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Secure Multi-Spectral Hand Recognition System

Ramalho, M. ; Sanchit, S. ; Correia, P.L. ; Soares, L. D.

Secure Multi-Spectral Hand Recognition System, Proc European Signal Processing Conference EUSIPCO, Barcelona, Spain, Vol. ., pp. . - ., August, 2011.

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Abstract
This paper proposes a secure multimodal biometric recognition system with a multi-level fusion architecture. A multi-spectral cam-era is used to capture hand images in the visible and in the near-infrared (NIR) bands of the spectrum. The system uses four biome-tric traits from the user's hands: palmprint (PP), finger surface (FS), hand geometry (HG) and palm veins (PV), being the latter captured in the near-infrared band. In the feature extraction stage, three different techniques (i.e., Orthogonal Line Ordinal Features, Competitive Code and PalmCode) are implemented to extract fea-tures from the palmprint, finger surface and palm veins. The resulting features are then converted to binary in order to apply a secure template storage scheme, consisting of a cryptographic hash function combined with an error-correcting code. In the proposed system architecture, the hand geometry is used as a database indexing trait to reduce the search time needed for identification. Recognition results, obtained using a proprietary database that was built for that purpose, are presented for different combinations of the feature extraction techniques on the various biometric traits, as well as for different fusion methods.