Device and method for authentication of a document

Patent metadata

Field	Value
Publication number	US-2016018656-A1
Application number	US-201514805369-A
Country	US
Kind code	A1
Filing date	Jul 21, 2015
Priority date	Jul 21, 2014
Publication date	Jan 21, 2016
Grant date	—

Abstract

The invention relates to a method and a device ( 1 ) for authenticating information contained in a document ( 6 ), said device including
at least one imager configured for acquiring at least one image of an acquisition field, at least one light source, computer processing means configured for processing the image and for extracting therefrom data relating to the document,

said device being adapted so as to be mounted on the head of a user ( 10 ) so that its acquisition field ( 11 ) covers at least one portion of the field of vision ( 12 ) of the user ( 10 ), the light source being configured so as to emit in the acquisition field ( 11 ) of the imager, a light of at least one non-visible wavelength, the imager being adapted for allowing acquisitions at said wavelength and thus allowing acquisition at this wavelength of an image of a document ( 6 ) presented to the user ( 10 ) in the acquisition field of the imager. The invention also relates to the corresponding method.

First claim

1 . A method for authenticating a document, performed with a device for authentication of information contained in a document, said device including
at least one imager configured for acquiring at least one image of an acquisition field, at least one light source,
the device being adapted so as to be mounted on the head of a user so that its acquisition field covers at least one portion of the field of vision of the user, the light source being configured so as to emit in the acquisition field of the imager a light of at least one non-visible wavelength, the imager being adapted for allowing acquisitions at said wavelength and thus allow acquisition at this wavelength of an image of a document presented to the user in the acquisition field of the imager, the method comprising the steps according to which:
the light source emits light in a non-visible spectrum into the acquisition field towards a document presented to the user,
the imager acquires at least one image of the document illuminated by the light source and sends the image to a processing computer configured for processing the image and for extracting data relating to the document having a predetermined configuration in the document,
the processing computer performs on the image a detection of a security element in at least one wavelength out of the visible spectrum,
the document is authenticated or not on the basis of the detection or not of the security element.

2 . The method according to claim 1 , comprising
preliminary acquisition by the imager of an image of the document in the acquisition field, and detection of an machine readable zone of the document and extraction of the information contained in said machine readable zone.

3 . The method according to claim 2 , wherein the step for detecting a security pattern comprises the following sub-steps, from information contained in the machine readable zone:
extracting a zone of the image which may contain a security element, identifying in a database a reference element corresponding to said security element and comparing the zone of the image with the reference element.

4 . The method according to claim 2 , comprising steps according to which:
the data are retrieved in a database depending on information contained in the machine readable zone, and these data are displayed in the field of vision of the user by head-up display means.

5 . The method according to claim 2 , wherein the emission of light in a non-visible wavelength by the light source is conditioned by the reading of the machine readable zone.

6 . The method according to claim 1 , wherein the light emission in a non-visible wavelength by the light source is conditioned by a command from the user.

7 . An assembly for authentication of information contained in a document, said assembly including a device for authentication of information contained in a document, said device comprising
at least one imager configured for acquiring at least one image of an acquisition field, at least one light source,
wherein said device is adapted so as to be mounted on the head of a user so that its acquisition field covers at least one portion of the field of vision of the user, the light source being configured so as to emit in the acquisition field of the imager a light of at least one non-visible wavelength, the imager being adapted for allowing acquisitions at said wavelength and thus allow acquisition at this wavelength of an image of a document presented to the user in the acquisition field of the imager, and
wherein said assembly comprise a processing computer configured for processing the image and for extracting data relating to the document having a predetermined configuration in the document, and for detecting in the acquired image at said non-visible wavelength a security element, the document being authenticated or not on the basis of the detection or not of the security element.

8 . The device according to claim 7 , wherein the data having a predetermined configuration appear in alphanumerical form in the document.

9 . The device according to claim 8 , wherein the light source is configured for emitting in the infrared or ultraviolet domain.

10 . The device according to claim 9 , comprising at least:
a first light source configured for emitting light in the ultraviolet range in the field of acquisition of the imager; a second light source configured for emitting light in the infrared range in the field of acquisition of the imager.

11 . The device according to claim 7 , wherein the device comprises a frame adapted for maintaining the device on the head of the user by cooperating with said head.

12 . The device according to claim 7 , wherein the device comprises mounting means for mounting the device on a spectacle frame.

13 . The device according to claim 7 , further comprising head-up display means intended to be positioned in the field of vision of the user.

14 . The device according to claim 7 , comprising an accelerometer and/or a gyroscope, the measurements of which are taken into account for controlling the imager and/or the light source.

15 . The device according to claim 7 , further comprising a chip reader support adapted so as to be mounted on the hand of the user.

16 . A computer program product comprising program code instructions recorded on a medium which may be used in a computer for executing steps of the method according to claim 1 when said program is executed on a computer.

Assignees

• Morpho

Inventors

• Nguyen Eric
• Rieul Francois
• Couturier Lauriane
• Jarlegan Marie
• Chastel Pierre
• Bouatou Vincent

Classifications

• H04W12/33 Primary

  using wearable devices, e.g. using a smartwatch or smart-glasses · CPC title

• G02B27/0172 Primary

  characterised by optical features · CPC title

• G02B2027/0178

  Eyeglass type (eyeglass details G02C) · CPC title

• G02B2027/0138

  comprising image capture systems, e.g. camera · CPC title

• G06K9/00442

  Physics · mapped topic