Patents by Inventor Jean-Sébastien Lemieux

Jean-Sébastien Lemieux 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: 11908173
    Abstract: A first set of pixels forming a first set of rows and a first set of columns of a first image acquired by an image acquisition device is received. A first corrected set of pixels forming a first corrected set of rows and a first corrected set of columns is generated from the first set of pixels. Successive pixels of each row from the first corrected set of rows correspond to successive parallel lines in a plane defined by the sheet of light that are equally spaced along a first axis of a world coordinate system. Successive pixels of each column from the first corrected set of columns correspond to successive parallel lines in the plane defined by the sheet of light that are equally spaced along a second axis of the world coordinate system. Based on the first corrected set of pixels, a first set of points of the sheet of light is determined. The first set of points of the sheet of light is used to obtain a three-dimensional profile of the object.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: February 20, 2024
    Assignee: Matrox Electronics Systems, Ltd.
    Inventors: Vincent Zalzal, Christopher Hirst, Steve Massicotte, Jean-Sébastien Lemieux
  • Patent number: 11120294
    Abstract: A first set of pixels forming a first set of rows of a first image acquired by an image acquisition device is received. A first partially corrected set of pixels forming a first partially corrected set of rows is generated from the first set of pixels where successive pixels of a row from the first partially corrected set of rows correspond to successive parallel lines in a plane defined by the sheet of light that are equally spaced along a first axis of a world coordinate system. Based on the first partially corrected set of pixels and based on a peak extraction mechanism, a first partially corrected set of points of the sheet of light is extracted. The first partially corrected set of points is transformed to obtain a first corrected set of points of the sheet of light that are corrected in a first and a second direction.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: September 14, 2021
    Assignee: Matrox Electronic Systems Ltd.
    Inventors: Vincent Zalzal, Christopher Hirst, Steve Massicotte, Jean-Sébastien Lemieux
  • Patent number: 9792675
    Abstract: A method for recognizing an occurrence of an object in an image is provided where the appearance of the object may vary from one occurrence to another. The method includes defining a model set for object recognition, the model set including at least one model, acquiring a target image, processing the target image according to a set of morphological operations to obtain a set of morphologically-processed target images, performing object recognition on the set of morphologically-processed target images for the defined model set, and selecting at least one candidate occurrence of a model of the defined model set in the target image based on the object recognition performed on the set of morphologically-processed target images.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: October 17, 2017
    Assignee: Matrox Electronic Systems, Ltd.
    Inventors: Arnaud Lina, Jean-Sébastien Lemieux, Jérôme Dubois