摘要:
The method for identifying a document printing plate comprises: a step of printing at least one document with said plate; a step of capturing, at a high-resolution, at least one image from at least one portion of a so-called document; a step of extracting a geometric feature from at least one captured image; a step of storing the extracted geometric feature for a candidate document for which an attempt is made to determine if said printing plate was used for the printing thereof; a step of capturing, at a high-resolution, an image of the portion of said candidate document corresponding to the document portion for which a geometric feature was stored; a step of extracting the geometric feature of the image of said candidate document corresponding to the stored geometric feature; and a step of determining if a measurement of correlations for said candidate document and the stored geometric feature is greater than a predetermined limit value.
摘要:
The invention relates to a method for securing access to a website which includes, in series: a step (202) of a first user terminal accessing said site; a step (206) of entering a message with the user terminal on a page of the site; a step (208) of transmitting the message to a server of the website; a step (210) of the server of the website encrypting the message in order to form a visible code; a step (212) of displaying the visible code on a display screen of the first user terminal; a step (216) of taking an image of the visible code using a second user terminal, optionally identical to the first user terminal; a step (218) of decrypting the code using the second user terminal; and a step (220) of providing the user with the message decrypted by the second user terminal.
摘要:
The invention relates to a device (100) for protecting an object (125), which comprises: a means (110, 120) for inputting a digital file representing a photograph that represents at least one part of the object; a means (135, 140) for encoding characteristic elements of the photograph into a matrix code (130) and a means (155) for printing the matrix code on or in said object. In certain embodiments, the photograph represents biometric data of a person, which are also visible on the object. In certain embodiments, the means for entering the digital file representing a photograph comprises an image sensor (120) configured to take an image of the object on which the matrix code is printed.
摘要:
The invention relates to a method for authenticating a tag, comprising: a step (205) of a communicating mobile terminal recording an image of at least a portion of a tag comprising at least a portion of an identifier; a step (210) of transmitting said identifier to a server; a step (215) of reading, from a memory of images of tags, the image of a tag having said identifier; a step (220) of transmitting, to said communicating mobile terminal, at least a portion of the image read from the memory; and a step (230) of displaying at least a portion of the transmitted image superimposed on an image recorded by said terminal.