Image analysis – Pattern recognition – Template matching
Patent
1996-06-07
1998-05-12
Couso, Jose L.
Image analysis
Pattern recognition
Template matching
G06K 968
Patent
active
057518548
ABSTRACT:
An original image comprises a printed region on which a predetermined printed matter is realized and a background region on which no printed matter is realized. The shape of a peripheral zone in the original image comprises the shape of the background region, which shape exists particularly at the peripheral region of said original image. It is determined whether or not the original image comprises the special document by detecting the peripheral zone. Further, the original image has an outer-frame region, having a predetermined shape, at the peripheral region of the original image. The determination is carried out using a result of measuring the width of the outer-frame region. Further, the width of the outer-frame region comprises a width along a direction substantially perpendicular to a direction extending along the outline of the original image.
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Aida Midori
Fukuda Haruhiko
Hashiguchi Tadato
Hikita Toshiya
Ishigaki Kouji
Couso Jose L.
Ricoh & Company, Ltd.
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