Method and apparatus for determining document authenticity

Details Method and apparatus for determining document authenticity Method and apparatus for determining document authenticity

G - Physics

07

D

G07D 7/12 (2006.01) A61N 1/18 (2006.01) G01J 1/02 (2006.01) G01J 3/00 (2006.01) G01J 5/02 (2006.01)

Patent

CA 2384112

A method and apparatus for verifying the authenticity of a document relative to a previously programmed document are disclosed. The method provides a broadband light source; illuminates a document with the light source; collects reflected light (104); converts it into a corresponding electrical signal or signals; digitizes the electrical signal (116); and prepares a spectral signature of the document for further analysis. The method also provides for comparing (120) a previously programmed and stored spectral signature to the spectral signature of a test document using a matching value to indicate whether the test document is authentic or not.

L'invention porte sur un procédé et appareil permettant de vérifier l'authenticité d'un document par rapport à celle d'un document préalablement programmé. Ledit procédé consiste: à éclairer un document à l'aide d'une source lumineuse à large bande; à recueillir la lumière réfléchie (104); à la convertir en signaux électriques correspondants; à numériser ces signaux (116); et à préparer une signature spectrale du document à des fins d'analyse ultérieure. Le procédé consiste également à comparer (120) une signature spectrale préalablement programmée et enregistrée, avec la signature spectrale d'un document à vérifier à l'aide d'un facteur de correspondance afin d'indiquer si le document vérifié est authentique ou non.

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