Character recognition method

Details Character recognition method Character recognition method

1989-12-27

1992-04-28

Mancuso, Joseph

Image analysis

Histogram processing

For setting a threshold

382 25, 382 33, G06K 962

Patent

active

051094320

ABSTRACT:
A character recognition method includes steps of comparing input image data with character patterns of a predetermined dictionary and recognizing a character indicated by the input image data without requiring any special hardware in a conventional character recognition apparatus. Namely, the input image data is processed by using an unwanted-dot elimination mask and processed by using a positive mask and negative mask of each of the character patterns in the dictionary, and then a discrepancy ratio of each of the character patterns is calculated. Consequently, highly accurate character recognition can be carried out at a low cost without using special hardware, by decreasing the negative infludence of a flaw, a missing portion, dust, and the like.

REFERENCES:
patent: 2894247 (1959-07-01), Relis
patent: 3588821 (1971-06-01), Charles
patent: 3878509 (1975-04-01), Kikuchi
patent: 4027284 (1977-05-01), Hoshino et al.
patent: 4110737 (1978-08-01), Fuhey
patent: 4581760 (1986-04-01), Schiller et al.
patent: 4628533 (1986-12-01), Hongo et al.
patent: 4630308 (1986-12-01), Hongo
patent: 4817171 (1984-03-01), Stentiford
patent: 4872024 (1989-10-01), Nagai et al.
patent: 4872203 (1989-10-01), Asai et al.

Affiliated with

Also associated with

Rating

Character recognition method 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 recognition method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Character recognition method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1253468