G - Physics – 07 – D
Patent
G - Physics
07
D
G07D 7/20 (2006.01)
Patent
CA 2564786
The invention relates to a method for acceptance of a fibrous candidate support, made of paper, cardboard or a non-woven, as an authentic fibrous support, consisting of the following steps: comparison of the digital candidate signature of an authentic fibrous support previously recorded on a digital data support medium in order to emit a positive or negative acceptance decision, characterized in that the digital signatures are obtained from a structural characteristic obtained by scanning a volume of the support; the comparison determines, according to a statistic method, a similarity index between the digital candidate signature and the authentic digital signature, and compares said similarity index to a given acceptance threshold selected in such a way as to enable emission of a positive acceptance decision in the event that the digital candidate signature does not correspond exactly to the authentic digital signature that it is compared to.
L'invention concerne un procédé d'acceptation d'un support fibreux candidat, en papier, carton ou non tissé, en tant que support fibreux authentique, qui comprend les étapes suivantes : comparaison de la signature numérique candidate d'un support fibreux ô au moins une signature numérique authentique d'un support fibreux authentique préalablement enregistrée sur un support de données numériques, de façon ô émettre une décision positive ou négative d'acceptation, caractérisé en ce que : - les signatures numériques sont obtenues ô partir d'une caractéristique structurelle obtenue en scrutant un volume du support, - la comparaison détermine, selon une méthode statistique, un indice de similitude entre la signature numérique candidate et la signature numérique authentique, et compare cet indice de similitude avec un seuil d'acceptation donné, choisi pour permettre l'émission d'une décision positive d'acceptation dans des cas où la signature numérique candidate ne correspond pas exactement ô la signature numérique authentique avec laquelle elle est comparée.
Boutant Yann
Labelle David
Seux Herve
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Signoptic Technologies
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