Morpho

Idemia Identity & Security France

Idemia Identity & Security

Safran Identity & Security

Carrus Gaming

Alain Rouh

Laurent Rostaing

Jean Beaudet

Benoit Malrat

Jean-Christophe Fondeur

Gilles Monteilliet

Martin Cottard

Elise Le Gouil

Pierre Gacon

Thibault Berger

Jeremy Nicolas Laurent Dura

Emine Krichen

Jérémy Dura

Jean-Noël Braun

Jérémy Nicolas Laurent Dura

Laurent Patrice Rostaing

A method for detecting a document fraud is disclosed. A first image of a first document and a second image of a second document are obtained. A procedure of detection of zones sensitive to document frauds are applied in the regions of the first image and of the second image registered on the first image. Each sensitive zone detected is then divided into a plurality of subparts. A measurement of dissimilarity is calculated between corresponding subparts from the first image and the registered second image. It is then determined whether the first document is identical to the second document from measurements of dissimilarity. If the first document is different from the second document, a level of difference is determined between the first and second documents according to a value representing a proportion of different subparts; and a fraud is detected when the level of difference is below a third predetermined threshold.

Method for detecting document fraud

A method of detecting attempted fraud against a system recognising the iris of the human eye includes generation of a first image of an iris using first means of image capture in a visible light spectrum, and generation of a second image of said iris using second means of image capture in a near infra-red spectrum. The method also includes determination of at least one characteristic of the first image as a function of respective optical characteristics of pixels of a plurality of pixels of this first image and determination of at least one characteristic of the second image determined as a function of respective luminous intensities of pixels of a plurality of pixels of this second image. As a function of these determined characteristics, a signal representative of suspected detection of attempted fraud is generated.

Method of detecting fraud of an iris recognition system

The invention relates to a method for analyzing a structured document likely to be deformed from a first image and a second image of the document, comprising steps of:

Method for analyzing a structured document likely to be deformed

A method for determining an apparent color value of pixels corresponding to a subpart of an object in the acquired image, including: estimating a geometric distortion model of the object in the acquired image compared with a reference model of the object; determining a position in the acquired image of the subpart and determining a zone of the acquired image, referred to as the reference zone, situated in a predetermined vicinity of the subpart, each pixel of the reference zone resulting from a projection in the acquired image of a zone of the reference model, referred to as a blank zone, the blank zone being associated with a predetermined color value in the reference model, the projection using the geometric distortion model; and determining an apparent color value of the pixels of the subpart, from a color value of at least one pixel of the reference zone.

Method for determining a colour value of an object in an image

An image correction method includes: estimating a 3D model of an object as when an imaging device takes an image of the object; calculating the light intensity of each point of a simulated image as it would be taken by the imaging device, using the estimated 3D model of the object, a model of illumination of the object illuminated by a lighting system that illuminates the object, a model of reflection on a surface of the object, and a model of the imaging device, to obtain a simulated image of the object; and correcting the taken image by modifying the light intensity of each point on the taken image or on at least one area of interest of the taken image, according to the light intensity of the corresponding point in the simulated image or the respective light intensities of points adjacent to the corresponding point in the simulated image.

Method for correcting an image of at least one object presented at a distance in front of an imaging device and illuminated by a lighting system and an image pickup system for implementing said method

The tracking method comprises, for at least a first image of the text having at least a first line of characters:

Method and a device for tracking characters that appear on a plurality of images of a video stream of a text

A device for use in identifying or authenticating a subject positioned in an acquisition volume on the basis of at least one biometric characteristic of the subject, the device including in succession, in offset manner along a camera placement axis: a first camera; a second camera; and a third camera; the optical axes of the first and second cameras forming between them an angle strictly less than 10&#xb0;, and the optical axis of the third camera intersecting the optical axes of the first and second cameras, the optical axes of the first and second cameras each forming an angle less than or equal to 5&#xb0; relative to a normal axis perpendicular to the camera placement axis.

Device for use in identifying or authenticating a subject

This invention relates to a method for identifying a sign on an image of a document that can be deformed comprising:

Method for identifying a sign on a deformed document

Provided is a method/system for taking, by an imaging device, one or more images of an object or a part of an object presented at a distance in front of the imaging device, the object being illuminated by a lighting system. The method/system may include: estimating a 3D model of the object as it will be at a predetermined time when taking the image by the imaging device; simulating, using the estimated 3D model, the illumination of the object as it will be at said time to obtain estimated images of the object in respectively a plurality of envisaged lighting modes of the lighting system; selecting a lighting mode of the lighting system from the estimated images; and controlling the lighting system to be in the selected lighting mode; and controlling the imaging device, at the time of the taking of the image of the object, to effect the taking.

Photography system and method including a system for lighting the scene to be shot

The present invention relates to a device () for positioning the face of a user relative to an image-capture apparatus (), the positioning device comprising a picture-taking device () arranged to supply horizontally-reversed images, a display screen () for displaying the reversed images and connected to the picture-taking device, and means for superposing on the images displayed on the screen at least one positioning reference mark () for the user, the positioning reference mark and the displayed images lying substantially in the same plane. The invention also provides a corresponding method and image-capture apparatus.

Growing community of inventors

Issy les Moulineaux, France

Alain Rouh