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Optical Engineering

Fingerprint verification with scratch feature for personal portable devices
Author(s): SangWoo Sin; Dongju Li; Tsuyoshii Isshik; Hiroaki Kunieda
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Paper Abstract

Most conventional fingerprint verifications use minutiae information as features. However, some fingerprints have many scratches that can make minutiae extraction quite difficult to capture with enough accuracy. This paper presents a new fingerprint verification system that can cover normal and scratched fingerprints and can be implemented on personal portable devices such as smartphones. The system separates those fingerprints with serious scratches and extracts the scratches as an additional matching feature, thereby expanding the number and type of fingerprints accepted by the application. A simplified gabor filtering technique enables embedded systems to provide real-time verification for scratched fingerprints. In an evaluation of a fingerprint test database, in which 25% of the fingerprints have scratches, the new verification system reduced the zero false acceptance rate (FARzero) by approximately 71% compared with the simple minutiae method. Furthermore, the new system expanded coverage and increased performance.

Paper Details

Date Published: 7 March 2012
PDF: 11 pages
Opt. Eng. 51(2) 027204 doi: 10.1117/1.OE.51.2.027204
Published in: Optical Engineering Volume 51, Issue 2
Show Author Affiliations
SangWoo Sin, Tokyo Institute of Technology (Japan)
Dongju Li, Tokyo Institute of Technology (Japan)
Tsuyoshii Isshik, Tokyo Institute of Technology (Japan)
Hiroaki Kunieda, Tokyo Institute of Technology (Japan)

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