Fingerprint image apparatus

Details Fingerprint image apparatus Fingerprint image apparatus

1991-10-24

1994-01-11

Moore, David K.

Image analysis

Histogram processing

For setting a threshold

382 47, 382 59, 382 65, 358205, 358408, 358473, 358497, G06K 942, G06K 922, G06K 920, H04N 306

Patent

active

052789160

ABSTRACT:
A fingerprint image system includes a television camera in a cabinet pivotable between two positions where it views different surfaces on which an image can be placed. In one position it sends a fingerprint image at five times magnification to a printer and a monitor. In the other position it sends the image at actual size to the printer and monitor. A remote, hand-held camera, adapted to view fingerprints directly on surfaces, includes a light shield to prevent ambient light from falling on the fingerprint and light sources, such as a filtered light to cause the fingerprint to fluoresce or colored light to enhance the image.

REFERENCES:
patent: 3584958 (1971-06-01), Miller et al.
patent: 4588254 (1986-05-01), Menke et al.
patent: 4792226 (1988-12-01), Fishbine et al.
patent: 4794260 (1988-12-01), Asano et al.
patent: 4947261 (1990-08-01), Ishikawa et al.
patent: 4962430 (1990-10-01), Hiroki et al.
patent: 5054090 (1991-10-01), Knight et al.

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