Apparatus and method for locating characters on a label

Details Apparatus and method for locating characters on a label Apparatus and method for locating characters on a label

1991-08-16

1993-03-30

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 61, 209583, G06K 936

Patent

active

051990849

ABSTRACT:
Locating and recognizing characters on a machine produced label, for example, is accomplished faster and more accurately by searching for first and second identifiable objects within first and second search windows, respectively. The first and second search windows are typically much smaller than the label or image being searched. The first object is the top portion of the label and the second object is the bottom portion of the label. Having located each object, a reference point is determined on each. From these two reference points, precise character or bar code locations can be predicted for reading the characters or bar codes printed on the label at predetermined locations. A character search window superimposed over each character at its estimated location is searched to read the character located thereat. If the first or second object could not be located, due to a torn label for example, an alternate object may be searched and a reference point located thereon.

REFERENCES:
patent: 3058093 (1962-10-01), Vernon et al.
patent: 3200373 (1965-08-01), Rainbow
patent: 3801775 (1974-04-01), Acker
patent: 3852715 (1974-12-01), Morimoto
patent: 4516265 (1985-05-01), Kizu et al.
patent: 4736109 (1988-04-01), Dvorzsak
patent: 4760247 (1988-07-01), Keane et al.
patent: 4809344 (1989-02-01), Peppers et al.
patent: 4822986 (1989-04-01), Guthmueller et al.
patent: 4855981 (1989-08-01), Kimura et al.
patent: 4916298 (1990-04-01), Raphael
patent: 4926492 (1990-05-01), Tanaka et al.
patent: 4948955 (1990-08-01), Lee et al.

Affiliated with

Also associated with

Rating

Apparatus and method for locating characters on a label does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for locating characters on a label, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for locating characters on a label will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1287118