RPG: 人間型格闘における複数スキル遷移のためのロバストなポリシーゲーティング
RPG: Robust Policy Gating for Smooth Multi-Skill Transitions in Humanoid Fighting
人間型ロボットの格闘動作において、複数のスキルを切り替える際の不安定さを解決するため、遷移ランダム化と時間ランダム化を用いたハイブリッド専門家ポリシーフレームワークを提案し、シミュレーションと実機で検証した。
詳しい要約
1. どんなもの?
2. 先行研究と比べてどこがすごい?
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著者: Yucheng Xin, Jiacheng Bao, Yubo Dong, Xueqian Wang, Bin Zhao, Xuelong Li, Junbo Tan, Dong Wang
分類: cs.RO
原文アブストラクト
Humanoid robots have demonstrated impressive motor skills in a wide range of tasks, yet whole-body control for humanlike long-time, dynamic fighting remains particularly challenging due to the stringent requirements on agility and stability. While imitation learning enables robots to execute human-like fighting skills, existing approaches often rely on switching among multiple single-skill policies or employing a general policy to imitate input reference motions. These strategies suffer from instability when transitioning between skills, as the mismatch of initial and terminal states across skills or reference motions introduces out-of-domain disturbances, resulting in unsmooth or unstable behaviors. In this work, we propose RPG, a hybrid expert policy framework, for smooth and stable humanoid multi-skills transition. Our approach incorporates motion transition randomization and temporal randomization to train a unified policy that generates agile fighting actions with stability and smoothness during skill transitions. Furthermore, we design a control pipeline that integrates walking/running locomotion with fighting skills, allowing humanlike long-time combat of arbitrary duration that can be seamlessly interrupted or transit action policies at any time. Extensive experiments in simulation demonstrate the effectiveness of the proposed framework, and real-world deployment on the Unitree G1 humanoid robot further validates its robustness and applicability.
