EURion constellation

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Name EURion constellation
Ontology

EURion constellation (also Omron rings) is a pattern of symbols incorporated into a number of secure documents such as banknotes, checks, and ownership title certificates designs worldwide since about 1996. It is added to help imaging software detect the presence of such a document in a digital image. Such software can then block the user from reproducing banknotes to prevent counterfeiting using colour photocopiers.


It has since been supplanted by Counterfeit Deterrence System (CDS)


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