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Three-View Uncalibrated Visual Servoing

Full Text: shademan2010c.pdf PDF

We describe a new uncalibrated visual servoing approach for motion control of 6-DOF manipulators. Instead of image features, we use the elements of the scene-independent trifocal tensor of three views as features. The trifocal features depend only on the camera projection matrices and can be retrieved from point correspondences across the three views: initial, current, and desired. The Jacobian matrix that relates joint velocities and variations of the trifocal features is estimated online using least-squares. We evaluate the visual servoing performance for various easy and challenging motions, such as the translational motion along the view axis and the large rotation around the view axis. Simulations with a 6-DOF eye-in-hand manipulator show that the proposed method rapidly converges in all cases.

Citation

A. Shademan, M. Jagersand. "Three-View Uncalibrated Visual Servoing". International Conference on Intelligent Robots and Systems, pp 6234-6239, October 2010.

Keywords: 3D Vision, Robotics, Visual Servoing
Category: In Conference
Related Publication(s): Global Visual-Motor Estimation for Uncalibrated Visual Servoing
  Robust Jacobian Estimation for Uncalibrated Visual Servoing

BibTeX

@incollection{Shademan+Jagersand:IROS10,
  author = {Azad Shademan and Martin Jagersand},
  title = {Three-View Uncalibrated Visual Servoing},
  Pages = {6234-6239},
  booktitle = {International Conference on Intelligent Robots and Systems},
  year = 2010,
}

Last Updated: January 05, 2012
Submitted by Azad Shademan

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