Method for ascertaining the authenticity of a document and device for carrying out such a method
AssigneeCypheme
InventorHugo Garcia-Cotte
Life of this patent
Estimating the term…
Abstract
A security element is applied to a document or an object in the form of a directly printed marking or in the form of a tag made of paper or another material, with or without an identifier. A user can take a picture of the marking or tag with a smartphone and then send the picture to a device including software provided with a recognition algorithm including neural networks. The device visualizes the fingerprint of the tag or marking, thus making it possible to ascertain the authenticity of the document or object. In order to establish the authenticity of the product protected by the device, the image, stored in a cloud or blockchain database, of the tag obtained after printing same or of the marking is compared with a new description.
Claims12
An authentication method comprising establishing a subsequent description of an authentication device comprising one or more visible elements having a random shape and/or position and comparing said description with an original description of said authentication device,
- wherein the authentication device includes a security element in the form of a tag or marking simultaneously comprising,
- a unique identifier either for a product or for a set of products or for identifying a printing master on a plate of a static printer of any category that can print by rotation multiple products with the same identifier, and
- intrinsic disruptors randomly arranged and with random forms, in two dimensions so as to be visible whatever an angle of picture shootings, wherein the intrinsic disruptors are colored fibers at bidimensional positions in a special paper or plastic, or the intrinsic disruptors are a non-reproducible random shape of two-dimensional stains presented by solidified and dried specific chemical varnish, and
- positioning markers which consist of a plurality of dots with geometric specific features for localizing an area, which includes the intrinsic disruptors, to be analyzed for authentication,
- and the method further comprises recognizing by an algorithm, from any picture shooting angle, the bidimensional printed pattern and its random components in said area including the intrinsic disruptors to be analyzed and localized thanks to said dots with geometric specific features.
Dependencies are inferred from the claim text.