Image analysis – Pattern recognition – Template matching
Patent
1995-01-20
1998-12-01
Mancuso, Joseph
Image analysis
Pattern recognition
Template matching
382135, 382137, G06K 900, G06K 964, G06K 968
Patent
active
058450084
ABSTRACT:
An image processing device is disclosed which can reliably detect documents which may not be copied, which has a very small probability of false positives, and which can handle newly issued documents which may not be copied. In addition, an image processing scheme is disclosed which would accurately obtain the location of a pattern indicating a document to be detected; which would extract that pattern; which would determine correctly whether it is the right pattern; and which would make it difficult for anyone to tamper with the pattern. To achieve this, a specified pattern is imprinted before use on a document which may not be copied, and a previously specified number of positioning marks and dummy marks which identify the location of the pattern may also be imprinted. The device is able to detect a wide variety of documents and perform the required processing at high speed.
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Katoh Mitsutaka
Ohmae Kouichi
Senga Masanori
Sonoda Shinya
Yanagida Masahito
Mancuso Joseph
Nguyen Ha Tran
Omron Corporation
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