Generation of GelSight Tactile Images for Sim2Real Learning



Gomes, Daniel Fernandes, Paoletti, Paolo ORCID: 0000-0001-6131-0377 and Luo, Shan ORCID: 0000-0003-4760-0372
(2021) Generation of GelSight Tactile Images for Sim2Real Learning. IEEE ROBOTICS AND AUTOMATION LETTERS, 6 (2). pp. 4177-4184.

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Abstract

Most current works in Sim2Real learning for robotic manipulation tasks leverage camera vision that may be significantly occluded by robot hands during the manipulation. Tactile sensing offers complementary information to vision and can compensate for the information loss caused by the occlusions. However, the use of tactile sensing is restricted in the Sim2Real research due to no simulated tactile sensors being available. To mitigate the gap, we introduce a novel approach for simulating a GelSight tactile sensor in the commonly used Gazebo simulator. Similar to the real GelSight sensor, the simulated sensor can produce high-resolution images from depth-maps captured by a simulated optical sensor, and reconstruct the interaction between the touched object and an opaque soft membrane. It can indirectly sense forces, geometry, texture and other properties of the object and enables Sim2Real learning with tactile sensing. Preliminary experimental results have shown that the simulated sensor could generate realistic outputs similar to the ones captured by a real GelSight sensor. All the materials used in this letter are available at https://danfergo.github.io/gelsight-simulation.

Item Type: Article
Uncontrolled Keywords: Deep learning methods, data sets for robot learning, force and tactile sensing, transfer learning
Depositing User: Symplectic Admin
Date Deposited: 05 Mar 2021 11:10
Last Modified: 18 Jan 2023 22:57
DOI: 10.1109/LRA.2021.3063925
Open Access URL: https://ieeexplore.ieee.org/document/9369877
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3116580

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