Patents by Inventor Julien Doublet
Julien Doublet has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240070249Abstract: A biometric verification method for verifying the authenticity of a fingerprint acquisition of a reference image of a reference fingerprint including acquisition of a candidate image of a candidate fingerprint, geometric comparison between the geometric characteristic of the pattern of said reference print and the geometric characteristic of the pattern of said candidate print extracted from the acquired images, determination of geometric coherence between said reference print and said candidate print as a function of the result of the geometric comparison step and of the reference and candidate digital geometric configuration information extracted from the acquired images, and decision-making as to the authenticity of said candidate fingerprint as a function of the result of the geometric coherence determination step.Type: ApplicationFiled: August 22, 2023Publication date: February 29, 2024Applicant: IDEMIA IDENTITY & SECURITY FRANCEInventors: Alain THIEBOT, Julien DOUBLET, Jean BEAUDET
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Publication number: 20210056291Abstract: A method for analysis of an intrinsic facial feature of a face presented (2) in a field of acquisition of an imager (3) comprising the following steps: the imager (3) acquires a first image of a face, and then acquires a second image of the face, based on the first image and the second image, a processing unit determines a variation of an intrinsic facial feature between the first image and the second image, without determining a value quantifying an absolute state of the intrinsic facial feature in the first image and/or in the second image; based on the variation of the intrinsic facial feature, the processing unit determines a state of the face presented (2) in the field of acquisition of an imager (3) and performs an action depending on the state of the face presented.Type: ApplicationFiled: August 11, 2020Publication date: February 25, 2021Inventors: Julien DOUBLET, Jean BEAUDET, Maxime THIEBAUT
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Patent number: 10872437Abstract: The invention relates to a method for authenticating a face presented to a device comprising the steps in which the imager acquires an initial image of a face, the processing unit determines a pose of the face from the initial image, and determines a reference pose and a target position placed randomly or pseudo-randomly in a target space, the screen displays a displayed image (6) comprising at least one visual orientation mark (7) initially at a reference position, and a visual target (8) at the target position, updated by moving the visual orientation mark (7) according to the successive poses of the face, and the processing unit authenticates the face presented if there is a match between the position of the visual orientation mark (7) and the target position where the visual target is located (8).Type: GrantFiled: February 4, 2019Date of Patent: December 22, 2020Assignee: IDEMIA IDENTITY & SECURITY FRANCEInventors: Julien Doublet, Jean Beaudet
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Publication number: 20190244390Abstract: The invention relates to a method for authenticating a face presented to a device comprising the steps in which the imager acquires an initial image of a face, the processing unit determines a pose of the face from the initial image, and determines a reference pose and a target position placed randomly or pseudo-randomly in a target space, the screen displays a displayed image (6) comprising at least one visual orientation mark (7) initially at a reference position, and a visual target (8) at the target position, updated by moving the visual orientation mark (7) according to the successive poses of the face, and the processing unit authenticates the face presented if there is a match between the position of the visual orientation mark (7) and the target position where the visual target is located (8).Type: ApplicationFiled: February 4, 2019Publication date: August 8, 2019Inventors: Julien DOUBLET, Jean BEAUDET
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Patent number: 9471827Abstract: Validation of using a finger as support of a fingerprint may include: placing the support such that it bears; capturing a captured image of the print; transforming the captured image into a resulting image by passage through a low-pass filter; locating on the resulting image an origin point, the intensity of whose pixel is representative of the maximum pressure exerted on the support; verifying that, on the resulting image, for a plurality of radii issuing from the origin point, and for each of said radii, for a plurality of points M, the intensity of the pixel of each point M of said radius is representative of a decline in the pressure exerted on the support as the distance from the origin point to the point M increases, and a decision as regards the validity of the support is taken as a function of the results of the verification step.Type: GrantFiled: January 22, 2015Date of Patent: October 18, 2016Assignee: MORPHOInventors: Alain Thiebot, Benoît Thouy, Jean-François Boulanger, Julien Doublet
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Publication number: 20150220771Abstract: Validation of using a finger as support of a fingerprint may include: placing the support such that it bears; capturing a captured image of the print; transforming the captured image into a resulting image by passage through a low-pass filter; locating on the resulting image an origin point, the intensity of whose pixel is representative of the maximum pressure exerted on the support; verifying that, on the resulting image, for a plurality of radii issuing from the origin point, and for each of said radii, for a plurality of points M, the intensity of the pixel of each point M of said radius is representative of a decline in the pressure exerted on the support as the distance from the origin point to the point M increases, and a decision as regards the validity of the support is taken as a function of the results of the verification step.Type: ApplicationFiled: January 22, 2015Publication date: August 6, 2015Inventors: Alain THIEBOT, Benoît THOUY, Jean-François BOULANGER, Julien DOUBLET
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Patent number: 9025904Abstract: 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.Type: GrantFiled: October 26, 2010Date of Patent: May 5, 2015Assignee: MorphoInventors: Julien Doublet, Michaël Verilhac, Stephane Revelin, Sylvaine Picard
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Patent number: 8908237Abstract: The invention relates to a document-processing system, which includes a device suitable for supplying consecutive recorded images as well as a background surface, comprising a step of storing a standard background surface image. The next step consists of detecting the presence of a document moving across a series of recorded images relative to the standard background surface image. The following step consists of monitoring the movement of the document within the series of images. The end of the movement of the document is then detected and the standard background surface image is updated. The movement of the document is monitored by determining document-extraction masks respectively for the recorded images, the extraction mask of a recorded image being obtained according to an entropy card of the recorded image relative to said standard background surface image.Type: GrantFiled: May 25, 2011Date of Patent: December 9, 2014Assignee: MorphoInventors: Stephane Revelin, Julien Doublet, Michael Verilhac, Soufiane Jouini, William Ketchantang
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Publication number: 20130129248Abstract: 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 characterised 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 minimisation 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.Type: ApplicationFiled: October 26, 2010Publication date: May 23, 2013Applicant: MORPHOInventors: Julien Doublet, Michaël Verilhac, Stephane Revelin, Sylvaine Picard
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Publication number: 20130070315Abstract: The invention relates to a document-processing system, which includes a device suitable for supplying consecutive recorded images as well as a background surface, comprising a step of storing a standard background surface image. The next step consists of detecting the presence of a document moving across a series of recorded images relative to the standard background surface image. The following step consists of monitoring the movement of the document within the series of images. The end of the movement of the document is then detected and the standard background surface image is updated. The movement of the document is monitored by determining document-extraction masks respectively for the recorded images, the extraction mask of a recorded image being obtained according to an entropy card of the recorded image relative to said standard background surface image.Type: ApplicationFiled: May 25, 2011Publication date: March 21, 2013Inventors: Stephane Revelin, Julien Doublet, Michael Verilhac, Soufiane Jouini, William Ketchantang