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Solving the robot-world hand-eye(s) calibration problem with iterative methods

Abstract

Robot-world, hand-eye calibration is the problem of determining the transformation between the robot end-effector and a camera, as well as the transformation between the robot base and the world coordinate system. This relationship has been modeled as \({\mathbf {AX}}={\mathbf {ZB}}\), where \({\mathbf {X}}\) and \({\mathbf {Z}}\) are unknown homogeneous transformation matrices. The successful execution of many robot manipulation tasks depends on determining these matrices accurately, and we are particularly interested in the use of calibration for use in vision tasks. In this work, we describe a collection of methods consisting of two cost function classes, three different parameterizations of rotation components, and separable versus simultaneous formulations. We explore the behavior of this collection of methods on real datasets and simulated datasets and compare to seven other state-of-the-art methods. Our collection of methods returns greater accuracy on many metrics as compared to the state-of-the-art. The collection of methods is extended to the problem of robot-world hand-multiple-eye calibration, and results are shown with two and three cameras mounted on the same robot.

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Notes

  1. 1.

    All of the datasets are available from [14].

  2. 2.

    Various different initial solutions were tested, and there was small or negligible difference in the solution quality versus using an identity matrix for rotation matrices and translation component with all elements zero. For this reason, we conclude that for the experiments covered in this paper, the first class of methods is not sensitive to initial solutions.

  3. 3.

    While use of tables is perhaps not the easiest for the reader, we note that the huge range of values for each of the six error metrics made other types of representation (graphs, etc.) infeasible.

  4. 4.

    Only the first author is mentioned in the tables’ text for brevity.

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Acknowledgements

We also would like to thank anonymous reviewers of our previous paper [15] and this paper for their helpful comments.

Author information

Correspondence to Amy Tabb.

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Conflict of interest

A. Tabb received a grant from the US National Science Foundation, grant number IOS-1339211.

Additional information

Mention of trade names or commercial products in this publication is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the US Department of Agriculture. USDA is an equal opportunity provider and employer.

A. Tabb acknowledges the support of US National Science Foundation grant number IOS-1339211.

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Tabb, A., Ahmad Yousef, K.M. Solving the robot-world hand-eye(s) calibration problem with iterative methods. Machine Vision and Applications 28, 569–590 (2017). https://doi.org/10.1007/s00138-017-0841-7

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Keywords

  • Robot
  • Hand-eye
  • Calibration
  • Reconstruction