发明名称 |
AUTHENTICATION OF SECURITY DOCUMENTS, IN PARTICULAR OF BANKNOTES |
摘要 |
<p>There is described a method for checking the authenticity of security documents, in particular banknotes, wherein authentic security documents comprise security features (41-49; 30; 10; 51, 52) printed, applied or otherwise provided on the security documents, which security features comprise characteristic visual features intrinsic to the processes used for producing the security documents. The method comprises the steps of (i) acquiring a sample image (c0) of at least one region of interest (R.o.l.) of the surface of a candidate document to be authenticated, which region of interest encompasses at least part of the security features, (ii) digitally processing the sample image (c0) by performing a decomposition of the sample image (c0) into at least one scale sub-space containing high resolution details (d1 1,</p> |
申请公布号 |
WO2008146262(A2) |
申请公布日期 |
2008.12.04 |
申请号 |
WO2008IB52135 |
申请日期 |
2008.06.02 |
申请人 |
KBA-GIORI S.A.;LOHWEG, VOLKER;GILLICH, EUGEN;SCHAEDE, JOHANNES |
发明人 |
LOHWEG, VOLKER;GILLICH, EUGEN;SCHAEDE, JOHANNES |
分类号 |
G07D7/20;G07D7/00 |
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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