Bill discriminating device

Details Bill discriminating device Bill discriminating device

1987-11-03

1989-04-18

Yusko, Donald J.

Image analysis

Histogram processing

For setting a threshold

34082534, G06K 900

Patent

active

048233935

ABSTRACT:
A bill discriminating device which is able to carry out a bill discriminating operation at high speed and precision based on a reduced amount of processing data for bill-type discrimination by extracting and reading only characteristic regions of the bill. According to the present invention, bill discrimination can be carried out by: reading the picture image data output from an image sensor; roughly discriminating the type of bill from the length of the picture image data (corresponding to the width of the bill); reading position data and reference patterns of the characteristic regions corresponding to the type of bill; extracting picture image data (a characteristic pattern) corresponding to the characteristic regions from the position data; and, finally discriminating the type of bill by comparing the characteristic patterns with the reference patterns.

REFERENCES:
patent: 4179685 (1979-12-01), O'Maley
patent: 4464786 (1984-08-01), Nishito et al.
patent: 4490846 (1984-12-01), Ishida et al.

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