Finger-Knuckle-Print Verification Based on Band-Limited Phase-Only Correlation

Authors:
Lin Zhang;Lei Zhang;David Zhang
Affiliations:
Biometrics Research Center, Department of Computing, The Hong Kong Polytechnic Univeristy, ;Biometrics Research Center, Department of Computing, The Hong Kong Polytechnic Univeristy, ;Biometrics Research Center, Department of Computing, The Hong Kong Polytechnic Univeristy,
Venue:
CAIP '09 Proceedings of the 13th International Conference on Computer Analysis of Images and Patterns
Year:
2009

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Abstract

This paper investigates a new automated personal authentication technique using finger-knuckle-print (FKP) imaging. First, a specific data acquisition device is developed to capture the FKP images. The local convex direction map of the FKP image is then extracted, based on which a coordinate system is defined to align the images and a region of interest (ROI) is cropped for feature extraction and matching. To match two FKPs, we present a Band-Limited Phase-Only Correlation (BLPOC) based method to register the images and further to evaluate their similarity. An FKP database is established to examine the performance of the proposed method, and the promising experimental results demonstrated its advantage over the existing finger-back surface based biometric systems.