Authentication of security documents, in particula

专利名称：Authentication of security documents, in

particular of banknotes

发明人：Volker Lohweg,Eugen Gillich,Johannes

Schaede

申请号：US12602227申请日：20080602公开号：US08781204B2公开日：20140715

专利附图：

摘要：There is described a method for checking the authenticity of securitydocuments, in particular banknotes, wherein authentic security documents comprise

security features printed, applied or otherwise provided on the security documents,which security features comprise characteristic visual features intrinsic to the processesused for producing the security documents. The method comprises the steps of (i)acquiring a sample image of at least one region of interest of the surface of a candidatedocument to be authenticated, which region of interest encompasses at least part of thesecurity features, (ii) digitally processing the sample image by performing a

decomposition of the sample image into at least one scale sub-space containing highresolution details of the sample image and extracting classifying features from the scalesub-space, and (iii) deriving an authenticity rating of the candidate document based on theextracted classifying features.

申请人：Volker Lohweg,Eugen Gillich,Johannes Schaede

地址：Bielefeld DE,Bielefeld DE,Würzburg DE

国籍：DE,DE,DE

代理机构：Seager, Tufte & Wickhem LLC

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