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A new approach to unwrap a 3-D fingerprint to a 2-D rolled equivalent fingerprint

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3 Author(s)
Sara Shafaei ; Department of Electrical and Computer Engineering, University of Louisville, Louisville, KY, USA ; Tamer Inanc ; Laurence G. Hassebrook

For many years, fingerprints have been captured by pressing a finger against a paper or hard surface. This touch-based fingerprint acquisition introduces some problems such as distortions and deformations in the acquired images, which arise due to the contact of the fingerprint surface with the sensor platen, and degrades the recognition performance. A new touch-less fingerprint technology has been recently introduced to the market, which can address the problems with the contact-based fingerprint systems. In this paper, we propose a new algorithm for unwrapping the acquired 3-D scan of the subject's finger into a 2-D rolled equivalent image. Therefore, The resulting image can be matched with the conventional 2-D scans; it also can be used for matching unwrapped 3-D fingerprints among themselves with the 2-D fingerprint matching algorithms. The algorithm is based on curvature analysis of the 3-D surface. The quality of the resulting image is evaluated and analyzed using NIST fingerprint image software.

Published in:

Biometrics: Theory, Applications, and Systems, 2009. BTAS '09. IEEE 3rd International Conference on

Date of Conference:

28-30 Sept. 2009