Title:
PAPER SHEET IDENTIFYING METHOD AND PAPER SHEET IDENTIFYING DEVICE
Document Type and Number:
WIPO Patent Application WO/2004/081887
Kind Code:
A1
Abstract:
The density of each pixel of a transmission image of a bill is primarily differentiated (Fig.5, S21). The result of the differentiation is simply binarized by comparing it with a predetermined threshold to extract the outline of the bill (S22). The binary outline is Hough-transformed to extract the outline passing through the same point on the Hough-plane as the same line (S23). A rectangle formed by the lines corresponding to the point obtained by the Hough-plane is extracted (S24). If the number of dots in the part, not overlapping with any other parts, of the rectangle is not less than the predetermined threshold, the nonoverlapping part is cut out as the image of the bill (S26). The cut-out image is compared with a reference image, thereby identifying the kind of the bill.
Inventors:
YAMAMOTO ICHIRO (JP)
Application Number:
PCT/JP2003/003104
Publication Date:
September 23, 2004
Filing Date:
March 14, 2003
Export Citation:
Assignee:
FUJITSU LTD (JP)
FUJITSU FRONTECH LTD (JP)
YAMAMOTO ICHIRO (JP)
FUJITSU FRONTECH LTD (JP)
YAMAMOTO ICHIRO (JP)
International Classes:
G07D7/16; G07D7/20; (IPC1-7): G07D7/20
Foreign References:
| EP1011079A1 | 2000-06-21 | |||
| JP2002199179A | 2002-07-12 | |||
| JPH05182063A | 1993-07-23 |
Attorney, Agent or Firm:
Osuga, Yoshiyuki (Nibancho Bldg. 8-20, Nibanch, Chiyoda-ku Tokyo, JP)
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