Patents by Inventor Martin AHRNBOM

Martin AHRNBOM 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).

  • Imaging system and a method of calibrating an image system
    Patent number: 11640680
    Abstract: An imaging system is described having at least three cameras and a processing unit. The at least three cameras have a common field of view and camera centres positioned along a line. The at least three cameras are configured to image a calibration object to generate a set of calibration object images, wherein the calibration object is located nearby the at least three cameras and in the common field of view. The at least three cameras are further configured to image a scene comprising a set of distant scene position points to generate a set of position point images. The processing unit is configured to generate a set of calibration parameters in dependence on the set of calibration object images and the set of position point images.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: May 2, 2023
    Assignee: Axis AB
    Inventors: Håkan Ardö, Mikael Nilsson, Karl Erik Åström, Martin Ahrnbom
  • IMAGING SYSTEM
    Publication number: 20210233276
    Abstract: An imaging system comprises at least three cameras having a common field of view, wherein each of the at least three cameras having a camera centre, and wherein the camera centres are positioned along a line, the at least three cameras being configured to: image a calibration object to generate a set of calibration object images, wherein the calibration object is located nearby the at least three cameras and in the common field of view, and image a scene comprising a set of distant scene position points to generate a set of position point images, and a processing unit configured to generate a set of calibration parameters in dependence on the set of calibration object images and the set of position point images.
    Type: Application
    Filed: December 4, 2020
    Publication date: July 29, 2021
    Applicant: Axis AB
    Inventors: Håkan ARDÖ, Mikael NILSSON, Karl Erik ÅSTRÖM, Martin AHRNBOM