Data processing system

Details Data processing system Data processing system

1991-01-22

1995-07-25

Boudreau, Leo H.

Image analysis

Histogram processing

358522, 364736, G06K 900

Patent

active

054369827

ABSTRACT:
A data processing system including a normalizing unit for receiving a part of a plurality of pixels in a one-pixel column of image data in parallel and for magnifying or contracting the data in the vertical direction in the one pixel-column, and a transposing unit for transposing image data magnified or contracted in one direction obtained from the normalizing unit and for reprinting the transposed data to the normalizing unit. This invention is applicable to data processing by character recognition devices for reading characters of different sizes.

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patent: 3644890 (1972-02-01), Matthews
patent: 4776024 (1988-10-01), Katoh et al.
patent: 4776026 (1988-10-01), Ueyama
patent: 4910787 (1990-03-01), Umeda et al.
patent: 4958378 (1990-09-01), Bell
patent: 5048108 (1991-09-01), Basille et al.
patent: 5063385 (1991-11-01), Caschera
patent: 5202936 (1993-04-01), Kobiyama
"A Systolic Array for Preprocessings for Fast Character Recognition", Ohmachi et al, Feb. 1990, pp. 167-174; along with brief summary in English.
Patent Abstracts of Japan, vol. 13, No. 583, JP-1245361, Sep. 29, 1989.
Bourbakis, Microprocessing and Microprogramming, vol. 23, No. 1-5, Mar. 1988.
Wang et al., IEE Proceedings G. Electronic Circuits & Systems, vol. 134, No. 5, Oct., 1987, pp. 216-224.
Yamada et al., Proc. of the 9th Intern. Conf. on Pattern Recognition, Nov. 14-17, pp. 172-175.

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