Using the fibre structure of paper to determine authenticity of the documents: Analysis of transmitted light images of stamps and banknotes.
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| Title: | Using the fibre structure of paper to determine authenticity of the documents: Analysis of transmitted light images of stamps and banknotes. |
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| Authors: | Takalo, Jouni1 jojuta@gmail.com, Timonen, Jussi1,2, Sampo, Jouni3,4, Rantala, Maaria4, Siltanen, Samuli4, Lassas, Matti4 |
| Source: | Forensic Science International. 2014, Vol. 244, p252-258. 7p. |
| Subjects: | Image analysis, Image transmission, Bank notes, Fraud, Parameter estimation, Anisotropy |
| Abstract: | A novel method is presented for distinguishing postal stamp forgeries and counterfeit banknotes from genuine samples. The method is based on analyzing differences in paper fibre networks. The main tool is a curvelet-based algorithm for measuring overall fibre orientation distribution and quantifying anisotropy. Using a couple of more appropriate parameters makes it possible to distinguish forgeries from genuine originals as concentrated point clouds in two- or three-dimensional parameter space. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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