Patents by Inventor Bernhard Drixler

Bernhard Drixler 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).

  • System and method for automatic hand-eye calibration of vision system for robot motion
    Patent number: 11911914
    Abstract: This invention provides a system and method that automatically decides motion parameters of hand-eye calibration, and conducts the calibration procedure with minimal human intervention. It automatically computes hand-eye calibration motion parameters and spatial positions during pre-calibration, whereby the calibration pattern can continuously remain inside, and covering, the entire field of view FOV of the vision system camera, providing a fully automatic hand-eye calibration process. This system and method advantageously operates in a robot-based hand-eye calibration environment and can compensate for a cantilever effect between the calibration target and the FOV. A hand-eye calibration computes the transformation from the robot coordinate space to the camera coordinate space.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: February 27, 2024
    Assignee: Cognex Corporation
    Inventors: Bernhard Drixler, Yingchuan Hu
  • SYSTEM AND METHOD FOR AUTOMATIC HAND-EYE CALIBRATION OF VISION SYSTEM FOR ROBOT MOTION
    Publication number: 20200238525
    Abstract: This invention provides a system and method that automatically decides motion parameters of hand-eye calibration, and conducts the calibration procedure with minimal human intervention. It automatically computes hand-eye calibration motion parameters and spatial positions during pre-calibration, whereby the calibration pattern can continuously remain inside, and covering, the entire field of view FOV of the vision system camera, providing a fully automatic hand-eye calibration process. This system and method advantageously operates in a robot-based hand-eye calibration environment and can compensate for a cantilever effect between the calibration target and the FOV. A hand-eye calibration computes the transformation from the robot coordinate space to the camera coordinate space.
    Type: Application
    Filed: January 28, 2019
    Publication date: July 30, 2020
    Inventors: Bernhard Drixler, Yingchuan Hu