A method of authenticating and/or identifying a security article including a first image includes superimposing at least partially the first image of the article with a second image. The second image may be produced by an electronic imager. The method further includes performing a relative movement between the first and second images so as to make it possible to observe an item of information relating to authentication and/or identification of the security article during the relative movement between the first and second images.

A method of authenticating and/or identifying a security article including a first image includes superimposing at least partially the first image of the article with a second image. The second image may be produced by an electronic imager. The method further includes performing a relative movement between the first and second images so as to make it possible to observe an item of information relating to authentication and/or identification of the security article during the relative movement between the first and second images.

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.

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.

The present invention proposes a method for producing an authenticable moiré shape that simultaneously moves and shows a beating effect. The method relies on a combination of the 1D or the 2D moiré and the level line moiré. When tilting a compound showing such a moiré, the moiré shape moves, its intensity levels change significantly but its shape remains the same and is recognizable. Embodiments comprise a base layer made of patterned metallic tiny shapes and a revealing layer made of a 1D array of cylindrical lenslets or of a 2D array of spherical or aspherical lenslets.

A method is for generating element templates for forming templates when checking value documents of a specified value document type having at least two specified manufacturing elements, which, where applicable, partially overlap each other, and the element templates correspond to the manufacturing elements. Digital training images of training value documents of the specified value document type and a digital reference image of a reference value document of the specified value document type are used, which each have pixels to which pixel data are respectively assigned.

A method is for generating element templates for forming templates when checking value documents of a specified value document type having at least two specified manufacturing elements, which, where applicable, partially overlap each other, and the element templates correspond to the manufacturing elements. Digital training images of training value documents of the specified value document type and a digital reference image of a reference value document of the specified value document type are used, which each have pixels to which pixel data are respectively assigned.

There is provided systems and methods for generating a multi-layered watermark. The watermark incorporating one or more symbols for placement on a document. The method including: positioning a base layer of the watermark at one or more locations on the document; positioning the one or more symbols overtop of at least a portion of the base layer; and positioning a braid layer of the watermark overtop of the ID, the braid layer and the base layer are substantially aligned, the braid layer including a copy of the base layer incorporating a pattern. The pattern can include one or more of discolorations, holes, and sections of increased opacity.

The present disclosure describes a method and computerized means for creating dynamically evolving moiré shapes on curved surfaces. The method applies geometrical transformations in order to obtain curvilinear moirés and creates the moirés on curved surfaces by applying mappings from planar space to 3D space. The method relies on the superposition of a base layer with base bands and of a revealing layer with sampling elements. The dimensions of the revealing layer sampling elements such as cylindrical or spherical lenses as well as the distances between the base and revealing layer surfaces are adapted to the space between neighbouring isoparametric lines that define the curved surface. The resulting moiré shapes evolve smoothly on the specified curved surface and show recognizable shapes such as words, letters, numbers, flags, logos, graphic motifs, drawings, clip art, and faces.

The present disclosure describes a method and computerized means for creating dynamically evolving moiré shapes on curved surfaces. The method applies geometrical transformations in order to obtain curvilinear moirés and creates the moirés on curved surfaces by applying mappings from planar space to 3D space. The method relies on the superposition of a base layer with base bands and of a revealing layer with sampling elements. The dimensions of the revealing layer sampling elements such as cylindrical or spherical lenses as well as the distances between the base and revealing layer surfaces are adapted to the space between neighbouring isoparametric lines that define the curved surface. The resulting moiré shapes evolve smoothly on the specified curved surface and show recognizable shapes such as words, letters, numbers, flags, logos, graphic motifs, drawings, clip art, and faces.