLDA is analyzed from the feature space reduction point of view and the role of the parameters is explained. The comparative experiments conducted on facial database consisting of nearly 2000 individuals show superiority of this approach over class of feature selection methods that choose the features one by one relying on classic statistical measures.