Pattern processing system

Details Pattern processing system Pattern processing system

1976-12-09

1978-02-14

Boudreau, Leo H.

Communications: electrical

Digital comparator systems

3401463MA, G06K 912

Patent

active

040742318

ABSTRACT:
A pattern processing system comprising a filtering processor which enhances the edge of a character signal picked up by an image pickup tube, a comparator which binary-codes the character signal on the basis of threshold values of two different levels, a circuit which provides the logical product between outputs from the filtering processor and the comparator, and a filtering processor which subjects the output of the circuit to a filtering processing by the use of a smoothing filter.

REFERENCES:
patent: 3701095 (1972-10-01), Yamaguchi et al.
patent: 3973239 (1976-08-01), Kakumoto et al.
patent: 4005385 (1977-01-01), Joynson et al.
Andrews, "Digital Image Restoration: A Survey," Computer, May, 1974, pp. 36-45.

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