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arXiv 2203.05973cs.ROcs.LG
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基于一致性的模仿和适应:四足机器人使用深度强化学习从视频中模仿动物

Imitation and Adaptation Based on Consistency: A Quadruped Robot Imitates Animals from Videos Using Deep Reinforcement Learning

Shenyang Institute of Automation, Chinese Academy of Sciences(中国科学院沈阳自动化研究所);Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences(中国科学院机器人与智能制造创新研究院);Westlake University(西湖大学);University of Chinese Academy of Sciences(中国科学院大学)

Qingfeng Yao, Jilong Wang, Shuyu Yang, Cong Wang, Hongyin Zhang, Qifeng Zhang, Donglin Wang

摘要:

四足动物动作的实质是重心的移动,重心的移动在四足动物的动作中具有一定的规律性。然而,四足机器人的步态运动规划是耗时的。自然界中的动物可以提供大量的步态信息供机器人学习和模仿。常见的方法是通过动作捕捉系统或大量的动作数据点来学习动物的姿势。在本文中,我们提出了一个视频模仿自适应网络(VIAN),可以模仿动物的动作,并适应它的机器人从几秒钟的视频。深度学习模型从视频中提取动物运动过程中的关键点。VIAN利用运动适配器消除噪声并提取运动的关键信息,然后将提取的运动函数作为运动模式应用于深度强化学习(DRL)。为了确保学习结果与视频中的动物运动之间的相似性,我们引入了基于运动一致性的奖励。DRL从视频中的运动模式中探索和学习保持平衡,模仿动物的动作,最终允许模型从不同动物的短运动视频中学习步态或技能,并将运动模式转移到真实的机器人上。

英文摘要:

The essence of quadrupeds' movements is the movement of the center of gravity, which has a pattern in the action of quadrupeds. However, the gait motion planning of the quadruped robot is time-consuming. Animals in nature can provide a large amount of gait information for robots to learn and imitate. Common methods learn animal posture with a motion capture system or numerous motion data points. In this paper, we propose a video imitation adaptation network (VIAN) that can imitate the action of animals and adapt it to the robot from a few seconds of video. The deep learning model extracts key points during animal motion from videos. The VIAN eliminates noise and extracts key information of motion with a motion adaptor, and then applies the extracted movements function as the motion pattern into deep reinforcement learning (DRL). To ensure similarity between the learning result and the animal motion in the video, we introduce rewards that are based on the consistency of the motion. DRL explores and learns to maintain balance from movement patterns from videos, imitates the action of animals, and eventually, allows the model to learn the gait or skills from short motion videos of different animals and to transfer the motion pattern to the real robot.

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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