Image analysis – Histogram processing – For setting a threshold
Patent
1989-11-08
1991-11-05
Moore, David K.
Image analysis
Histogram processing
For setting a threshold
364731, 382 16, G06K 936
Patent
active
050636049
ABSTRACT:
Image processing method and apparatus wherein candidate points are first selected in a log-polar image domain. The points may be selected by edge detection, thresholding, or any method suitable for identifying image points which are likely to lie on some feature of interest. For every candidate point there is drawn, also in the log-polar domain, a mirror image of a curve that represents the log-polar image of a straight line. There is accumulated a log-polar domain histogram of "hits" from the drawing process. Finally, a peak bin is selected. The position of the peak bin corresponds to the position of the recognized line.
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Mancuso Joseph
Moore David K.
Transitions Research Corporation
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