Character recognition apparatus having means for compressing fea

Details Character recognition apparatus having means for compressing fea Character recognition apparatus having means for compressing fea

1988-05-23

1990-09-25

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 18, 382 21, 382 51, G06K 956

Patent

active

049598708

ABSTRACT:
A character recognition apparatus comprises an extracting part for extracting a feature of a character within an image data related to a document in a form of a feature vector having components which are histogram values of n degree peripheral pattern describing the feature of the character by distances from an arbitrary side of a character frame to each of first through nth detected contour of the character within the frame, a compression part for compressing the feature vector into a compressed feature vector having components which are quantized data, a dictionary which stores compressed feature vectors of standard characters, and a matching part for matching the compressed feature vector obtained from the compression part with each of the compressed feature vectors stored in the dictionary so as to output at least one candidate character corresponding to one of the standard characters described by a compressed feature vector having a minimum difference with the compressed feature vector obtained from the compression part out of the compressed feature vectors stored in the dictionary.

REFERENCES:
patent: 4103287 (1978-06-01), Frank
patent: 4163214 (1979-07-01), Komori et al.
patent: 4797944 (1989-01-01), Tanaka
patent: 4903312 (1990-02-01), Sato
patent: 4903313 (1990-02-01), Tachikawa

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-333766