FR3119905A3 - Authentication of non-planar markings - Google Patents

Authentication of non-planar markings Download PDF

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Publication number
FR3119905A3
FR3119905A3 FR2101549A FR2101549A FR3119905A3 FR 3119905 A3 FR3119905 A3 FR 3119905A3 FR 2101549 A FR2101549 A FR 2101549A FR 2101549 A FR2101549 A FR 2101549A FR 3119905 A3 FR3119905 A3 FR 3119905A3
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FR
France
Prior art keywords
authentication device
authentication
marking
deformation
view
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR2101549A
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French (fr)
Inventor
Franck Guigan
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Individual
Original Assignee
Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to FR2101549A priority Critical patent/FR3119905A3/en
Priority to PCT/FR2022/000010 priority patent/WO2022171935A1/en
Publication of FR3119905A3 publication Critical patent/FR3119905A3/en
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/44—Program or device authentication

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

Procédé d’authentification d’un dispositif d’authentification optique avec un moyen d’acquisition photographique comprenant une étape préalable d’analyse de la déformation, par l’analyse de la distorsion due à la perspective d’une pluralité de partie du dispositif d’authentification, à l’aide d’un graphisme dit graphisme d’analyse de la déformation du support. Dans une version préférée, le dispositif d’authentification comporte des parties de marquage 11 et 12 qui sont rigides et sont séparées par une partie souple 21 qui sert en même temps de graphisme permettant d’analyser la déformation du support. Ce graphisme est par exemple une grille souple. Figure de l’abrégé : Fig. 2Method for authenticating an optical authentication device with photographic acquisition means comprising a prior step of analyzing the deformation, by analyzing the distortion due to the perspective of a plurality of parts of the device authentication, with the aid of a graphic design known as graphic design for analyzing the deformation of the support. In a preferred version, the authentication device comprises marking parts 11 and 12 which are rigid and are separated by a flexible part 21 which at the same time serves as graphics making it possible to analyze the deformation of the support. This graphics is for example a flexible grid. Abstract Figure: Fig. 2

Description

Authentification de marquages non plansAuthentication of non-planar markings

L’invention est un procédé d’authentification de marquages non plans, comme ceux appliqués sur des emballages courbes comme des bouteilles ou sur des marquages souples.The invention is a method for authenticating non-flat markings, such as those applied to curved packaging such as bottles or to flexible markings.

On connait un grand nombre de procédés d’authentification de marquages de sécurité qui consistent à comparer l’image du marquage obtenue par un moyen d’acquisition avec une référence qui peut par exemple être une photographie prise antérieurement, ou à calculer à partir de cette image un résultat que l’on compare à une valeur déterminée.A large number of methods for authenticating security markings are known which consist in comparing the image of the marking obtained by an acquisition means with a reference which may for example be a photograph taken previously, or in calculating from this image a result that is compared to a determined value.

Problème techniqueTechnical problem

Lorsque la référence connue d’un marquage est celle d’une version plane de ce marquage, et que le marquage est ensuite déformé, l’apparence du marquage est différente. La simple comparaison de l’image du marquage obtenue par un moyen d’acquisition avec la référence ne permet pas son authentification.When the known reference of a marking is that of a flat version of this marking, and the marking is then deformed, the appearance of the marking is different. The simple comparison of the image of the marking obtained by an acquisition means with the reference does not allow its authentication.

L’invention sera bien comprise, et d’autres buts, avantages et caractéristiques de celle-ci apparaîtront plus clairement à la lecture de la description qui va suivre, laquelle est illustrée par les figures 1 et 2.The invention will be well understood, and other aims, advantages and characteristics thereof will appear more clearly on reading the description which follows, which is illustrated by figures 1 and 2.

représente un marquage sur lequel est superposée une grille d’analyse noire. represents a marking on which is superimposed a black analysis grid.

représente le marquage de la dont le support a été déformé parce qu’il est souple. Il s’agit d’un marquage tri-dimensionnel dont chaque partie présente un aspect différent non seulement parce qu’elle est déformée mais aussi parce que son contenu a varié en fonction du point de vue sous lequel on l’observe. represents the marking of the whose support has been deformed because it is flexible. It is a three-dimensional marking, each part of which has a different appearance not only because it is deformed but also because its content has varied depending on the point of view from which it is observed.

représente un marquage sur lequel est superposée une grille d’analyse noire, comprenant des parties 11 12 qui sont rigides, séparées par une partie 21 qui est souple. represents a marking on which is superimposed a black analysis grid, comprising parts 11 12 which are rigid, separated by a part 21 which is flexible.

La présente invention est un procédé d’authentification d’un dispositif d’authentification optique qui est un marquage en deux ou trois dimensions, mettant en œuvre un moyen d’acquisition photographique pour vérifier la compatibilité d’une image issue d’au moins une acquisition photographique avec une description de référence dudit dispositif d’authentification optique, caractérisé en ce qu’il comprend une étape préalable d’analyse de la distorsion due à la perspective d’au moins deux parties différentes du marquage, et la comparaison de chacune de ces parties avec une description de référence correspondant au même point de vue.The present invention is a method for authenticating an optical authentication device which is a two- or three-dimensional marking, implementing a means of photographic acquisition to check the compatibility of an image from at least one photographic acquisition with a reference description of said optical authentication device, characterized in that it comprises a preliminary step of analyzing the distortion due to the perspective of at least two different parts of the marking, and the comparison of each of these parts with a reference description corresponding to the same point of view.

Claims (10)

Procédé d’authentification d’un dispositif d’authentification optique qui est un marquage en deux ou trois dimensions, mettant en œuvre un moyen d’acquisition photographique pour vérifier la compatibilité d’une image issue d’au moins une acquisition photographique avec une description de référence dudit dispositif d’authentification optique, caractérisé en ce qu’il comprend une étape préalable d’analyse de la distorsion due à la perspective d’au moins deux parties différentes du marquage, et la comparaison de chacune de ces parties avec une description de référence correspondant au même point de vue.Method for authenticating an optical authentication device which is a two- or three-dimensional marking, implementing photographic acquisition means to check the compatibility of an image resulting from at least one photographic acquisition with a description reference of said optical authentication device, characterized in that it comprises a preliminary step of analyzing the distortion due to the perspective of at least two different parts of the marking, and the comparison of each of these parts with a description of reference corresponding to the same point of view. Procédé d’authentification selon la revendication 1 caractérisé en ce qu’il comporte une étape de redressement de la perspective d’une partie dont l’aspect a été distordu par la perspective.Authentication method according to Claim 1, characterized in that it comprises a step of straightening the perspective of a part whose appearance has been distorted by the perspective. Procédé d’authentification selon la revendication 1 ou la revendication 2 caractérisé en ce que le dispositif d’authentification comporte un graphisme dit d’analyse de déformation du support, dont la déformation permet de déterminer l’inclinaison d’au moins deux parties différentes du marquage.Authentication method according to Claim 1 or Claim 2, characterized in that the authentication device comprises graphics called analysis of the deformation of the support, the deformation of which makes it possible to determine the inclination of at least two different parts of the marking. Procédé d’authentification selon la revendication 3, caractérisé en ce que ledit graphisme d’analyse de déformation du support est une grille formant un quadrillage.Authentication method according to claim 3, characterized in that said support deformation analysis graphic is a grid forming a grid. Procédé d’authentification selon l’une quelconque des revendications précédentes caractérisé en ce que ledit dispositif d’authentification optique comporte des éléments dont l’apparence varie en fonction du point de vue sous lequel on les observe, et que l’on compare plusieurs parties avec leur description d’origine correspondant au même point de vue ou à un point de vue proche.Authentication method according to any one of the preceding claims, characterized in that the said optical authentication device comprises elements whose appearance varies according to the point of view from which they are observed, and that several parts are compared with their original description corresponding to the same point of view or a close point of view. Dispositif d’authentification permettant une authentification selon le procédé de la revendication 3, caractérisé en ce qu’il comporte un graphisme dit d’analyse de déformation du support, dont la déformation permet de déterminer l’inclinaison d’au moins deux parties différentes du marquage.Authentication device allowing authentication according to the method of claim 3, characterized in that it includes a so-called support deformation analysis graphics, the deformation of which makes it possible to determine the inclination of at least two different parts of the marking. Dispositif d’authentification selon la revendication 6, caractérisé en ce que ledit graphisme d’analyse de déformation du support est une grille formant un quadrillage.Authentication device according to Claim 6, characterized in that the said support deformation analysis graphic is a grid forming a grid. Dispositif d’authentification selon l’une quelconque des revendications 6 et 7, caractérisé en ce que deux desdites parties différentes du marquage (11 et 12) sont rigides et séparées par une partie souple (21).Authentication device according to either of Claims 6 and 7, characterized in that two of the said different parts of the marking (11 and 12) are rigid and separated by a flexible part (21). Dispositif d’authentification selon la revendication 8, caractérisé en ce que lesdites parties souples constituent ledit graphisme d’analyse de déformation du support.Authentication device according to Claim 8, characterized in that the said flexible parts constitute the said support deformation analysis graphics. Dispositif d’authentification selon l’une quelconque des revendications 6 à 9 caractérisé en ce qu’il comporte des éléments dont l’apparence varie en fonction du point de vue sous lequel on les observe.Authentication device according to any one of Claims 6 to 9, characterized in that it comprises elements whose appearance varies according to the point of view from which they are observed.
FR2101549A 2021-02-11 2021-02-18 Authentication of non-planar markings Withdrawn FR3119905A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2101549A FR3119905A3 (en) 2021-02-18 2021-02-18 Authentication of non-planar markings
PCT/FR2022/000010 WO2022171935A1 (en) 2021-02-11 2022-02-09 Deformed optical security devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2101549A FR3119905A3 (en) 2021-02-18 2021-02-18 Authentication of non-planar markings
FR2101549 2021-02-18

Publications (1)

Publication Number Publication Date
FR3119905A3 true FR3119905A3 (en) 2022-08-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR2101549A Withdrawn FR3119905A3 (en) 2021-02-11 2021-02-18 Authentication of non-planar markings

Country Status (1)

Country Link
FR (1) FR3119905A3 (en)

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