Patents by Inventor Rolf Heidemann

Rolf Heidemann 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: 12115652
    Abstract: A system includes a pose manipulation system operationally that sets a pose of a position measurement system with respect to an object that is to be measured. The system further includes a pose tracking system configured to record a relative pose between a coordinate system associated with the position measurement system and a coordinate system of the object. The pose tracking system records a path along which the position measurement system is enabled to measure 3D coordinates of a surface of a type of an object, wherein recording the path comprises moving the pose manipulation system sequentially through a plurality of poses and recording, at each pose, the relative pose to measure the 3D coordinates. The pose manipulation system follows the path again, and the position measurement system measures the 3D coordinates by applying one or more of the recorded poses.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: October 15, 2024
    Assignee: FARO Technologies, Inc.
    Inventors: Rolf Heidemann, Matthias Wolke, Steffen Kappes
  • Patent number: 11725928
    Abstract: A handheld device has a projector that projects a pattern of light onto an object, a first camera that captures the projected pattern of light in first images, a second camera that captures the projected pattern of light in second images, a registration camera that captures a succession of third images, one or more processors that determines three-dimensional (3D) coordinates of points on the object based at least in part on the projected pattern, the first images, and the second images, the one or more processors being further operable to register the determined 3D coordinates based at least in part on common features extracted from the succession of third images, and a mobile computing device operably connected to the handheld device and cooperating with the one or more processors, the mobile computing device operable to display the registered 3D coordinates of points.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: August 15, 2023
    Assignee: FARO Technologies, Inc.
    Inventors: Daniel Döring, Rolf Heidemann, Martin Ossig, Gerrit Hillebrand
  • Patent number: 11683465
    Abstract: An imaging device and method of imaging a region. The imaging device includes a first camera and a first light source set at a periphery of the first camera, a second camera separated from the first camera by a selected distance and a second light source set at a periphery of the second camera, and a processor configured to operate the first light source set and the second light source set independently of each other. The region is illuminated using the first light source and a first image is obtained. The region is illuminated using the second light source and a second image is obtained. At least one of the first image and the second image includes an illumination effect.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: June 20, 2023
    Assignee: FARO Technologies, Inc.
    Inventors: Rolf Heidemann, Matthias Wolke, Christoph Neundorf
  • Patent number: 11644303
    Abstract: A method including determining with a three-dimensional (3D) measuring instrument 3D coordinates of an object for each of a plurality of poses of the 3D measuring instrument; capturing with a camera first- and higher-order diffraction components of markers near or on the object, the camera having a diffractive optical element (DOE), a lens, and a photosensitive array; and registering with a processor the determined 3D coordinates based at least in part on the determined 3D coordinates and on the imaged zero- and higher-order diffraction components.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: May 9, 2023
    Assignee: FARO Technologies, Inc.
    Inventor: Rolf Heidemann
  • Patent number: 11408728
    Abstract: A dimensional measuring device includes an overview camera and a triangulation scanner. A six-DOF tracking device tracks the dimensional measuring device as the triangulation scanner measures three-dimensional (3D) coordinates on an exterior of the object. Cardinal points identified by the overview camera are used to register in a common frame of reference 3D coordinates measured by the triangulation scanner on the interior and exterior of the object.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: August 9, 2022
    Assignee: FARO TECHNOLOGIES, INC.
    Inventors: Bernd-Dietmar Becker, Robert E. Bridges, Ariane Stiebeiner, Rolf Heidemann, Matthias Wolke
  • Publication number: 20220236048
    Abstract: A handheld device has a projector that projects a pattern of light onto an object, a first camera that captures the projected pattern of light in first images, a second camera that captures the projected pattern of light in second images, a registration camera that captures a succession of third images, one or more processors that determines three-dimensional (3D) coordinates of points on the object based at least in part on the projected pattern, the first images, and the second images, the one or more processors being further operable to register the determined 3D coordinates based at least in part on common features extracted from the succession of third images, and a mobile computing device operably connected to the handheld device and cooperating with the one or more processors, the mobile computing device operable to display the registered 3D coordinates of points.
    Type: Application
    Filed: April 11, 2022
    Publication date: July 28, 2022
    Inventors: Daniel DÖRING, Rolf HEIDEMANN, Martin OSSIG, Gerrit HILLEBRAND
  • Publication number: 20220196386
    Abstract: According to one aspect of the disclosure, a three-dimensional coordinate scanner is provided. The scanner includes a projector configured to emit a pattern of light; a sensor arranged in a fixed predetermined relationship to the projector, the sensor having a photosensitive array comprised of a plurality of event-based pixels, each of the event-based pixels being configured to transmit a signal in response to a change in irradiance exceeding a threshold. One or more processors are electrically coupled to the projector and the sensor, the one or more processors being configured to modulate the pattern of light and determine a three-dimensional coordinate of a surface based at least in part on the pattern of light and the signal.
    Type: Application
    Filed: December 21, 2021
    Publication date: June 23, 2022
    Inventors: Rolf Heidemann, Matthias Wolke
  • Publication number: 20220155060
    Abstract: A triangulation scanner having an enclosure, a projector coupled to the enclosure and configured to emit a first light, and three cameras also coupled to the enclosure. The scanner further includes at least one processor to determine the three-dimensional coordinates in a local frame of reference based at least in part on receiving the first light.
    Type: Application
    Filed: February 7, 2022
    Publication date: May 19, 2022
    Inventors: Yazid Tohme, Rolf Heidemann, Markus Grau, Robert E. Bridges
  • Patent number: 11300400
    Abstract: A system and method of determining three-dimensional coordinates is provided. The method includes, with a projector, projecting onto an object a projection pattern that includes collection of object spots. With a first camera, a first image is captured that includes first-image spots. With a second camera, a second image is captured that includes second-image spots. Each first-image spot is divided into first-image spot rows. Each second-image spot is divided into second-image spot rows. Central values are determined for each first-image and second-image spot row. A correspondence is determined among first-image and second-image spot rows, the corresponding first-image and second-image spot rows being a spot-row image pair. Tach spot-row image pair having a corresponding object spot row on the object. Three-dimensional (3D) coordinates of each object spot row are determined on the central values of the corresponding spot-row image pairs. The 3D coordinates of the object spot rows are stored.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: April 12, 2022
    Assignee: FARO TECHNOLOGIES, INC.
    Inventors: Daniel Döring, Rolf Heidemann, Martin Ossig, Gerrit Hillebrand
  • Patent number: 11262194
    Abstract: A triangulation scanner having an enclosure, a projector coupled to the enclosure and configured to emit a first light, and three cameras also coupled to the enclosure. The scanner further includes at least one processor to determine the three-dimensional coordinates in a local frame of reference based at least in part on receiving the first light.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: March 1, 2022
    Assignee: FARO TECHNOLOGIES, INC.
    Inventors: Yazid Tohme, Rolf Heidemann, Markus Grau, Robert E. Bridges
  • Publication number: 20220048199
    Abstract: A system includes a pose manipulation system operationally that sets a pose of a position measurement system with respect to an object that is to be measured. The system further includes a pose tracking system configured to record a relative pose between a coordinate system associated with the position measurement system and a coordinate system of the object. The pose tracking system records a path along which the position measurement system is enabled to measure 3D coordinates of a surface of a type of an object, wherein recording the path comprises moving the pose manipulation system sequentially through a plurality of poses and recording, at each pose, the relative pose to measure the 3D coordinates. The pose manipulation system follows the path again, and the position measurement system measures the 3D coordinates by applying one or more of the recorded poses.
    Type: Application
    Filed: May 21, 2021
    Publication date: February 17, 2022
    Inventors: Rolf Heidemann, Matthias Wolke, Steffen Kappes
  • Publication number: 20210192778
    Abstract: A retroreflective marker assembly. The assembly includes a retroreflective marker and a protective window through which light passes to reflect from the marker. A support structure supports the marker on its face and includes one or more legs, each having a facet that polarizes light upon reflection from the facet. The assembly can include a spherical base with a reflective coating secured to the base. An angular position of the marker with respect to an imaging device is determined by measuring a first angle of a light between the marker and the imaging device along a deviated optical path, determining an angular deviation of the light from a straight-line path, and determining a second angle indicative of the straight-line path based on the first angle and the angular deviation. A polarization angle of light reflected from a facet determines an orientation of the marker with respect to the imaging device.
    Type: Application
    Filed: October 29, 2020
    Publication date: June 24, 2021
    Inventors: Rolf Heidemann, Matthias Wolke, Alexander Abramow
  • Publication number: 20210180940
    Abstract: A method including determining with a three-dimensional (3D) measuring instrument 3D coordinates of an object for each of a plurality of poses of the 3D measuring instrument; capturing with a camera first- and higher-order diffraction components of markers near or on the object, the camera having a diffractive optical element (DOE), a lens, and a photosensitive array; and registering with a processor the determined 3D coordinates based at least in part on the determined 3D coordinates and on the imaged zero- and higher-order diffraction components.
    Type: Application
    Filed: September 18, 2020
    Publication date: June 17, 2021
    Inventor: Rolf Heidemann
  • Patent number: 11022692
    Abstract: A projector projects an uncoded pattern of uncoded spots onto an object, which is imaged by a first camera and a second camera, 3D coordinates of the spots on the object being determined by a processor based on triangulation, the processor further determining correspondence among the projected and imaged spots based at least in part on a nearness of intersection of lines drawn from the projector and image spots through their respective perspective centers.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: June 1, 2021
    Assignee: FARO TECHNOLOGIES, INC.
    Inventors: Rolf Heidemann, Mark Brenner, Simon Raab
  • Publication number: 20210131788
    Abstract: A system and method of determining three-dimensional coordinates is provided. The method includes, with a projector, projecting onto an object a projection pattern that includes collection of object spots. With a first camera, a first image is captured that includes first-image spots. With a second camera, a second image is captured that includes second-image spots. Each first-image spot is divided into first-image spot rows. Each second-image spot is divided into second-image spot rows. Central values are determined for each first-image and second-image spot row. A correspondence is determined among first-image and second-image spot rows, the corresponding first-image and second-image spot rows being a spot-row image pair. Tach spot-row image pair having a corresponding object spot row on the object. Three-dimensional (3D) coordinates of each object spot row are determined on the central values of the corresponding spot-row image pairs. The 3D coordinates of the object spot rows are stored.
    Type: Application
    Filed: January 13, 2021
    Publication date: May 6, 2021
    Inventors: Daniel Döring, Rolf Heidemann, Martin Ossig, Gerrit Hillebrand
  • Publication number: 20210116239
    Abstract: A triangulation scanner having an enclosure, a projector coupled to the enclosure and configured to emit a first light, and three cameras also coupled to the enclosure. The scanner further includes at least one processor to determine the three-dimensional coordinates in a local frame of reference based at least in part on receiving the first light.
    Type: Application
    Filed: December 8, 2020
    Publication date: April 22, 2021
    Inventors: Yazid Tohme, Rolf Heidemann, Markus Grau, Robert E. Bridges
  • Patent number: 10935365
    Abstract: A 3D sensor system with a mounting arrangement is provided. The system includes a 3D sensor that measures 3D coordinates of a surface, the 3D sensor having a body with a slot disposed in a side, the slot further having a recess centrally disposed thereon. One or more slot nuts are disposed in the slot. A mounting bracket is provided having a pair of keystone members and a dowel pin disposed therebetween, the keystone members being disposed in the slot and the dowel pin being disposed in the recess, the mounting bracket having a plurality of holes aligned with the slot. One or more fasteners are provided that extend through the plurality holes and engage the one or more slot nuts to couple the mounting bracket to the 3D sensor.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: March 2, 2021
    Assignee: FARO TECHNOLOGIES, INC.
    Inventors: Rolf Heidemann, Axel Ruhland, Christoph Neundorf, Steffen Kappes, Markus Grau
  • Patent number: 10935371
    Abstract: A triangulation scanner system and method of operation is provided. The system includes a projector that alternately projects a pattern of light and no light during first and second time intervals. A camera includes a lens and a circuit with a photosensitive array. The camera captures an image of an object. The photosensitive array has a plurality of pixels including a first pixel. The first pixel including an optical detector and a first and second accumulator. The optical detector produces signals in response to a light levels reflected from a point on the object. The first accumulator sums the signals during the first time intervals to obtain a first summed signal. The second accumulator sums the signals during the second time intervals obtain a second summed signal. A processor determines 3D coordinates of the point based on the projected pattern of light and on the first and second summed signals.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: March 2, 2021
    Assignee: FARO TECHNOLOGIES, INC.
    Inventors: Matthias Wolke, Rolf Heidemann, Gerrit Hillebrand, Daniel Döring
  • Publication number: 20210041222
    Abstract: A dimensional measuring device includes an overview camera and a triangulation scanner. A six-DOF tracking device tracks the dimensional measuring device as the triangulation scanner measures three-dimensional (3D) coordinates on an exterior of the object. Cardinal points identified by the overview camera are used to register in a common frame of reference 3D coordinates measured by the triangulation scanner on the interior and exterior of the object.
    Type: Application
    Filed: October 28, 2020
    Publication date: February 11, 2021
    Inventors: Bernd-Dietmar Becker, Robert E. Bridges, Ariane Stiebeiner, Rolf Heidemann, Matthias Wolke
  • Patent number: 10883819
    Abstract: A dimensional measuring device includes an overview camera and a triangulation scanner. A six-DOF tracking device tracks the dimensional measuring device as the triangulation scanner measures three-dimensional (3D) coordinates on an exterior of the object. Cardinal points identified by the overview camera are used to register in a common frame of reference 3D coordinates measured by the triangulation scanner on the interior and exterior of the object.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: January 5, 2021
    Assignee: FARO TECHNOLOGIES, INC.
    Inventors: Bernd-Dietmar Becker, Robert E. Bridges, Ariane Stiebeiner, Rolf Heidemann, Matthias Wolke