Method for confirming authenticity of sheet

Image analysis – Applications – Reading paper currency

Reexamination Certificate

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Reexamination Certificate

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06868173

ABSTRACT:
The truth of a paper type to be examined is judged by measuring, with respect to each of true paper types previously prepared, a plurality of types of characteristic amounts by a plurality of types of sensors for each of a plurality of portions for examination previously determined, analyzing principal components on the basis of obtained results of the measurement, to find an equation of straight line corresponding to the predetermined principal component, and producing reference data composed of a value relating to the predetermined principal component for the portion for examination on the basis of the foundation of straight line.

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patent: 5353905 (1994-10-01), Yokomori
patent: 5419423 (1995-05-01), Ishida et al.
patent: 5615760 (1997-04-01), Vaks
patent: 5757001 (1998-05-01), Burns
patent: 6014453 (2000-01-01), Sonoda et al.
patent: 6125986 (2000-10-01), Nagase
patent: 6327543 (2001-12-01), Nakajima et al.
patent: 51-90890 (1976-08-01), None
patent: 60-215293 (1985-10-01), None
patent: 62074188 (1987-04-01), None
patent: 04106692 (1992-04-01), None
patent: 8-12684 (1996-02-01), None
patent: 10162194 (1998-06-01), None
Nakata, “Pattern Recognition and its Application”, Japanese Language, pp. 21-28 (8 pgs).

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