Document imaging with illumination from lambertian surfaces

Details Document imaging with illumination from lambertian surfaces Document imaging with illumination from lambertian surfaces

1992-05-15

1998-10-20

Couso, Jose L.

Image analysis

Image sensing

G06K 700

Patent

active

058259457

ABSTRACT:
In a check processing array, an imaging/illumination arrangement for illuminating and imaging checks at one or several imaging sites as they are rapidly, continuously transported past two or more imaging stations, each station having, as its illumination source, a hollow Lambertian integrating vessel, housing lamps which project a highly uniform, diffuse Lambertian illumination-beam to its respective imaging site.

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patent: 5085517 (1992-02-01), Chadwick et al.
patent: 5131755 (1992-07-01), Chadwick et al.
patent: 5155776 (1992-10-01), Concannon et al.

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