Character region extracting method and apparatus capable of impl

Details Character region extracting method and apparatus capable of impl Character region extracting method and apparatus capable of impl

1988-05-02

1990-02-20

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 18, 382 48, G06K 934

Patent

active

049033115

ABSTRACT:
A character region extracting method adapted to character recognition comprises the following three steps. The first step is to segmentate a first region (BL1) from a document image by extracting projection of the document image in a first direction parallel to a character string and detecting a range in which the projection is continuous in a second direction perpendicular to the first direction. The range defines the first region. The second step is to segmentate a second region (sBL1) from the first region by extracting projection of the first region in the second direction and detecting a range in which the projection is continuous in the first direction. The range defines the second region. The third step is to segmentate a third region (BL2) from the second region by extracting projection of the second region in the first direction and detecting a range in which the projection is continuous in the second direction. The range defines the third region. The third region may be joined together so as to form a fourth region containing characters or a character string.

REFERENCES:
patent: 4364023 (1982-12-01), Isshiki et al.
patent: 4377803 (1983-03-01), Lotspiech et al.
patent: 4481665 (1984-11-01), Ota
patent: 4633502 (1986-12-01), Numba

Affiliated with

Also associated with

Rating

Character region extracting method and apparatus capable of impl does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Character region extracting method and apparatus capable of impl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Character region extracting method and apparatus capable of impl will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1622598