Grasp Stability Prediction with Sim-to-Real Transfer from Tactile Sensing

Grasp Stability Prediction with Sim-to-Real Transfer from Tactile Sensing
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通过触觉传感模拟到真实的转换来预测抓取稳定性

DOI:
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发表时间:
2022
期刊:
IEEE/RJS International Conference on Intelligent RObots and Systems
影响因子:
--
通讯作者:
Wenzhen Yuan
Wenzhen Yuan
中科院分区:
--
文献类型:
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作者:
Zilin Si;Zirui Zhu;Arpit Agarwal;Stuart Anderson;Wenzhen Yuan

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Robot simulation has been an essential tool for data-driven manipulation tasks. However, most existing simulation frameworks lack either efficient and accurate models of physical interactions with tactile sensors or realistic tactile simulation. This makes the sim-to-real transfer for tactile-based manipulation tasks still challenging. In this work, we integrate simulation of robot dynamics and vision-based tactile sensors by modeling the physics of contact. This contact model uses simulated contact forces at the robot's end-effector to inform the generation of realistic tactile outputs. To eliminate the sim-to-real transfer gap, we calibrate our physics simulator of robot dynamics, contact model, and tactile optical simulator with real-world data, and then we demonstrate the effectiveness of our system on a zero-shot sim-to-real grasp stability prediction task where we achieve an average accuracy of 90.7% on various objects. Experiments reveal the potential of applying our simulation framework to more complicated manipulation tasks. We open-source our simulation framework at https://github.com/CMURoboTouch/Taxim/tree/taxim-robot.
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