C2CL: Contact to Contactless Fingerprint Matching

• URL: http://arxiv.org/abs/2104.02811v1
• Date: Tue, 6 Apr 2021 21:52:46 GMT
• Title: C2CL: Contact to Contactless Fingerprint Matching
• Authors: Steven A. Grosz, Joshua J. Engelsma, and Anil K. Jain
• Abstract summary: This paper presents an end-to-end automated system, called C2CL, comprised of a mobile finger photo capture app, preprocessing, and matching algorithms. experimental results on 3 publicly available datasets demonstrate, for the first time, contact to contactless fingerprint matching accuracy that is comparable to existing contact fingerprint matching systems.
• Score: 38.95044919159418
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Matching contactless fingerprints or finger photos to contact-based fingerprint impressions has received increased attention in the wake of COVID-19 due to the superior hygiene of the contactless acquisition and the widespread availability of low cost mobile phones capable of capturing photos of fingerprints with sufficient resolution for verification purposes. This paper presents an end-to-end automated system, called C2CL, comprised of a mobile finger photo capture app, preprocessing, and matching algorithms to handle the challenges inhibiting previous cross-matching methods; namely i) low ridge-valley contrast of contactless fingerprints, ii) varying roll, pitch, yaw, and distance of the finger to the camera, iii) non-linear distortion of contact-based fingerprints, and vi) different image qualities of smartphone cameras. Our preprocessing algorithm segments, enhances, scales, and unwarps contactless fingerprints, while our matching algorithm extracts both minutiae and texture representations. A sequestered dataset of 9,888 contactless 2D fingerprints and corresponding contact-based fingerprints from 206 subjects (2 thumbs and 2 index fingers for each subject) acquired using our mobile capture app is used to evaluate the cross-database performance of our proposed algorithm. Furthermore, additional experimental results on 3 publicly available datasets demonstrate, for the first time, contact to contactless fingerprint matching accuracy that is comparable to existing contact to contact fingerprint matching systems (TAR in the range of 96.67% to 98.15% at FAR=0.01%).

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