Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Precise Detection of Coplanar Checkerboard Corner Points for Stereo Camera Calibration Using a Single Frame

스테레오 카메라 캘리브레이션을 위한 동일평면 체커보드 코너점 정밀검출

  • Received : 2015.01.16
  • Accepted : 2015.04.22
  • Published : 2015.07.01
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Abstract

This paper proposes an algorithm for precise detection of corner points on a coplanar checkerboard in order to perform stereo camera calibration using a single frame. Considering the conditions of automobile production lines where a stereo camera is attached to the windshield of a vehicle, this research focuses on a coplanar calibration methodology. To obtain the accurate values of the stereo camera parameters using the calibration methodology, precise localization of a large number of feature points on a calibration target image should be ensured. To realize this demand, the idea with respect to a checkerboard pattern design and the use of a Homography matrix are provided. The calibration result obtained by the proposed method is also verified by comparing the depth information from stereo matching and a laser scanner.

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References

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