Patents by Inventor Mark Christopher Sheehan

Mark Christopher Sheehan 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).

  • Determining extrinsic calibration parameters for a sensor
    Patent number: 9297899
    Abstract: A method of determining extrinsic calibration parameters for at least one sensor (102, 104, 106) mounted on transportable apparatus (100). The method includes receiving (202) data representing pose history of the transportable apparatus and receiving (202) sensor data from at least one sensor mounted on transportable apparatus. The method generates (204) at least one point cloud data using the sensor data received from the at least one sensor, each point in a said point cloud having a point covariance derived from the pose history data. The method then maximizes (206) a value of a quality function for the at least one point cloud, and uses (208) the maximized quality function to determine extrinsic calibration parameters for the at least one sensor.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: March 29, 2016
    Assignee: The Chancellor Masters and Scholars of the University of Oxford
    Inventors: Paul Michael Newman, William Paul Maddern, Alastair Robin Harrison, Mark Christopher Sheehan
  • DETERMINING EXTRINSIC CALIBRATION PARAMETERS FOR A SENSOR
    Publication number: 20140240690
    Abstract: A method of determining extrinsic calibration parameters for at least one sensor (102, 104, 106) mounted on transportable apparatus (100). The method includes receiving (202) data representing pose history of the transportable apparatus and receiving (202) sensor data from at least one sensor mounted on transportable apparatus. The method generates (204) at least one point cloud data using the sensor data received from the at least one sensor, each point in a said point cloud having a point covariance derived from the pose history data. The method then maximises (206) a value of a quality function for the at least one point cloud, and uses (208) the maximised quality function to determine extrinsic calibration parameters for the at least one sensor.
    Type: Application
    Filed: September 27, 2012
    Publication date: August 28, 2014
    Applicant: THE CHANCELLOR MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD
    Inventors: Paul Michael Newman, William Paul Maddern, Alastair Robin Harrison, Mark Christopher Sheehan