Patents by Inventor Thomas Solignac

Thomas Solignac 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).

  • Patent number: 10275857
    Abstract: A method for enhancing a depth image of a scene, comprises calculating an enhanced depth image by blending a first filtered depth image with a second filtered depth image or with the original depth image. The blending is achieved by application of a blending map, which defines, for each pixel, a contribution to the enhanced depth image of the corresponding pixel of the first filtered depth image and of the corresponding pixel of either the second filtered depth image or the original depth image. For pixels in the depth image containing no depth value or an invalid depth value, the blending map defines a zero contribution of the corresponding pixel of the second filtered depth image and a 100% contribution of the corresponding pixel of the first filtered image.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: April 30, 2019
    Assignee: IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
    Inventors: Bruno Mirbach, Thomas Solignac, Frederic Garcia Becerro, Djamila Aouada
  • Patent number: 9400917
    Abstract: A dynamic reference range image generation method comprises providing a reference range image, to be dynamically updated, composed of pixels, each of which contains a reference range value. An acquired range image is provided, the pixels of which contain each a measured range value, the measured range values being updated at a predetermined rate. Pixels of the acquired range image containing an invalid measured range value are accordingly marked. The measured range value of each pixel of the acquired range image not marked as containing an invalid measured range value is compared with the reference range value of the corresponding pixel of the reference range image. The reference range value of that pixel of the reference range image is updated e.g.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: July 26, 2016
    Assignee: IEE International Electronics & Engineering S.A.
    Inventors: Frédéric Grandidier, Bruno Mirbach, Thomas Solignac
  • Publication number: 20150235351
    Abstract: A method for enhancing a depth image of a scene, comprises calculating an enhanced depth image by blending a first filtered depth image with a second filtered depth image or with the original depth image. The blending is achieved by application of a blending map, which defines, for each pixel, a contribution to the enhanced depth image of the corresponding pixel of the first filtered depth image and of the corresponding pixel of either the second filtered depth image or the original depth image. For pixels in the depth image containing no depth value or an invalid depth value, the blending map defines a zero contribution of the corresponding pixel of the second filtered depth image and a 100% contribution of the corresponding pixel of the first filtered image.
    Type: Application
    Filed: September 9, 2013
    Publication date: August 20, 2015
    Inventors: Bruno Mirbach, Thomas Solignac, Frederic Garcia Becerro, Djamila Aouada
  • Patent number: 8723924
    Abstract: A method of recording 3D images of a scene based on the time-of-flight principle is described. The method includes illuminating a scene by emitting light carrying an intensity modulation, imaging the scene onto a pixel array using an optical system, detecting, in each pixel, intensity-modulated light reflected from the scene onto the pixel and determining, for each pixel, a distance value based on the phase of light detected in the pixel. The determination of the distance values includes a phase-sensitive de-convolution of the scene imaged onto the pixel array such that phase errors induced by light spreading in the optical system are compensated for.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: May 13, 2014
    Assignee: IEE International Electronics & Engineering S.A.
    Inventors: Bruno Mirbach, Marta Castillo Franco, Thomas Solignac, Frédéric Grandidier
  • Publication number: 20120229646
    Abstract: A dynamic reference range image generation method comprises providing a reference range image, to be dynamically updated, composed of pixels, each of which contains a reference range value. An acquired range image is provided, the pixels of which contain each a measured range value, the measured range values being updated at a predetermined rate. Pixels of the acquired range image containing an invalid measured range value are accordingly marked. The measured range value of each pixel of the acquired range image not marked as containing an invalid measured range value is compared with the reference range value of the corresponding pixel of the reference range image. The reference range value of that pixel of the reference range image is updated e.g.
    Type: Application
    Filed: September 16, 2010
    Publication date: September 13, 2012
    Applicant: IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
    Inventors: Frédéric Grandidier, Bruno Mirbach, Thomas Solignac
  • Publication number: 20110205340
    Abstract: A camera system comprises a 3D TOF camera for acquiring a camera-perspective range image of a scene and an image processor for processing the range image. The image processor contains a position and orientation calibration routine implemented therein in hardware and/or software, which position and orientation calibration routine, when executed by the image processor, detects one or more planes within a range image acquired by the 3D TOF camera, selects a reference plane among the at least one or more planes detected and computes position and orientation parameters of the 3D TOF camera with respect to the reference plane, such as, e.g., elevation above the reference plane and/or camera roll angle and/or camera pitch angle.
    Type: Application
    Filed: April 27, 2009
    Publication date: August 25, 2011
    Applicant: IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
    Inventors: Frederic Garcia, Frederic Grandidier, Bruno Mirbach, Roberto Orsello, Thomas Solignac
  • Publication number: 20110018967
    Abstract: A method of recording 3D images of a scene based on the time-of-flight principle comprises illuminating a scene by emitting light carrying an intensity modulation, imaging the scene onto a pixel array using an optical system, detecting, in each pixel, intensity-modulated light reflected from the scene onto the pixel and determining, for each pixel, a distance value based on the phase of light detected in the pixel. The determination of the distance values comprises a phase-sensitive de-convolution of the scene imaged onto the pixel array such that phase errors induced by light spreading in the optical system are compensated for.
    Type: Application
    Filed: December 9, 2008
    Publication date: January 27, 2011
    Applicant: IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
    Inventors: Bruno Mirbach, Marta Castillo Franco, Thomas Solignac, Frederic Grandidier