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Abstract
The use of tactile feedback for precision manipulation in robotics still lags far behind human capabilities. This study has two principal aims: 1) to demonstrate in-hand reorientation of grasped objects through active tactile manipulation; and 2) to present the development of a novel TacTip sensor and a GR2 gripper platform for tactile manipulation. Through the use of Bayesian active perception algorithms, the system successfully achieved inhand reorientation of cylinders of different diameters (20, 25, 30, and 35 mm) using tactile feedback. Average orientation errors along manipulation trajectories were below 5° for all cylinders with reorientation ranges varying from 42° to 67°. We also demonstrated an improvement in active tactile manipulation accuracy when using additional training data. Our methods for active tactile manipulation with the GR2 TacTip gripper are model free, can be used to investigate principles of dexterous manipulation, and could lead to essential advances in the areas of robotic tactile manipulation and teleoperated robots.
Original language | English |
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Article number | 7959088 |
Pages (from-to) | 2056-2063 |
Number of pages | 8 |
Journal | IEEE Robotics and Automation Letters |
Volume | 2 |
Issue number | 4 |
Early online date | 26 Jun 2017 |
DOIs | |
Publication status | Published - Oct 2017 |
Keywords
- Dexterous manipulation
- force and tactile sensing
- grippers and other end-effectors
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Model-free precise in-hand manipulation with a 3d-printed tactile gripper
Lepora, N. F. (Creator), Ward-Cherrier, B. (Creator) & Rojas, N. (Contributor), University of Bristol, 16 Jun 2017
DOI: 10.5523/bris.39s7vsflucpqm2htfr3vo5bg62, http://data.bris.ac.uk/data/dataset/39s7vsflucpqm2htfr3vo5bg62
Dataset