Pose determination and plane measurement using a trapezium

  • Authors:
  • Fuqing Duan;Fuchao Wu;Zhanyi Hu

  • Affiliations:
  • College of Information Science and Technology, Beijing Normal University, Beijing 100875, PR China and National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Scien ...;National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, P.O. Box 2728, Beijing 100080, PR China;National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, P.O. Box 2728, Beijing 100080, PR China

  • Venue:
  • Pattern Recognition Letters
  • Year:
  • 2008

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Abstract

In this paper, a new affine invariant of trapezia is introduced, and the projection of trapezia is deduced from this invariant. Known the lengths of the two parallel sides of a trapezium, pose estimation and plane measurement can be realized in a very simple way from the projection of the trapezium. Experiments on simulated and real images show that the approach is robust and accurate. Two parallel lines, which can determine a trapezium, are not rare in many structured scenes, the proposed method has wide applicability.