Secure photo carrying identification device, as well as...

G - Physics – 07 – C

Patent

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G07C 9/00 (2006.01)

Patent

CA 2393642

Means and a method for authenticating a photographic image (3) on an identification device (1), the identification device (1) being provided with: a photographic image of a person (3) and a microprocessor (8), the microprocessor (8) having: a) a processor (7), b) a memory (9) connected to the processor (7) and having stored authentication data, and c) interface means (5) connected to the processor (7) for communicating with an external device, wherein said photographic image (3) comprises steganographically hidden information, the content of which together with said authentication data allows authentication of said photographic image (3), the method having the following steps: a') scanning the photographic image (3) and generating image data, b') analyzing these image data in accordance with a predetermined image analysis procedure to derive said hidden information, and c') carrying out the authentication of the photographic image (3) based on the hidden information and the authentication data.

L'invention concerne des moyens et un procédé destinés à authentifier une image photographique (3) sur un dispositif d'identification (1), le dispositif d'identification (1) étant pourvu d'une image photographique d'une personne (3) et d'un microprocesseur (8). Ce microprocesseur comprend: a) un processeur (7), b) une mémoire (9) stockant des données d'authentification, reliée au processeur (7), et c) des moyens d'interface (5) reliés au processeur (7) pour communiquer avec un dispositif externe. L'image photographique (3) comprend des informations cachées selon des principes stéganographiques, le contenu de ces informations associé aux données d'authentification permettent l'authentification des images photographiques (3), le procédé consistant: a') à scanner l'image photographique (3) et à générer les données d'image, b') à analyser ces données d'image selon une procédure d'analyse d'image prédéfinie afin de dériver les informations cachées, et c') à réaliser l'authentification de l'image photographique fondée sur les informations cachées et les données d'authentification.

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