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Proceedings Paper

Illumination scheme for high-contrast, contactless fingerprint images
Author(s): Lirong Wang; Rania H. Abd El-Maksoud; José M. Sasian; Valorie S. Valencia
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Paper Abstract

Illumination is critical to achieve high-contrast, contactless fingerprint images. In this paper, we report results of fingerprint imaging experiments performed under different illumination conditions. We studied how polarization states, illumination wavelength, detection wavelength, and illumination direction influence the contrast of fingerprint images. Our research findings provide a selection rule for optimum illumination and a basis for us to construct an illuminator that generates uniform illumination and high-contrast contactless fingerprint images.

Paper Details

Date Published: 22 August 2009
PDF: 7 pages
Proc. SPIE 7429, Novel Optical Systems Design and Optimization XII, 742911 (22 August 2009); doi: 10.1117/12.828523
Show Author Affiliations
Lirong Wang, College of Optical Sciences, The Univ. of Arizona (United States)
Rania H. Abd El-Maksoud, College of Optical Sciences, The Univ. of Arizona (United States)
José M. Sasian, College of Optical Sciences, The Univ. of Arizona (United States)
Valorie S. Valencia, College of Optical Sciences, The Univ. of Arizona (United States)
Authenti-Corp (United States)


Published in SPIE Proceedings Vol. 7429:
Novel Optical Systems Design and Optimization XII
R. John Koshel; G. Groot Gregory, Editor(s)

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