Character recognition unit

Details Character recognition unit Character recognition unit

1974-09-13

1978-02-21

Boudreau, Leo H.

Communications: electrical

Digital comparator systems

3401463MA, G06K 912

Patent

active

040756050

ABSTRACT:
A method and system for automatic optical character recognition wherein a continuous flow of image data is processed at a scan rate high compared to the relative movement of the information-containing field across a sensor array. A two-dimensional array of photosensors is self-scanned to provide a continuous flow of binary character segment and void zone representations which are decoded by reference to a ROM to produce multi-bit feature codes characterizing unique relationships between line segments. For each row or column scanned, a representative feature code is produced with a sequence of such codes representing a complete scan of the sensor array. Successive sequences of feature codes are applied to a decision network having a multiplicity of nodes where each node is accessible to every other node by one state change to produce a representative output character code. The multiple character codes which may be produced during the movement of a single character across the sensor array is then processed by a decision circuit which generates a final character recognition signal.

REFERENCES:
patent: 3140466 (1964-07-01), Greanias et al.
patent: 3573730 (1971-04-01), Andrews et al.
patent: 3585592 (1971-06-01), Kiji et al.
patent: 3618016 (1971-11-01), Van Steenis
patent: 3755780 (1973-08-01), Sammon et al.
patent: 3832683 (1974-08-01), Nadler et al.
patent: 3868635 (1975-02-01), Shah et al.
patent: 3873972 (1975-03-01), Levine
patent: 3909785 (1975-09-01), Howells
patent: 3930229 (1975-12-01), Crane et al.
McMains et al., IBM Tech. Disclosure Bulletin, "Character Recognition Technique", vol. 15, No. 1, June 1972, pp. 15-17.

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