Pattern recognition system

Details Pattern recognition system Pattern recognition system

1974-09-06

1976-03-02

Boudreau, Leo H.

Communications: electrical

Digital comparator systems

3401463AQ, G06K 912

Patent

active

039421694

ABSTRACT:
A character pattern recognition system is disclosed in which an unknown input pattern of character and a standard pattern of character are described and maintained in the form of a sequence of Freeman direction codes. One-to-multiple and multiple-to-one correspondence is permitted between the codes, to obtain a specific correspondence between them in which the sum of the difference between direction codes is minimum, so that the minimum value of code difference is used as a measure of determining the similarity between the two patterns.

REFERENCES:
patent: 3609685 (1971-09-01), Deutsch

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