Setpoint regulation of continuum robots using a fixed camera

  • Chitrakaran V
  • Behal A
  • Dawson D
 et al. 
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Abstract

SUMMARY In this paper, we investigate the problem of measuring the shape of a continuum robot manipulator using visual information from a fixed camera. Specifically, we capture the motion of a set of fictitious planes, each formed by four or more feature points, defined at various strategic locations along the body of the robot. Then, utilizing expressions for the robot forward kinematics as well as the decomposition of a homography relating a reference image of the robot to the actual robot image, we obtain the three-dimensional shape information continuously. We then use this information to demonstrate the development of a kinematic controller to regulate the manipulator end-effector to a constant desired position and orientation.

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Authors

  • Vilas K. Chitrakaran

  • Aman Behal

  • Darren M. Dawson

  • Ian D. Walker

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