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Image processing device and image processing method for camera calibration

  • US 9,412,168 B2
  • Filed: 12/14/2011
  • Issued: 08/09/2016
  • Est. Priority Date: 06/18/2009
  • Status: Expired due to Fees
First Claim
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1. An image processing device comprising:

  • an integrating unit configured to acquire, from a camera installed on a movable body, images that are captured by the camera while the movable body is moving and integrates the acquired images so as to generate an integrated image;

    a vanishing-point identifying unit configured to extract brightness edges from the integrated image and identifies an intersection point of lines determined by using the brightness edges as a vanishing point;

    a determining unit configured to determine whether a parameter of the camera has an appropriate value by using coordinates of the vanishing point identified and reference coordinates, the reference coordinates being coordinates of a reference vanishing point stored; and

    a correcting unit configured to correct the parameter of the camera in accordance with a difference between the coordinates of the vanishing point identified and the reference coordinates.

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