Image analysis – Histogram processing – For setting a threshold
Patent
1981-05-18
1984-04-03
Boudreau, Leo H.
Image analysis
Histogram processing
For setting a threshold
382 14, 382 18, 382 34, 382 48, G06K 932
Patent
active
044412053
ABSTRACT:
An improved pattern recognition system is disclosed which converts rows and columns of digitized video signal elements indicative of light intensity falling on a camera into integrated signatures, one for each of two orthogonal directions. Signatures corresponding to effectively rotated images may also be provided. Portions of the signatures having the most useful information contained therein are selected by comparison with subsets of the total signatures in a teach mode. In a run mode, the thus selected sub signatures are compared with snapshot signatures of a target object, such as integrated circuit dice, for precise location of corresponding portions of the target object.
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Berkin George M.
Negin Michael
Boudreau Leo H.
Kulicke & Soffa Industries Inc.
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