Unknown object grasping by using concavity

Unknown object grasping by using concavity

Lei, Q. (TU Delft OLD Biorobotics)
Wisse, M. (TU Delft OLD Biorobotics)

2016

Reducing the grasp candidates for unknown object grasping while maintaining grasp stability is the goal of this paper. In this paper, we propose an efficient and straight forward unknown object grasping method by using concavities of the unknown objects to significantly reduce the grasp candidates. Shortest path concavity is first employed to work out the concavity value for every vertex of the unknown objects followed by concavity extraction to obtain the most salient concave areas. Grasp candidates are then generated on the most salient concave areas and evaluated by using force balance computation. Grasp candidates are ranked according to the result of force balance computation and the manipulability of every grasp candidate. The grasp with the best force balance and manipulability is chosen as the final grasp. In order to verify the effectiveness of our algorithm, some unknown objects commonly used by other papers about unknown object grasping are used to do simulations and favorable performance is obtained.

concavity
oriented bounding box
robot
unknown object grasping

http://resolver.tudelft.nl/uuid:49712a0e-ad12-42ba-a1b7-80207dc2740a

https://doi.org/10.1109/ICARCV.2016.7838637

IEEE, Piscataway, NJ, USA

978-1-5090-3549-6

Proceedings 2016 14th International Conference on Control, Automation, Robotics and Vision

2016 14th International Conference on Control, Automation, Robotics and Vision, 2016-11-13 → 2016-11-15, Phuket, Thailand

Accepted Author Manuscript

Institutional Repository

conference paper

© 2016 Q. Lei, M. Wisse