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dc.contributor.authorTakalo, Jouni
dc.contributor.authorTimonen, Jussi
dc.contributor.authorSampo, Jouni
dc.contributor.authorRantala, Maaria
dc.contributor.authorSiltanen, Samuli
dc.contributor.authorLassas, Matti
dc.date.accessioned2014-12-17T09:03:52Z
dc.date.available2014-12-17T09:03:52Z
dc.date.issued2014
dc.identifier.citationTakalo, J., Timonen, J., Sampo, J., Rantala, M., Siltanen, S., & Lassas, M. (2014). Towards a "fingerprint" of paper network; separating forgeries from genuine by the properties of fibre structure. In D. Burgess, G. Owen, H. Rana, R. Zamboni, F. Kajzar, & A. Szep (Eds.), <em>Optics and Photonics for Counterterrorism, Crime Fighting, and Defence X; and Optical Materials and Biomaterials in Security and Defence Systems Technology XI</em> (pp. 92530A). SPIE conference proceedings (9253). SPIE - International Society for Optical Engineering. <a href="http://dx.doi.org/10.1117/12.2066809">doi:10.1117/12.2066809</a>
dc.identifier.otherTUTKAID_63979
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/44926
dc.description.abstractA novel method is introduced for distinguishing counterfeit banknotes from genuine samples. The method is based on analyzing differences in the networks of paper fibers. The main tool is a curvelet-based algorithm for measuring the distribution of overall fiber orientation and quantifying its anisotropy. The use of a couple or more appropriate parameters makes it possible to distinguish forgeries from genuine samples as concentrated point clouds in a two- or three-dimensional parameter space. Furthermore, the techniques of making watermarks is investigated by comparing genuine and counterfeit e50 banknotes. In addition, the so-called wire markings are shown to differ significantly from each other in all of investigated banknotes.
dc.language.isoeng
dc.publisherSPIE - International Society for Optical Engineering
dc.relation.ispartofOptics and Photonics for Counterterrorism, Crime Fighting, and Defence X; and Optical Materials and Biomaterials in Security and Defence Systems Technology XI
dc.relation.ispartofseriesSPIE conference proceedings
dc.subject.otherforensic scienceen
dc.subject.othercounterfeit banknotesen
dc.subject.otherber networken
dc.subject.otherber orientationen
dc.subject.othercurveleten
dc.titleTowards a "fingerprint" of paper network; separating forgeries from genuine by the properties of fibre structure
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201412153511
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.contributor.oppiaineFysiikka
dc.type.urihttp://purl.org/eprint/type/ConferencePaper
dc.date.updated2014-12-15T16:30:18Z
dc.type.coarconference paper
dc.description.reviewstatuspeerReviewed
dc.relation.issn0277-786X
dc.type.versionacceptedVersion
dc.rights.copyright© SPIE, The International Society for Optics and Photonics.
dc.rights.accesslevelopenAccessfi
dc.relation.doi10.1117/12.2066809


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