|ALPVISION S.A. Patent applications|
|Patent application number||Title||Published|
|20120243797||MEANS FOR USING MICROSTRUCTURE OF MATERIALS SURFACE AS A UNIQUE IDENTIFIER - The present application concerns the visual identification of materials or documents for tracking or authentication purposes.||09-27-2012|
|20110262536||METHOD TO AUTHENTICATE GENUINE TABLETS MANUFACTURED BY COMPRESSING POWDER - A method to authenticate genuine tablets manufactured by compressing powder between a punch/die set comprising the steps of: creating a microstructure on the surface of at least one of the face of the punch/die set; compressing the powder between the punch and the die; acquiring at least one reference image of the face of the punch/die set containing the microstructure or of a face of a tablet corresponding to the microstructure; acquiring at least one test image of a tablet to be authenticated; computing a level of similarity by an electronic device between the at least one test image and the at least one reference image; comparing the computed level with a threshold value so as to define if the acquired tablet is genuine.||10-27-2011|
|20080219503||MEANS FOR USING MICROSTRUCTURE OF MATERIALS SURFACE AS A UNIQUE IDENTIFIER - A method and apparatus for the visual identification of materials for tracking an object comprises parameter setting, acquisition and identification phases. The parameter setting phase comprises the steps of defining acquisition parameters for the objects. The acquisition phase comprises the steps of digitally acquiring two-dimensional template image of an object, applying a flattening function and generating downsampled template version of the flattened template and storing it in a reference database with the flattened template. The identification phase comprises the steps of digitally acquiring a snapshot image, applying the flattening function and generating one downsampled version, cross-correlating the downsampled version of the flattened snapshot with the corresponding downsampled templates of the reference database, and selecting templates according to the value of the signal to noise ratio, for the selected templates, cross-correlating the flattened snapshot image with the reference flattened template, and identifying the object by finding the best corresponding template.||09-11-2008|
Patent applications by ALPVISION S.A.