Image analysis – Applications – Reading coins
Reexamination Certificate
2006-03-07
2006-03-07
Choobin, Barry (Department: 2625)
Image analysis
Applications
Reading coins
C382S169000, C382S172000, C194S328000
Reexamination Certificate
active
07010154
ABSTRACT:
A money identifying method and a device which can identify money with high precision and quickly by optimally binarizing a surface image of the money. The center coordinates and radius of subject coin C are extracted by a coin shape extraction section from the surface image of the subject coin C obtained by an area sensor, and an effective threshold calculation range is extracted by a threshold calculation range extraction section107from the extracted center coordinates and radius of the coin. Further, a density histogram is created by a histogram generation section108on the basis of the threshold calculation range, an optimum binary threshold value is calculated from the density histogram by a binary threshold calculation section according to a discriminating analysis, and the optimum binary threshold value is used to binarize an image for identifying the subject coin C.
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Choobin Barry
Kabushiki Kaisha Nippon Conlux
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