Anti-counterfeit pattern detector and method

Details Anti-counterfeit pattern detector and method Anti-counterfeit pattern detector and method

1994-10-17

1996-07-02

Boudreau, Leo

Image analysis

Applications

Reading paper currency

382199, 382209, 382287, 382288, G06K 900

Patent

active

055331440

ABSTRACT:
An anti-counterfeit detector and method for identifying whether a platen image portion to be photocopied contains one or several pre-selected monetary note patterns. The detection is performed in a rotation and shift invariant manner. Specifically, the pattern can be of any orientation and at any location of the image. Moreover, it can be embedded in any complicated image background.

REFERENCES:
patent: 4153897 (1979-05-01), Yasuda et al.
patent: 5216724 (1993-06-01), Suzuki et al.

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