Detecting Disguise Attacks on Multi-spectral Face Recognition Through Spectral Signatures

Presentation attacks against Face Recognition System (FRS) have incrementally posed challenges to create new detection methods. Among the various presentation attacks, disguise attacks allow concealing the identity of the attacker thereby increasing the vulnerability of the FRS. In this paper, we present a new approach for attack detection in multi-spectral systems, where face disguise attacks are carried out. The approach is based on using spectral signatures obtained from a spectral camera operating in eight narrow spectral bands across the Visible (VIS) and Near Infra-Red (NIR) (530nm to 1000nm) spectrum and learning deeply coupled auto-encoders. The robustness of the proposed approach is validated using a newly collected spectral face database of subjects conducting both bona fide (i.e. real) presentations and disguise attack presentations. The database is designed to capture 2 different kinds of attacks from 54 subjects, amounting to a total number of 6480 samples. Extensive experiments carried on the multi-spectral face database indicate the robust performance of proposed scheme when benchmarked with three different state-of-the-art methods.