Face recognition from unconstrained three-dimensional face images using multitask sparse representation

Samia Bentaieb; Abdelaziz Ouamri; Amine Nait-Ali; Mokhtar Keche

doi:10.1117/1.JEI.27.1.013008

19 January 2018 Face recognition from unconstrained three-dimensional face images using multitask sparse representation

Samia Bentaieb, Abdelaziz Ouamri, Amine Nait-Ali, Mokhtar Keche

Author Affiliations +

Journal of Electronic Imaging, Vol. 27, Issue 1, 013008 (January 2018). https://doi.org/10.1117/1.JEI.27.1.013008

Abstract

We propose and evaluate a three-dimensional (3D) face recognition approach that applies the speeded up robust feature (SURF) algorithm to the depth representation of shape index map, under real-world conditions, using only a single gallery sample for each subject. First, the 3D scans are preprocessed, then SURF is applied on the shape index map to find interest points and their descriptors. Each 3D face scan is represented by keypoints descriptors, and a large dictionary is built from all the gallery descriptors. At the recognition step, descriptors of a probe face scan are sparsely represented by the dictionary. A multitask sparse representation classification is used to determine the identity of each probe face. The feasibility of the approach that uses the SURF algorithm on the shape index map for face identification/authentication is checked through an experimental investigation conducted on Bosphorus, University of Milano Bicocca, and CASIA 3D datasets. It achieves an overall rank one recognition rate of 97.75%, 80.85%, and 95.12%, respectively, on these datasets.

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Samia Bentaieb, Abdelaziz Ouamri, Amine Nait-Ali, and Mokhtar Keche "Face recognition from unconstrained three-dimensional face images using multitask sparse representation," Journal of Electronic Imaging 27(1), 013008 (19 January 2018). https://doi.org/10.1117/1.JEI.27.1.013008

Received: 26 July 2017; Accepted: 13 December 2017; Published: 19 January 2018

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