发明名称 |
SECURITY DOCUMENT WITH MICROPERFORATIONS |
摘要 |
<p>A method for verifying the authenticity of a security document by means of a camera-equipped cellphone comprises steps of acquiring a transmission mode image and a reflection mode image of the security document. Transmitted light through a plurality of perforations in a substrate of the security document is evaluated by means of the cellphone. Then, a relative positioning of the perforations with respect to a printed security features is determined, and the security document is considered“authentic”, if the determined positions and the acquired images substantially correspond to pre-stored“templates”for the security document. The perforations are structured such that they are not visible to the naked eye of a human observer which makes it harder to counterfeit the security document.</p> |
申请公布号 |
EP2898484(A1) |
申请公布日期 |
2015.07.29 |
申请号 |
EP20120775122 |
申请日期 |
2012.09.21 |
申请人 |
ORELL FÜSSLI SICHERHEITSDRUCK AG |
发明人 |
EICHENBERGER, MARTIN;SAUTER, DIETER |
分类号 |
G07D7/20;G07D7/12 |
主分类号 |
G07D7/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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