Patents by Inventor Norbert Lehmann

Norbert Lehmann 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).

  • Optical test device for a vehicle camera and testing method
    Patent number: 10368063
    Abstract: A method of testing a camera for vision system for a vehicle includes providing a camera configured for mounting and use on a vehicle. The camera is operable at selected ones of a plurality of register settings. A test pattern is disposed in the field of view of the camera and at least two frames of image data are captured with the camera using different register settings having noise filtering at a respective one of at least two levels between a maximum noise filtering and a minimum noise filtering. The signal to noise ratio is measured for each of the at least two frames of captured image data. A texture value is measured for each of the at least two frames of captured image data. A compromise is selected between noise reduction and texture preservation.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: July 30, 2019
    Assignee: MAGNA ELECTRONICS INC.
    Inventors: Norbert Lehmann, Michael Junglas
  • OPTICAL TEST DEVICE FOR A VEHICLE CAMERA AND TESTING METHOD
    Publication number: 20180302615
    Abstract: A method of testing a camera for vision system for a vehicle includes providing a camera configured for mounting and use on a vehicle. The camera is operable at selected ones of a plurality of register settings. A test pattern is disposed in the field of view of the camera and at least two frames of image data are captured with the camera using different register settings having noise filtering at a respective one of at least two levels between a maximum noise filtering and a minimum noise filtering. The signal to noise ratio is measured for each of the at least two frames of captured image data. A texture value is measured for each of the at least two frames of captured image data. A compromise is selected between noise reduction and texture preservation.
    Type: Application
    Filed: April 16, 2018
    Publication date: October 18, 2018
    Inventors: Norbert Lehmann, Michael Junglas