Abstract: A method for authentication or identification of an individual, comprising the implementation by data processing means (11) of a terminal (1) of the following steps: (a) Obtaining of a visible image, an infrared image and a depth image on each of which a biometric feature of said individual appears; (b) Selection of at least one of said visible images, infrared image and depth image depending on the ambient lighting conditions; (c) Detection of said biometric feature of the individual in each image selected; (d) Fusion of the biometric feature(s) detected; and, (e) Authentication or identification of said individual on the basis of the result of the fusion of the biometric feature(s) detected.

Abstract: A method for authentication or identification of an individual, comprising the implementation by data processing means (11) of a terminal (1) of the following steps: (a) Obtaining of a visible image, an infrared image and a depth image on each of which a biometric feature of said individual appears; (b) Selection of at least one of said visible images, infrared image and depth image depending on the ambient lighting conditions; (c) Detection of said biometric feature of the individual in each image selected; (d) Fusion of the biometric feature(s) detected; and, (e) Authentication or identification of said individual on the basis of the result of the fusion of the biometric feature(s) detected.

Abstract: The invention relates to a method for biometric processing of images of part of the human body comprising at least one finger, said method being performed by a sensor, and wherein an emissive screen (1) displays at least one first display pattern to light said part of the human body and an imager (2) acquires at least one first image of said part of the human body; from this first image, the automated data-processing system determines at least one second display pattern different to the first display pattern; the emissive screen (1) displays at least the second pattern to light said part of the human body and the imager (2) acquires at least one second image of said part of the human body; a biometric processing being performed on a final image constructed from at least the second image.

Abstract: A method for characterizing material in which a surface is formed, by analysis of speckles generated on the surface by a coherent light beam by performing the computation of an autocorrelation function of the light intensity on the image and computation of the value of at least one criterion set up from said function, setting up an autocorrelation matrix of the light intensity of the image, computation of the discrete cosine transform of said matrix, and computation of the value of a characterization criterion such as the average on the image of the matrix trace obtained by the discrete cosine transform of the autocorrelation matrix, and computation of the value of at least one representative criterion of a phase shift distribution of the light beams diffused by the surface, said computation comprising computation of a wavelet transform of the image, and computation of the value of at least one criterion from the following group: average of the phases of the wavelet coefficients on the image, or standard devi

Abstract: The invention relates to a method for biometric processing of images of part of the human body comprising at least one finger, said method being performed by a sensor, and wherein an emissive screen (1) displays at least one first display pattern to light said part of the human body and an imager (2) acquires at least one first image of said part of the human body; from this first image, the automated data-processing system determines at least one second display pattern different to the first display pattern; the emissive screen (1) displays at least the second pattern to light said part of the human body and the imager (2) acquires at least one second image of said part of the human body; a biometric processing being performed on a final image constructed from at least the second image.

Abstract: A decision device for deciding whether an eye having a macula and an optical axis is real or false includes: lighting means emitting an infrared flux towards the eye along an entry axis; an infrared capture means for capturing an image of the eye along an exit axis, the entry and exit axes being aligned with the optical axis so that the macula illuminated by the lighting means under the incidence of the entry axis is seen by the capture means; processing means for detecting, on an image captured by the capture means, whether a peripheral zone representing the iris exists and whether a central zone in the peripheral zone, the color of which is representative of the macula existence, exists, and for delivering information representing this detection; and decision means for deciding whether the eye is real or false according to the information delivered by the processing means.

Abstract: The invention proposes a method for characterizing material in which a surface is formed, comprising the steps of: projecting a coherent light beam onto the surface to generate on said surface speckles resulting from interferences of the light beams diffused by said surface, acquiring an image of said surface on which the speckles appear, processing said image to compute at least one characterization criterion of the material, and from criteria, determining the material constituting the surface, in which the processing step of the image comprises: computation of an autocorrelation function of the light intensity on the image and computation of the value of at least one criterion set up from said function, and computation of the value of at least one criterion representative of a phase shift distribution of the light beams diffused by the surface.

Abstract: A decision device for deciding whether an eye having a macula and an optical axis is real or false includes: lighting means emitting an infrared flux towards the eye along an entry axis; an infrared capture means for capturing an image of the eye along an exit axis, the entry and exit axes being aligned with the optical axis so that the macula illuminated by the lighting means under the incidence of the entry axis is seen by the capture means; processing means for detecting, on an image captured by the capture means, whether a peripheral zone representing the iris exists and whether a central zone in the peripheral zone, the colour of which is representative of the macula existence, exists, and for delivering information representing this detection; and decision means for deciding whether the eye is real or false according to the information delivered by the processing means.

Abstract: Detecting a true face includes: capturing a parallel image of a face captured by a camera having a filter polarizing parallel to a polarization direction and an orthogonal image of the face captured by a camera's filter polarizing orthogonally to the polarization direction; computing a difference image from difference between the parallel and orthogonal images; filtering the difference image in wavelet packets on 5 levels, eliminating “low” resolution levels; dividing the filtered image into sub-images; the filtered image and each sub-image undergoes: a Fourier or discreet cosine transformation; and modelling during which the frequency decrease profile is modelled by a model of the power type (a.

Abstract: Detecting a true face includes: capturing a parallel image of a face captured by a camera having a filter polarising parallel to a polarisation direction and an orthogonal image of the face captured by a camera's filter polarising orthogonally to the polarisation direction; computing a difference image from difference between the parallel and orthogonal images; filtering the difference image in wavelet packets on 5 levels, eliminating “low” resolution levels; dividing the filtered image into sub-images; the filtered image and each sub-image undergoes: a Fourier or discreet cosine transformation; and modelling during which the frequency decrease profile is modelled by a model of the power type (a.

Abstract: A security gate has two walls defining between them a passage through which an individual passes, for each wall, a transparent lighting window extending over at least part of the wall, for at least one of the edges of the lighting window, a light source intended to light the edge and to generate light beams that propagate through the thickness of the lighting window, and for each lighting window, at least one extraction zone provided on the lighting window and intended to transmit the light beams towards the face of the individual passing through the passage, the light beams thus transmitted forming, with respect to the plane of the lighting window from which they emanate, an angle adapted to the geometry of the security gate so as to optimize the lighting of the individual.

Abstract: A security gate has two walls defining between them a passage through which an individual passes, for each wall, a transparent lighting window extending over at least part of the wall, for at least one of the edges of the lighting window, a light source intended to light the edge and to generate light beams that propagate through the thickness of the lighting window, and for each lighting window, at least one extraction zone provided on the lighting window and intended to transmit the light beams towards the face of the individual passing through the passage, the light beams thus transmitted forming, with respect to the plane of the lighting window from which they emanate, an angle adapted to the geometry of the security gate so as to optimize the lighting of the individual.

Abstract: The present invention provides a process and system for identifying a person. According to the inventive method, and with the aid of the system, a sensor is used to capture biometric characteristics of a person to be identified. Identification data is extracted and the identification data of the person to be identified is compared to reference data in a database. In a preferred embodiment, an image is taken of creases in the skin of the person to be identified, reference crease data having been taken beforehand and stored in a database, and a first recognition is effected by means of the skin crease image in a filtering stage. After this first recognition, the reference data of the database may be filtered using other biometric characteristics, with continuing recognition using these other characteristics.

Abstract: The present invention provides a process and system for identifying a person. According to the inventive method, and with the aid of the system, a sensor is used to capture biometric characteristics of a person to be identified. Identification data is extracted and the identification data of the person to be identified is compared to reference data in a database. In a preferred embodiment, an image is taken of creases in the skin of the person to be identified, reference crease data having been taken beforehand and stored in a database, and a first recognition is effected by means of the skin crease image in a filtering stage. After this first recognition, the reference data of the database may be filtered using other biometric characteristics, with continuing recognition using these other characteristics.