Patents by Inventor Laurent Blonde

Laurent Blonde 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).

  • Publication number: 20190250315
    Abstract: A device for shielding at least one sub-wavelength-scale object from an electromagnetic wave, which is incident on said device, comprises at least one layer of a dielectric material, a surface of which having at least one abrupt change of level forming a step. At least a lower and lateral part of the surface with respect to the step is in contact with a medium having a refractive index lower than that of the dielectric material. The at least one sub-wavelength-scale object is located within the device in a quiet zone where an electromagnetic field intensity is below a threshold, the quiet zone extending above said surface, in the vicinity of the step, in a direction of incidence of said electromagnetic wave.
    Type: Application
    Filed: October 20, 2017
    Publication date: August 15, 2019
    Inventors: Artem BORISKIN, Mitra DAMGHANIAN, Laurent BLONDE
  • Publication number: 20190243233
    Abstract: In one embodiment of the disclosure, it is proposed a photolithography device for generating structure on a photoresist substrate, the photolithography device comprising a light illumination unit and a photomask. The photomask is remarkable in that it comprises at least one layer of dielectric material and a medium having a refractive index lower than that of said dielectric material, wherein a surface of said at least one layer of dielectric material has at least one abrupt change of level forming a step, and wherein at least a base and lateral part of said surface, with respect to said step and a propagation direction of an electromagnetic wave from said light illumination unit, is in contact with said medium.
    Type: Application
    Filed: October 20, 2017
    Publication date: August 8, 2019
    Inventors: Artem BORISKIN, Laurent BLONDE
  • Patent number: 10319105
    Abstract: A method of calibrating an image acquisition device is described. The method includes emitting at least one light source pattern in an object space of the image acquisition device, adjusting one of the source patterns until an image pattern of the source pattern formed on a sensor of the image acquisition device exhibit a shape which centroid corresponds to a centroid of a reference pixel of the sensor, called a target image pattern and analyzing the adjusted source pattern and estimating therefrom at least one characteristic of a pixel beam directed to the reference pixel from the adjusted source pattern.
    Type: Grant
    Filed: September 18, 2016
    Date of Patent: June 11, 2019
    Assignee: INTERDIGITAL CE PATENT HOLDINGS
    Inventors: Laurent Blonde, Mozhdeh Seifi, Paul Kerbiriou
  • Publication number: 20190162978
    Abstract: There are several types of plenoptic devices having their proprietary file format. At present there is no standard supporting the acquisition and transmission of multidimensional information for an exhaustive over-view of the different parameters upon which a light-field depends. As such acquired light-field data for different cameras have a diversity of formats. The notion of pixel beam, which represents a volume occupied by a set of rays of light in an object space of an optical system of a camera is thus introduced. The method according to the invention enables to provide data representative of a collection of pixel beams describing a first optical system that is agnostic since these data are obtained by imaging the collection of pixel beams through a second optical system. Such data representative of a collection of pixel beams enable the generation of parametrized output images from which post-processing.
    Type: Application
    Filed: June 30, 2017
    Publication date: May 30, 2019
    Applicant: THOMSON LICENSING
    Inventors: Laurent BLONDE, Arno SCHUBERT, Guillaume BOISSON, Didier DOYEN, Paul KERBIRIOU, Olivier BURELLER, Valter DRAZIC
  • Patent number: 10298897
    Abstract: Method wherein each image of the content is transformed using at least one pre-transformed image which is associated with a key image of this content wherein, from each key image and an associated pre-transformed image, a color transform is derived, and wherein each color transform is applied to a selection of images of this content which is associated with said key image. Applied to a content broadcast system comprising a server and a receiver to which are connected several types of display devices, the invention advantageously makes it possible to adapt the content to these different types.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: May 21, 2019
    Assignee: INTERDIGITAL MADISON PATENT HOLDINGS
    Inventors: Hassane Guermoud, Jurgen Stauder, Laurent Blonde
  • Publication number: 20190101765
    Abstract: There are several types of plenoptic devices and camera arrays available on the market, and all these light field acquisition devices have their proprietary file format. However, there is no standard supporting the acquisition and transmission of multi-dimensional information. It is interesting to obtain information related to a correspondence between pixels of a sensor of said optical acquisition system and an object space of said optical acquisition system. Indeed, knowing which portion of the object space of an optical acquisition system a pixel belonging to the sensor of said optical acquisition system is sensing enables the improvement of signal processing operations. The notion of pixel beam, which represents a volume occupied by a set of rays of light in an object space of an optical system of a camera along with a compact format for storing such information is thus introduced.
    Type: Application
    Filed: December 29, 2016
    Publication date: April 4, 2019
    Inventors: Laurent BLONDE, Valter DRAZIC, Arno SCHUBERT
  • Publication number: 20190101769
    Abstract: The present disclosure concerns a device for forming a field intensity pattern in the near zone, from electromagnetic waves which are incident on said device. Notably, such a device allows confining electromagnetic waves, which are incident on the device, into beams of radiation in the near zone. It comprises at least one layer of dielectric material, which surface has at least one abrupt change of level forming a step. A lower and lateral part of said surface with respect to said step is in contact with a substance having a refractive index lower than that of said dielectric material. For an incident electromagnetic wave impinging upon the device in the vicinity of such a step, the corresponding step of index it encounters produces a complex electromagnetic phenomenon, which allows generating low-dispersive condensed beams and specific field patterns in the near zone.
    Type: Application
    Filed: March 24, 2017
    Publication date: April 4, 2019
    Inventors: Artem BORISKIN, Laurent BLONDE
  • Publication number: 20190101700
    Abstract: The present disclosure concerns a device for forming at least one focused beam in a near zone, from an electromagnetic wave incident on said device. Such device is remarkable in that it comprises at least one layer of a dielectric material comprising at least partially a first element, said first element having a first refractive index value, said first element comprising at least partially a second element, said second element having a second refractive index value greater than said first index value, and wherein said second element comprises at least a base surface, defined with respect to an arrival direction of said electromagnetic wave, and wherein said at least a base surface comprises at least two opposite edge line segments whose shape and associated base angles between said at least a base surface and a lateral surface of said second element, in a vertical plane with respect to said at least a base surface, control a shape of said at least one focused beam.
    Type: Application
    Filed: March 24, 2017
    Publication date: April 4, 2019
    Inventors: Artem BORISKIN, Laurent BLONDE
  • Patent number: 10129513
    Abstract: The present invention provides a method and system for determining and providing color metadata for a downlink data channel. In accordance with the present invention color metadata is determined such that gamut mapping is defined by a transmitted source gamut which enables adapted mapping that preserves saturation and contrast levels of the source for a downlink data channel. The metadata is then provided to a downlink data channel for color management.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: November 13, 2018
    Inventors: Ingo Tobias Doser, Jurgen Stauder, Laurent Blonde, Julien Thollot, David J Bancroft, Wolfgang Endress
  • Patent number: 10116867
    Abstract: A method for displaying at least one light field based image on a user's device is disclosed. Such a method comprises displaying the image focused according to at least one focusing parameter determined as a function of a pose of the user's device. A sensor embedded in the users' device, which may be a handheld device, may estimate the pose.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: October 30, 2018
    Assignee: Thomson Licensing
    Inventors: Laurent Blonde, Benoit Vandame, Paul Kerbiriou
  • Patent number: 10110872
    Abstract: The invention concerns a method and a device for correcting distortion errors in a 3D content viewed by an observer on a screen. The method comprises the step of determining a rendered roundness factor (rrf) of a pinhole model projected cylinder, estimating a rendered roundness factor table depending on the defined distance of the observer to the screen and the disparity values of objects of the image, determining for the observer a disparity transform function (TD) as a function of the estimated rendered roundness factor table and modifying the object disparity values using the disparity transform so that a perceived roundness factor of one is provided.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: October 23, 2018
    Assignee: Interdigital Madison Patent Holdings
    Inventors: Cyril Vienne, Laurent Blonde, Didier Doyen
  • Publication number: 20180260969
    Abstract: There are several types of plenoptic devices and camera arrays available on the market, and all these light field acquisition devices have their proprietary file format. However, there is no standard supporting the acquisition and transmission of multi-dimensional information. It is interesting to obtain information related to a correspondence between pixels of a sensor of said optical acquisition system and an object space of said optical acquisition system. Indeed, knowing which portion of the object space of an optical acquisition system a pixel belonging to the sensor of said optical acquisition system is sensing enables the improvement of signal processing operations. The notion of pixel beam, which represents a volume occupied by a set of rays of light in an object space of an optical system of a camera is thus introduce.
    Type: Application
    Filed: September 16, 2016
    Publication date: September 13, 2018
    Inventors: Guillaume BOISSON, Arno SCHUBERT, Laurent BLONDE
  • Publication number: 20180260968
    Abstract: There are several types of plenoptic devices and camera arrays available on the market, and all these light field acquisition devices have their proprietary file format. However, there is no standard supporting the acquisition and transmission of multi-dimensional information. It is interesting to obtain information related to a correspondence between pixels of a sensor of said optical acquisition system and an object space of said 10 optical acquisition system. Indeed, knowing which portion of the object space of an optical acquisition system a pixel belonging to the sensor of said optical acquisition system is sensing enables the improvement of signal processing operations. The notion of pixel beam, which represents a volume occupied by a set of rays of light in an object space of an optical system of a camera along with a compact format for storing such information is thus introduce.
    Type: Application
    Filed: September 16, 2016
    Publication date: September 13, 2018
    Applicant: THOMSON LICENSING
    Inventors: Valter DRAZIC, Laurent BLONDE, Olivier BURELLER
  • Publication number: 20180260977
    Abstract: There are several types of plenoptic devices and camera arrays available on the market, and all these light field acquisition devices have their proprietary file format. However, there is no standard supporting the acquisition and transmission of multi-dimensional information. It is interesting to obtain information related to a correspondence between pixels of a sensor of said optical acquisition system and an object space of said optical acquisition system. Indeed, knowing which portion of the object space of an optical acquisition system a pixel belonging to the sensor of said optical acquisition system is sensing enables the improvement of signal processing operations. The notion of pixel beam, which represents a volume occupied by a set of rays of light in an object space of an optical system of a camera is thus introduce.
    Type: Application
    Filed: August 23, 2016
    Publication date: September 13, 2018
    Inventors: Laurent BLONDE, Mozhdeh SEIFI, Guillaume BOISSON, Paul KERBIRIOU, Valter DRAZIC
  • Patent number: 10075700
    Abstract: The present disclosure improves 3D representation (by means of adjusting disparity between pictures) in stereoscopic or autostereoscopic images in order to better fit the natural viewing geometry by modifying each image of a stereo pair with a geometric transform centered on an intersection point of an imaging plane and a gaze direction for each of eyes. An observer's view is modeled independently for the left and right eyes, and the left and right views are processed independently with the goal to re-align pixel directions for each of eyes to make these directions more in correspondence with natural vision for the observer.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: September 11, 2018
    Assignee: Thomson Licensing
    Inventors: Laurent Blonde, Cyril Vienne, Thai-Quan Huynh-Thu
  • Publication number: 20180252928
    Abstract: There are several types of plenoptic devices and camera arrays available on the market, and all these light field acquisition devices have their proprietary file format. However, there is no standard supporting the acquisition and transmission of multi-dimensional information. It is interesting to obtain information related to a correspondence between pixels of a sensor of said optical acquisition system and an object space of said optical acquisition system. Indeed, knowing which portion of the object space of an optical acquisition system a pixel belonging to the sensor of said optical acquisition system is sensing enables the improvement of signal processing operations. The notion of pixel beam, which represents a volume occupied by a set of rays of light in an object space of an optical system of a camera along with a compact format for storing such information is thus introduce.
    Type: Application
    Filed: September 16, 2016
    Publication date: September 6, 2018
    Inventors: Laurent BLONDE, Valter DRAZIC, Mozhdeh SEIFI
  • Patent number: 10063830
    Abstract: The present invention provides a method of processing a source left view and a source right view of a 3D image comprising the steps of: identifying at least one ghosted region or ghosting region in the left view and/or in the right view; processing the identified regions in order to create a binocular suppression effect for this identified regions then providing a new 3D image formed by the processed left and/or right views.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: August 28, 2018
    Assignee: THOMSON LICENSING DTV
    Inventors: Laurent Blonde, Dar'ya Khaustova, Cedric Thebault
  • Patent number: 10025094
    Abstract: An optical see-through glass type display device comprises: an optical unit having a front correcting surface and a rear correcting surface; an image projector projecting a virtual image; and an image sensor for capturing an ambient scene image. The optical unit is configured to guide light of the ambient scene image coming through the front correcting surface to the image sensor and to guide light of the virtual image so that the light of the virtual image outgoes through the rear correcting surface. A first optical compensation element is located between the optical unit and the image sensor and a second optical compensation element is located between the image projector and the optical unit. The device further comprises a processing module configured to analyze the ambient scene image captured by the image sensor.
    Type: Grant
    Filed: December 20, 2014
    Date of Patent: July 17, 2018
    Assignee: Thomson Licensing
    Inventors: Laurent Blonde, Valter Drazic, Arno Schubert
  • Patent number: 10021340
    Abstract: There are several types of plenoptic devices and camera arrays available on the market, and all these light field acquisition devices have their proprietary file format. However, there is no standard supporting the acquisition and transmission of multi-dimensional information. It is interesting to obtain information related to a correspondence between pixels of a sensor of said optical acquisition system and an object space of said optical acquisition system. Indeed, knowing which portion of the object space of an optical acquisition system a pixel belonging to the sensor of said optical acquisition system is sensing enables the improvement of signal processing operations. The notion of pixel beam, which represents a volume occupied by a set of rays of light in an object space of an optical system of a camera along with a compact format for storing such information is thus introduce.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: July 10, 2018
    Assignee: THOMSON LICENSING
    Inventors: Valter Drazic, Laurent Blonde, Arno Schubert
  • Patent number: 10003790
    Abstract: The invention consists in a method of and a device for adapting 3D content to an observer wearing prescription glasses. The method comprises the step of—providing information about prescription glasses of the observer;—calculating a value representative of the optical deviation created by the glasses from the provided information, for a given direction;—estimating a depth adjustment value as a function of the calculated value and—modifying the depth of the 3D content according to the estimated depth adjustment value.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: June 19, 2018
    Assignee: Thomson Licensing
    Inventors: Laurent Blonde, Sylvain Thiebaud, Didier Doyen