Invention Grant
US09330463B2 Method of calibrating a camera and a system therefor 有权
相机及其系统的校准方法

  • Patent Title: Method of calibrating a camera and a system therefor
  • Patent Title (中): 相机及其系统的校准方法
  • Application No.: US14002195
    Application Date: 2012-11-29
  • Publication No.: US09330463B2
    Publication Date: 2016-05-03
  • Inventor: Jason Peter De VilliersJaco Cronje
  • Applicant: CSIR
  • Applicant Address: ZA Pretoria
  • Assignee: CSIR
  • Current Assignee: CSIR
  • Current Assignee Address: ZA Pretoria
  • Agency: Nixon Peabody LLP
  • Agent Jeffrey L. Costellia
  • International Application: PCT/IB2012/056820 WO 20121129
  • International Announcement: WO2014/083386 WO 20140605
  • Main IPC: G06K9/00
  • IPC: G06K9/00 G06T7/00 H04N5/232 H04N17/00
Method of calibrating a camera and a system therefor
Abstract:
A system and method for calibrating a camera includes an energy source and a camera to be calibrated, with at least one of the energy source and the camera being mounted on a mechanical actuator so that it is movable relative to the other. A processor is connected to the energy source, the mechanical actuator and the camera and is programmed to control the mechanical actuator to move at least one of the energy source and the camera relative to the other through a plurality of discrete points on a calibration target pattern. The processor further, at each of the discrete points, controls the camera to take a digital image and perform a lens distortion characterization on each image. A focal length of the camera is determined including any lens connected to the camera and an extrinsic camera position for each image is then determined.
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