Image analysis – Histogram processing – For setting a threshold
Patent
1984-01-16
1986-06-03
Boudreau, Leo H.
Image analysis
Histogram processing
For setting a threshold
2504911, 356375, 358101, 382 8, 382 45, 382 46, G06K 932
Patent
active
045934061
ABSTRACT:
A computerized method and point location system apparatus is disclosed for ascertaining the center of a primitive or fundamental object whose shape and approximate location are known. The technique involves obtaining an image of the object, selecting a trial center, and generating a locus of points having a predetermined relationship with the center. Such a locus of points could include a circle. The number of points overlying the object in each quadrant is obtained and the counts of these points per quadrant are compared. From this comparison, error signals are provided to adjust the relative location of the trial center. This is repeated until the trial center overlies the geometric center within the predefined accuracy limits.
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Boudreau Leo H.
Hightower Judson R.
Libman George H.
Mancuso Joseph
Sopp Albert
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