Morpho

Idemia Identity & Security France

Sylvaine Picard

Michel Cruchaga

Joël-Yann Fourre

François Rieul

William Ketchantang

Alain Thiebot

Jean-Christophe Fondeur

Gilles Monteilliet

Francois Rieul

Aldo Maalouf

Aurélie Morin

Denis Dumont

Julien Doublet

Matthieu Darbois

Mokrane Malek

Michaël Verilhac

Stephane Revelin

Joel-Yann Fourre

Stéphane Revelin

The invention relates to a device for acquisition of images for a biometric system, which includes an optical assembly and at least one imager for acquisition of an image of an object to be analysed presented in front of the assembly at a non-determined distance from the latter. The assembly includes at least one diaphragm with a coded aperture. The optical assembly allows acquisition by the sensor(s) of an image of the object capable of being exploited to deduce therefrom the searched biometric information, and of an image of the object acquired via the coded aperture of the diaphragm. The device also includes a processing unit to determine the distance of the object to be analysed as a function of the image of the object acquired via the coded aperture of the diaphragm.

Optical acquisition device for biometric systems

A system for acquiring an image of veins of a finger includes a camera designed to acquire an image of said finger when it is passed in front of it, a lighting device designed to illuminate said finger and a control unit for controlling the illumination intensity of said lighting device. Also, at least one system measures the transmission power of said finger upstream of the camera with respect to the passage of said finger towards said camera, said control unit being designed to control the illumination intensity of said lighting device according to the transmission power measured by said measuring system. Additionally, a method for acquiring images of veins of a finger is provided.

System and method for acquiring images of veins of a finger

The invention relates to a device and to a method for validating whether an object is an element () of the human body, comprising at least the following steps: illuminating with at least one first light source () and with at least one second light source () an object that it is desired to validate is or is not a human body element; acquiring an image with an image sensor (), the pixels of said image being associated with at least two characteristic values of a first color component and of a second color component, respectively; implementing validating processing dependant on comparisons between the values of the second component of the pixels in a zone of interest of the image and values of the first component of said pixels; validating or not the authenticity of the object () depending on the result of the validating processing.

Method for validating the authenticity of an element of the human body

The invention relates to a method, for determining a distance between an object with respect to an imaging system, improving the reconstruction of images of objects imaged by an imaging system and improving the resolution of the images obtained.

Method for estimating the distance of an object from an imaging system

A method of detecting a venous network in a portion of a human body, the method comprising the steps of capturing an infrared image of said human body portion in order to reveal a venous network of said human body portion; analyzing contrast in the infrared image in order to determine contrast characteristics of the infrared image; and determining whether the human body portion is real on the basis of contrast characteristics determined in the infrared image and of contrast characteristics determined from reference human body portions. A method of biometric recognition with a prior stage of detecting whether a portion of a human body is real.

Method for detecting the reality of venous networks for the purposes of identifying individuals, and biometric recognition method

A method for segmenting fingers may include: a capture step during which the acquisition device captures an image of the fingers and of the sight; a computing step during which the processing unit computes the unrolled phase image from the image of the thus captured; a derivation step during which, for each pixel of the phase image thus computed, the processing unit computes the derivative of the phase along the isointensity axis of the sight; a regionalisation step during which the processing unit associates each pixel where the derivative of the phase has been computed with a region grouping all the adjoining pixels step by step where the derivative of the phase has the same polarity; and a recognition step during which the location of each finger is recognised from the analysis of the regions thus determined.

Method for segmenting fingers

The invention concerns an antifraud device () for validating the use of a real part of a body as an imprint-bearing substrate () and comprising:

Anti-fraud device

A device for capturing an image representing a print of a part of the body of a person, the capture device may include: a base layer; a reference electrode covering the base layer; electronic capsules fixed in the form of a matrix on the reference electrode, each electronic capsule consisting of a microcapsule filled with a liquid medium and particles with two different colors and opposite electrical charges; a support plate covering the electronic capsules and serving as a support for said part; a camera intended to take an image of the electronic capsules; and an active electrode intended to come into contact with said part and electrically connected to a voltage source delivering a non-zero electrical voltage.

Device for capturing an image representing a print of a part of the body of a person

A sensor for venous networks of a part of a living body, having

Sensor for venous networks of a part of a living body

The present invention relates to a method and device for obtaining an image of a crumpled document from an image of this document when it is crumpled. The method comprises a step of determining a three-dimensional geometric model of the surface of the crumpled document by triangulation of three-dimensional points defined from the pattern of a target extracted from the image of this document when it is crumpled; the method is characterized in that it comprises a step of determining a projection of the three-dimensional geometric model onto a so-called acquisition plane, by means of error minimization of this projection under constraints of preserving defined geometric characteristics in the vicinity of the three-dimensional points, and in that it comprises a step of superimposing the textures associated with the three-dimensional model onto the projection of this model thus determined. The present invention likewise relates to target patterns that make it possible to improve the quality of the image resulting from the method to be improved and/or to reduce the cost for computing said image.

Method and device for obtaining an image of a crumpled document from an image of said document when same is crumpled

The invention relates to a device () for identifying or authenticating a person by a print thereof, the identification or authentication device () including: a bearing means () including a transparent base () and a transparent block () supported by said base () on which the part of the body carrying the print is pressed, the surface of the transparent block () on which the part of the body carrying the print is pressed having a test chart (), the transparent block () being made of a flexible material that deforms and fits the shape of the part of the body carrying the print when the latter is pressed against the former, a means () for capturing an image of said print and the test chart () through said bearing means (), a means () for analyzing the image of the deformed test chart (), a means () for constructing a template of the print according to the print thus captured and the image of the test chart () thus analyzed, a means () for verifying the identity of the person or a means () for authenticating the person according to the template thus constructed.

Device for identifying a person by a print thereof

A method for processing at least an imprint image of an individual using a processing device that comprises an exhibition glass sheet having a surface for receiving said imprint. The method includes acquiring without contact at least one image of the imprint present in the space upstream from the said surface and which has not yet been in contact with it and detecting the contact between the imprint and the exhibition glass sheet; acquiring by contact at least one image of the imprint after contact with the exhibition glass sheet; and standardizing at least one of the contact-less images in proportions that are identical to those of one of the contact images by analysing at least one of the contact-less images and at least one of the contact images.

Method for processing an imprint image

A device for acquiring images of a print of at least a portion of a user's hand, the device comprising a stand defining an acquisition zone extending substantially in a plane, an optical acquisition member that is fastened to the stand to have a field of view covering the acquisition zone, and a processor unit connected to the acquisition member to process an image signal coming therefrom, wherein:

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Issy-les-Moulineaux, France

Sylvaine Picard