Fingerprint verification with scratch feature for personal portable devices

SangWoo Sin; Dongju Li; Tsuyoshii Isshik; Hiroaki Kunieda

doi:10.1117/1.OE.51.2.027204

7 March 2012 Fingerprint verification with scratch feature for personal portable devices

SangWoo Sin, Dongju Li, Tsuyoshii Isshik, Hiroaki Kunieda

Author Affiliations +

Optical Engineering, Vol. 51, Issue 2, 027204 (March 2012). https://doi.org/10.1117/1.OE.51.2.027204

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.

Citation Download Citation

SangWoo Sin, Dongju Li, Tsuyoshii Isshik, and Hiroaki Kunieda "Fingerprint verification with scratch feature for personal portable devices," Optical Engineering 51(2), 027204 (7 March 2012). https://doi.org/10.1117/1.OE.51.2.027204

Published: 7 March 2012

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