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arXiv 2203.00733cs.RO
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从人的示范中把握任务

Task-grasping from human demonstration

Microsoft(微软);Tokyo Institute of Technology(东京工业大学)

Daichi Saito, Kazuhiro Sasabuchi, Naoki Wake, Jun Takamatsu, Hideki Koike, Katsushi Ikeuchi

摘要:

机器人抓取的一个挑战是实现任务抓取,即在抓取前后选择一个有利于任务成功的抓取。解决这一困难的框架之一是从观察中学习(LfO),它从人类演示中获得各种提示。本文解决了LfO框架下抓取技能中的三个问题:1)如何在有限抓取能力的机器人上功能性地模仿人类演示的抓取; 2)如何协调抓取技能与到达身体模仿; 3)如何在物体姿态和形状不确定的情况下鲁棒地执行抓取。提出了一种使用基于接触网的奖励和接近方向的域随机化的深度强化学习来实现这种鲁棒的模仿抓取技能。实验结果表明,训练后的抓取技能可以应用于LfO系统,并在实际机器人上执行。此外,它示出的训练技能是鲁棒的对象姿势和对象形状的不确定性的错误,并可以与各种到达协调相结合。

英文摘要:

A challenge in robot grasping is to achieve task-grasping which is to select a grasp that is advantageous to the success of tasks before and after grasps. One of the frameworks to address this difficulty is Learning-from-Observation (LfO), which obtains various hints from human demonstrations. This paper solves three issues in the grasping skills in the LfO framework: 1) how to functionally mimic human-demonstrated grasps to robots with limited grasp capability, 2) how to coordinate grasp skills with reaching body mimicking, 3) how to robustly perform grasps under object pose and shape uncertainty. A deep reinforcement learning using contact-web based rewards and domain randomization of approach directions is proposed to achieve such robust mimicked grasping skills. Experiment results show that the trained grasping skills can be applied in an LfO system and executed on a real robot. In addition, it is shown that the trained skill is robust to errors in the object pose and to the uncertainty of the object shape and can be combined with various reach-coordination.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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