Method and apparatus for automatic recognition of an image patte

Details Method and apparatus for automatic recognition of an image patte Method and apparatus for automatic recognition of an image patte

1981-04-23

1984-02-07

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 41, 382 48, G06K 932

Patent

active

044307500

ABSTRACT:
Proceeding from known methods for evaluating the similarity of image patterns by scanning an image field carrying the pattern and by comparing the same with a reference pattern, the degree of similarity of the mean values of the column of the scanning signals is identified with the assistance of feature addresses related to the pattern sought by a spatial shift of the scanning signals of the image field around a respective plurality of prescribable column points.

REFERENCES:
patent: 3618016 (1971-11-01), Van Steenis
patent: 3760356 (1973-09-01), Srivastava
patent: 3898617 (1975-08-01), Kashioka et al.
patent: 4091394 (1978-05-01), Kashioka et al.
patent: 4213117 (1980-07-01), Kembo et al.

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