Letter mail address block locator system

Details Letter mail address block locator system Letter mail address block locator system

1987-04-17

1989-07-04

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 48, 382 50, G06K 900

Patent

active

048457612

ABSTRACT:
A system (14) for locating possible address information contained in a window area of a mail item (40) is provided. System (14) includes a source of illumination (60) and detectors (62) for sensing the reflectivity of the mail item (40). Circuitry (34) is provided for measuring the reflectivity from the mail item (40). Circuitry (36) is provided for determining the presence of a window on the mail item (40) and the coordinates of the detected window. Circuitry (26) is provided for selecting address information contained within a window located by the window detect circuitry (36).

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patent: 4468704 (1984-08-01), Stoffel
patent: 4475234 (1984-10-01), Nishijima
patent: 4584703 (1986-04-01), Hallberg

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