Determination of vitality from a non-invasive biomedical measurement for use in fingerprint scanners |
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Authors: | Reza DerakhshaniAuthor Vitae Larry A HornakAuthor Vitae |
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Affiliation: | a Lane Department of Computer Science and Electrical Engineering, West Virginia University, P.O. Box 6109, Morgantown, WV 26506-6109, USA b Avaya Labs, Room 1B04, 233 Mt. Airy Road, Basking Ridge, NJ 0792, USA |
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Abstract: | Fingerprints are the oldest and most widely used biometrics for personal identification. Unfortunately, it is usually possible to deceive automatic fingerprint identification systems by presenting a well-duplicated synthetic or dismembered finger. This paper introduces one method to provide fingerprint vitality authentication in order to solve this problem. Detection of a perspiration pattern over the fingertip skin identifies the vitality of a fingerprint. Mapping the two-dimensional fingerprint images into one-dimensional signals, two ensembles of measures, namely static and dynamic measures, are derived for classification. Static patterns as well as temporal changes in dielectric mosaic structure of the skin, caused by perspiration, demonstrate themselves in these signals. Using these measures, this algorithm quantifies the sweating pattern and makes a final decision about vitality of the fingerprint by a neural network trained by examples. |
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Keywords: | Fingerprints Vitality Biometrics Neural networks Capacitive scanners Image processing |
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