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Learning the elasticity parameters of deformable objects with a manipulation robot

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5 Author(s)
Frank, Barbara ; Dept. of Comput. Sci., Univ. of Freiburg, Freiburg, Germany ; Schmedding, R. ; Stachniss, C. ; Teschner, M.
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In this paper, we consider the problem of determining the elasticity properties of deformable objects with a mobile manipulator equipped with a force sensorb. We learn the parameters by establishing a relation between the applied forces and the corresponding surface deformations. To determine the parameters, we minimize the difference between the observed surface of an object that is deformed by a real manipulator and the deformed surface obtained with a deformation simulator based on finite element methods. To establish the correspondences between the surfaces, our approach applies a 3D registration technique based on point-clouds which is used as the basis for comparing the results of the simulation system with the observations of the real deformations. As we demonstrate in real-world experiments, our system is able to estimate appropriate parameters that can be used to predict future deformations. This information can directly be incorporated into motion planning approaches that are designed for robots operating with deformable objects.

Published in:

Intelligent Robots and Systems (IROS), 2010 IEEE/RSJ International Conference on

Date of Conference:

18-22 Oct. 2010