Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Estimation of Rotation of Camera Direction and Distance Between Two Camera Positions by Using Fisheye Lens System

  • Aregawi, Tewodros A. (School of Electronics Engineering, Kyungpook National University) ;
  • Kwon, Oh-Yeol (School of Electronics Engineering, Kyungpook National University) ;
  • Park, Soon-Yong (School of Computer science and Engineering, Kyungpook National University) ;
  • Chien, Sung-Il (School of Electronics Engineering, Kyungpook National University)
  • Received : 2013.08.26
  • Accepted : 2013.11.01
  • Published : 2013.11.29
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Abstract

We propose a method of sensing the rotation and distance of a camera by using a fisheye lens system as a vision sensor. We estimate the rotation angle of a camera with a modified correlation method by clipping similar regions to avoid symmetry problems and suppressing highlight areas. In order to eliminate the rectification process of the distorted points of a fisheye lens image, we introduce an offline process using the normalized focal length, which does not require the image sensor size. We also formulate an equation for calculating the distance of a camera movement by matching the feature points of the test image with those of the reference image.

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References

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