Adjusting illumination for image lift

Details Adjusting illumination for image lift Adjusting illumination for image lift

1996-04-22

1997-12-23

Couso, Yon J.

Image analysis

Applications

Reading bank checks

382312, G06K 900

Patent

active

057013616

ABSTRACT:
Arrangement for lifting image of checks, with Xenon lamp, Fluorescent lamp or like source of stable-wavelength-output and CCPD Camera means selected to exhibit "close-to-human" spectral response plus a photopic filter, disposed upstream of the Camera and adapted to shift its received image-light spectrum in the direction of that which is optimal for the human-eye.

REFERENCES:
patent: 4084188 (1978-04-01), Gorog et al.
patent: 4417818 (1983-11-01), Weisner
patent: 4538182 (1985-08-01), Saito et al.
patent: 4547896 (1985-10-01), Ohtombe et al.
patent: 5063599 (1991-11-01), Concannon et al.
patent: 5136665 (1992-08-01), Inoue

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