Idemia Identity & Security France

Morpho

Commissariat a L'energie Atomique Et Aux Energies Alternatives

Safran

Sagem Defense Securite

Sagem Securite

Idemia Public Security France

Joël-Yann Fourre

Mohammed Benwadih

Alain Thiebot

Jean Beaudet

François Rieul

Gilles Monteilliet

Marina Pouet

Jean-François Mainguet

Sylvaine Picard

Laurent Lambert

Jean-Christophe Fondeur

Emmanuel Bernard

Pierre Chastel

Florence Guillemot

Martin Cottard

Elise Le Gouil

Aurélie Morin

Jérôme Boutet

Christophe Serbutoviez

Mokrane Malek

Alexis Sireta

Benjamin Peyronneaud

Nicolas Prawitz

Patrick Bauban

Jeremy Delhomme

Grégoire Bezot

Rémy Chiu

Amélie Morin

A method for contactlessly capturing a biometric fingerprint of part of a hand of a user in an acquisition volume, the method including successively acquiring at least two two-dimensional images of the part of the hand, involving, between said successive acquisitions, modifying the orientation of an object plane by rotating about a pivot axis, the at least two images comprising imaged points of the part of the hand common to said at least two acquisitions, the object plane being modified as a function of a modification of a given current plane for positioning the part of the hand, corresponding to the average current plane in which said part of the hand is located, for each two-dimensional image acquisition, and merging the acquired two-dimensional images of a surface of the part of the hand that is to be depicted.

Method and system for contactlessly capturing a biometric fingerprint

A contactless biometric sensor, including an upper face above which, in use, a human body part which has dermatoglyphs is positioned, a lighting source configured to light the human body part through the upper face and an imager configured to acquire an image of the human body part through the upper face. The upper face of the sensor is provided with a mask having spatially variable light transmissivity.

Contactless biometric acquisition sensor and method

A method for biometric identification or authentication is described. An image of a body region is obtained. A truth map for said body region is obtained, said truth map associating, with each portion of a set of portions of said image of a body region, a probability that said portion belongs to a true body region. The image of the body region is then compared with a group of reference biometric data using the truth map. Finally, the identification or authentication of said body region is validated or invalidated in response to said comparison.

Method and device for biometric identification and/or authentication

A device for capturing a biometric print of a user, the user compartment including a frontal opening designed for the passage of part of a hand into said user compartment and a lateral opening allowing the passage of the thumb of the user's hand, the lateral opening extending as far as the frontal opening to form a continuous open space, the lateral opening being delimited in a direction of insertion of the user's hand into the user compartment by a user hand positioning stop.

Ergonomic biometric print capture device

Method for acquiring a fingerprint, performed by a device comprising an active thermal sensor when it is electrically supplied at a distance by a terminal, said sensor comprising a plurality of pixels, each pixel comprising a pyroelectric capacitor which, when it is subjected to a variation in temperature, generates electrical charges, each pixel being associated with a heating element adapted for heating said pixel and being connected to a reading circuit able to measure the electrical charges generated by said capacitor. The method relies on a taking into account of the heating element received by each pixel of said sensor () in order to determine when said pixel is able to provide () a signal that can be used for generating information representing a part of a fingerprint.

Method for acquiring fingerprints

Disclosed is a fraud detection method to authenticate that an object is formed of human skin. The method includes an object being placed on a home location on the surface of a propagation medium of a sensor, lighting the home location of the surface by a light source emitting light rays illuminating the home location forming with said surface a plurality of incidence angles encompassing a critical angle defined by the refraction index of the propagation medium and by a refraction index expected for authentic human skin, receipt by an imager of light rays from the surface, and acquisition of an image, and determining whether the object matches an authentic human finger based on the refraction index of said object, as a function of the spatial light distribution on the acquired image.

Authentication by optical index

The invention relates to a pixel matrix of a thermal pattern sensor comprising several rows and several columns of pixels, said matrix comprising:

Pixel array of a thermal pattern sensor, sensor associates with coil heating lines

The invention relates to a device for the biometric acquisition and processing of an image of a part of the human body with dermatoglyphs, comprising a contact surface () configured so that the part of the human body is affixed to this contact surface (), a light source () configured to project onto the part of the human body a light pattern having a sinusoidal modulation of light intensity in a main direction with a target frequency, an imager () configured to acquire an image, and an automated data processing system () configured to implement a fraud detection method and a biometric identity recognition method using a periodic component parameter representative of an amplitude of a sinusoidal oscillation of light intensity in the acquired image in accordance with the main direction at the target frequency.

Biometric acquisition and processing device and method

Disclosed is a semi-rigid enrolment case for a smart card, formed by folding and gluing an envelope-like cardboard blank of the dimensions of the card. The case includes an electrical circuit printed directly on the cardboard of an inner surface. The circuit includes contact studs connected to a power supply interface and arranged to connect electrical contacts of the card to the power supply interface when the card is inserted into the case. A biometric sensor of the card remains accessible to the user when it is out of the case for making the enrolment. Through-openings are made in the cardboard on either side of contact stud lines and allow forming independent flexible areas, providing better contact between the studs and the electrical contacts of the card.

Enrolment case for smart card

A method of recognizing individuals by means of at least one processor executing a recognition algorithm comprising the steps of:

Method and a device for recognizing an individual by biometric signature

A compact device for capturing an imprint of a body part working by total reflection with dark background. The device includes a plurality of optically coupled elements including: a first transparent plate including a top face on which the body part bearing the imprint to be imaged can rest; a light source; a screen opaque to light situated below the first transparent plate including a network of holes; a second transparent plate situated below the opaque screen; and a sensor capable of generating an imprint image situated below the second transparent plate; each transparent plate having a refractive index greater than a refractive index of air, and the light source being able to be positioned at the level of the screen to directly illuminate the top face or below the screen to illuminate the top face through the holes.

Device for capturing an imprint of a body part

A method and system for acquiring and analyzing fingerprints with fraud detection in which an image of a fingerprint of an object is formed and the object is irradiated by means of an energizing beam. A fluorescence emitted by the object in response to the energizing beam is analyzed and a validity criterion is established from the analysis of fluorescence and making it possible to discriminate biological tissue from other objects is verified. A region of interest, capable of characterizing the biological tissues is selected on the fingerprint image, where the region of interest defines a useful observation area on the object by correspondence, and the validity criterion is established from measurements of fluorescence intensity relative to the observation area only.

Method and system for acquiring and analysing fingerprints with fraud detection

Provided is a method of detecting fraud during use of a device for capturing an imprint of a body part using a principle of total internal reflection with dark field and including a transparent plate on which a body part to be verified is placed. The method includes: using the device to acquire a first imprint image with a lighting of the body part such that the whole surface of the body part in contact with the transparent plate returns light; using the device to acquire a least one second imprint image by illuminating the body part with a single LED; obtaining for each second imprint image an item of information representative of a light level re-emitted by the body part by using each image obtained; and comparing each item of information obtained with a reference item of information to validate that the body part is a true body part.

Method of detecting fraud

Disclosed is a checking device that is intended to check the authenticity of a fingerprint of a finger and which includes, among other things, a capture system for capturing an image of the finger and of the fingerprint, and acquisition means for acquiring a three-dimensional model of the finger. The checking device also includes means for determining the core on the image of the fingerprint, for locating the crown of the three-dimensional model, for determining the orientation and position of the end of the finger and for determining the relative positions of the end, the crown and the core. From these elements, the checking device can decide whether the fingerprint is real or false.

Device for checking the authenticity of a fingerprint

A lighting lens for a biometric measurement device comprises a paraboloidal or ellipsoidal reflector with symmetry of revolution, and a dioptric surface that has two different refractive power values in two perpendicular directions, said two refractive power values being negative or zero. Such a lens can be produced in the form of a block of transparent material and be used in a biometric measurement device. In particular, it makes it possible to capture skin prints as an image with an exposure time that is short.

Growing community of inventors

Courbevoie, France

Joël-Yann Fourre