Florian T. Pokorny
Assistant Professor, School of Computer Science and Communication, KTH Royal Institute of TechnologyTopological Synergies for Grasp Transfer
In Hand Synergies - how to tame the complexity of grapsing, Workshop, IEEE International Conference on Robotics and Automation (ICRA), 2013
Abstract
In this contribution, we propose a novel approach towards representing physically stable grasps which enables us to
transfer grasps between different hand kinematics. We use a low dimensional topologically inspired coordinate
representation which we call topological synergies, and which is motivated by the topological notion of winding
numbers. We address the transfer problem as a stochastic optimization task and carry out motion planning in our
topologically inspired coordinates using the Approximate Inference Control (AICO) framework. This perspective allows us
to compute not only the final grasp itself, but also a trajectory in configuration space leading to it. We evaluate our
approach using the simulation framework PhysX. The presented experiments, which develop further recent attempts to use
topologically inspired coordinates in robotics, demonstrate that our approach makes it possible to transfer a large
percentage of grasps between a simulated human hand and a 3-finger Schunk hand.
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Download this publicationBibtex
@inproceedings{zarubin2013a,
author = {Zarubin, Dmitry and Pokorny, Florian T. and Song, Dan and Toussaint, Marc and Kragic, Danica},
booktitle = {Hand Synergies - how to tame the complexity of grapsing,
Workshop, IEEE International Conference on Robotics and Automation (ICRA)},
title = {Topological Synergies for Grasp Transfer},
year = {2013},
address = {Karlsruhe, Germany},
url = {http://www.csc.kth.se/~fpokorny/static/publications/zarubin2013a.pdf}
}