Image analysis – Histogram processing – For setting a threshold
Patent
1986-04-07
1992-11-17
Boudreau, Leo H.
Image analysis
Histogram processing
For setting a threshold
382 55, 382 9, G06K 946
Patent
active
051649969
ABSTRACT:
An alphanumeric character is recognized by optically scanning that character, detecting the occurrence of predetermined geographical features in the scanned image, comparing the detected geographical features to a store of particular geographical features which identify respective alphanumeric characters, and identifying the scanned image as the alphanumeric character having those geographical features to which the detected geographical features favorably compare. The aforementioned geographical features comprise lagoons (formed as enclosed areas) and bays (formed as open areas). The types of bays and lagoons, as well as the relative positioning of such bays and lagoons with respect to each other, characterize the respective alphanumeric characters. By detecting the bays and lagoons and relative positions thereof in the scanned image, the identity of that image is ascertained.
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Boudreau Leo H.
Pitchenik David E.
Scolnick Melvin J.
Whisker Robert
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