Banner

3D face recognition based on normal map features using selected Gabor filters and linear discriminant analysis

Biometrics • 2015
Back
Publication Information
Authors S. F. Hafez, Mazen M. Selim
Keywords face recognition; preprocessing; normal maps; depth maps; linear discriminant analysis; LDA.
Journal Biometrics
Publisher Inderscience Enterprises Ltd.
Volume 7
Issue 4
Pages 373-390
publication.type International
Paper Link Open Link
Supplementary Materials Not Available
Abstract
In this paper, we present a new approach to enhance and improve the performance of automatic 3D face recognition system. The proposed method has been implemented through a preprocessing technique to align and normalise all images in the database based on eyes centres localisation using 2D normalised cross-correlation (2DNCC). Preprocessing 3D face data has
been implemented using depth map representation of the 3D data. The detected eyes centres and eyes distance (ED) have been used to segment and align 3D face images to produce a cropped face region of interest (ROI). The proposed approach extracted 3D face features using a set of selected orthogonal Gabor filters applied to normal map representation of the 3D face model. This approach minimises the feature vector extracted compared to systems that use complete Gabor filters bank. A further compression to the extracted features has been accomplished using linear discriminant analysis (LDA) before the
classification stage. Experimental results show that the proposed system is effective for both dimensionality reduction and good recognition performance when compared to current systems. The system has been tested using CASIA and Gavab 3D face images databases and achieved 98.35% and 85% recognition rates, respectively.