| 摘要 |
<p>The present invention relates to methods and devices for verifying the authenticity of various securities and may be used for determining the authenticity of banknotes, financial documents, identity cards and other important documents. The method consists in that the security is transilluminated with a light flux passing from a light source to a receiver, is registered the feature of paper, is compared the registration result with the reference feature, obtained during the control test and stored in a database of reference features, the coincidence of signs confirming the authenticity of the security. As a protective element is used an image in the form of a projection on the receiver of patterns, formed by its nearest 1-6 layers of fibers inside the texture of paper, of the preselected control site, the dimensions of which exceed the transverse dimensions of the paper fibers at least twice. It is carried out the identification of security with the ability to locate the control area defined by the coordinates and/or typographical feature, the security is transilluminated with a light flux on the control area, is registered the control area image with a resolution of at least 1200 pixels per inch. In the alternative embodiment of the device for realization of the method for verifying the authenticity of securities, which is a mobile phone, the light source and the receiver being aligned in different parts of the body, the receiver is made in the form of a flat photosensor having a resolution of at least 1200 pixels per inch. In another alternative ambodiment the light source is located by the circuit of the photosensor, at the same time the device is equipped with a means for security pressing to the photosensor, reflecting the luminous flux, emitted by the source, on the photosensor. At the same time in both alternative embodiments of the device the protective layer of the photosensor is made in the form of a light-guiding plate with photoconductive elements, which transmit the luminous flux to the surface of the photosensitive layer. The result, achieved at the realization of the present invention, consists in providing the simplicity, high reliability and validity of authentification of securities.</p> |
