Soft Contact Simulation and Manipulation Learning of Deformable Objects with Vision-based Tactile Sensor

Fuente: arXiv
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Autores principales: Shan, Jianhua, Sun, Yuhao, Zhang, Shixin, Sun, Fuchun, Chen, Zixi, Shen, Zirong, Stefanini, Cesare, Yang, Yiyong, Luo, Shan, Fang, Bin
Formato: Preprint
Publicado: 2024
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author Shan, Jianhua
Sun, Yuhao
Zhang, Shixin
Sun, Fuchun
Chen, Zixi
Shen, Zirong
Stefanini, Cesare
Yang, Yiyong
Luo, Shan
Fang, Bin
author_facet Shan, Jianhua
Sun, Yuhao
Zhang, Shixin
Sun, Fuchun
Chen, Zixi
Shen, Zirong
Stefanini, Cesare
Yang, Yiyong
Luo, Shan
Fang, Bin
contents Deformable object manipulation is a classical and challenging research area in robotics. Compared with rigid object manipulation, this problem is more complex due to the deformation properties including elastic, plastic, and elastoplastic deformation. In this paper, we describe a new deformable object manipulation method including soft contact simulation, manipulation learning, and sim-to-real transfer. We propose a novel approach utilizing Vision-Based Tactile Sensors (VBTSs) as the end-effector in simulation to produce observations like relative position, squeezed area, and object contour, which are transferable to real robots. For a more realistic contact simulation, a new simulation environment including elastic, plastic, and elastoplastic deformations is created. We utilize RL strategies to train agents in the simulation, and expert demonstrations are applied for challenging tasks. Finally, we build a real experimental platform to complete the sim-to-real transfer and achieve a 90% success rate on difficult tasks such as cylinder and sphere. To test the robustness of our method, we use plasticine of different hardness and sizes to repeat the tasks including cylinder and sphere. The experimental results show superior performances of deformable object manipulation with the proposed method.
format Preprint
id arxiv_https___arxiv_org_abs_2405_07237
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Soft Contact Simulation and Manipulation Learning of Deformable Objects with Vision-based Tactile Sensor
Shan, Jianhua
Sun, Yuhao
Zhang, Shixin
Sun, Fuchun
Chen, Zixi
Shen, Zirong
Stefanini, Cesare
Yang, Yiyong
Luo, Shan
Fang, Bin
Robotics
Deformable object manipulation is a classical and challenging research area in robotics. Compared with rigid object manipulation, this problem is more complex due to the deformation properties including elastic, plastic, and elastoplastic deformation. In this paper, we describe a new deformable object manipulation method including soft contact simulation, manipulation learning, and sim-to-real transfer. We propose a novel approach utilizing Vision-Based Tactile Sensors (VBTSs) as the end-effector in simulation to produce observations like relative position, squeezed area, and object contour, which are transferable to real robots. For a more realistic contact simulation, a new simulation environment including elastic, plastic, and elastoplastic deformations is created. We utilize RL strategies to train agents in the simulation, and expert demonstrations are applied for challenging tasks. Finally, we build a real experimental platform to complete the sim-to-real transfer and achieve a 90% success rate on difficult tasks such as cylinder and sphere. To test the robustness of our method, we use plasticine of different hardness and sizes to repeat the tasks including cylinder and sphere. The experimental results show superior performances of deformable object manipulation with the proposed method.
title Soft Contact Simulation and Manipulation Learning of Deformable Objects with Vision-based Tactile Sensor
topic Robotics
url https://arxiv.org/abs/2405.07237