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Proceedings Paper

Mobile, contactless, single-shot, fingerprint capture system
Author(s): Gil Abramovich; Kevin Harding; Swaminathan Manickam; Joseph Czechowski; Vijay Paruchuru; Robert Tait; Christopher Nafis; Arun Vemury
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Paper Abstract

In some applications such as field stations, disaster situations or similar conditions, it is desirable to have a contactless, rugged means to collect fingerprint information. The approach described in this paper enables acceleration of the capture process by eliminating an otherwise system and finger cleanup procedure, minimizes the chance of the spread of disease or contaminations, and uses an innovative optical system able to provide rolled equivalent fingerprint information desirable for reliable 2D matching against existing databases. The approach described captures highresolution fingerprints and 3D information simultaneously using a single camera. Liquid crystal polarization rotators combined with birefringent elements provides the focus shift and a depth from focus algorithm extracts the 3D data. This imaging technique does not involve any moving parts, thus reducing cost and complexity of the system as well as increasing its robustness. Data collection is expected to take less than 100 milliseconds, capturing all four-finger images simultaneously to avoid sequencing errors. This paper describes the various options considered for contactless fingerprint capture, and why the particular approach was ultimately chosen.

Paper Details

Date Published: 14 April 2010
PDF: 12 pages
Proc. SPIE 7667, Biometric Technology for Human Identification VII, 766708 (14 April 2010); doi: 10.1117/12.850708
Show Author Affiliations
Gil Abramovich, GE Global Research (United States)
Kevin Harding, GE Global Research (United States)
Swaminathan Manickam, GE Global Research (United States)
Joseph Czechowski, GE Global Research (United States)
Vijay Paruchuru, GE Global Research (United States)
Robert Tait, GE Global Research (United States)
Christopher Nafis, GE Global Research (United States)
Arun Vemury, U.S. Dept. of Homeland Security (United States)

Published in SPIE Proceedings Vol. 7667:
Biometric Technology for Human Identification VII
B. V. K. Vijaya Kumar; Salil Prabhakar; Arun A. Ross, Editor(s)

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