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Proceedings Paper

Acquiring a 2D rolled equivalent fingerprint image from a non-contact 3D finger scan
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Paper Abstract

The use of fingerprints as a biometric is both the oldest mode of computer aided personal identification and the most relied-upon technology in use today. But current fingerprint scanning systems have some challenging and peculiar difficulties. Often skin conditions and imperfect acquisition circumstances cause the captured fingerprint image to be far from ideal. Also some of the acquisition techniques can be slow and cumbersome to use and may not provide the complete information required for reliable feature extraction and fingerprint matching. Most of the difficulties arise due to the contact of the fingerprint surface with the sensor platen. To attain a fast-capture, non-contact, fingerprint scanning technology, we are developing a scanning system that employs structured light illumination as a means for acquiring a 3-D scan of the finger with sufficiently high resolution to record ridge-level details. In this paper, we describe the postprocessing steps used for converting the acquired 3-D scan of the subject's finger into a 2-D rolled equivalent image.

Paper Details

Date Published: 17 April 2006
PDF: 8 pages
Proc. SPIE 6202, Biometric Technology for Human Identification III, 62020C (17 April 2006); doi: 10.1117/12.666127
Show Author Affiliations
Abhishika Fatehpuria, Univ. of Kentucky (United States)
Daniel L. Lau, Univ. of Kentucky (United States)
Laurence G. Hassebrook, Univ. of Kentucky (United States)

Published in SPIE Proceedings Vol. 6202:
Biometric Technology for Human Identification III
Patrick J. Flynn; Sharath Pankanti, Editor(s)

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