Image analysis – Applications – Personnel identification
Patent
1995-10-23
1998-10-06
Kelley, Christopher S.
Image analysis
Applications
Personnel identification
356 71, 34082534, G06K 900
Patent
active
058189564
ABSTRACT:
The present invention is a miniature fingerprint reading device capable of extracting and accurately reproducing the ridge orientations on the skin of a fingertip. The illumination, focusing and reading elements follow the finger's curvature to provide a much larger surface area fingerprint comparable to conventional inking methods. The present invention virtually eliminates the occurrence of skewed images as there are restrictions to the angle at which any finger is read. Trapezoidal distortion is also eliminated as the fingerprint image is always at a fixed distance from the reading elements.
REFERENCES:
patent: 4120585 (1978-10-01), DePalma et al.
patent: 4340300 (1982-07-01), Ruell
patent: 4537484 (1985-08-01), Fowler et al.
patent: 4553837 (1985-11-01), Marcus
patent: 4613987 (1986-09-01), Keverian
patent: 4684802 (1987-08-01), Hakenwerth et al.
patent: 4783167 (1988-11-01), Schiller et al.
patent: 5177802 (1993-01-01), Fujimoto et al.
patent: 5448649 (1995-09-01), Chen et al.
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