ロボット中心の映像合成による形態整合的な人型ロボットインタラクション
Morphology-Consistent Humanoid Interaction through Robot-Centric Video Synthesis
人型ロボットの対話スキルを、ポリシー学習や人間の動作リターゲティングに頼らず、映像生成モデルでロボット自身の動作を合成し、そこから関節軌道を抽出して実行するゼロショット手法を提案した。
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?
3. 技術・手法の肝は?
4. どうやって有効だと検証した?
5. 議論はある?
6. 次に読むべき論文は?
※ AIが要旨から生成した要約です。正確性は原文をご確認ください。
著者: Weisheng Xu, Jian Li, Yi Gu, Bin Yang, Haodong Chen, Shuyi Lin, Mingqian Zhou, Jing Tan, Qiwei Wu, Xiangrui Jiang, Taowen Wang, Jiawen Wen, Qiwei Liang, Jiaxi Zhang, Renjing Xu
分類: cs.RO
原文アブストラクト
Equipping humanoid robots with versatile interaction skills typically requires either extensive policy training or explicit human-to-robot motion retargeting. However, learning-based policies face prohibitive data collection costs. Meanwhile, retargeting relies on human-centric pose estimation (e.g., SMPL), introducing a morphology gap. Skeletal scale mismatches result in severe spatial misalignments when mapped to robots, compromising interaction success. In this work, we propose Dream2Act, a robot-centric framework enabling zero-shot interaction through generative video synthesis. Given a third-person image of the robot and target object, our framework leverages video generation models to envision the robot completing the task with morphology-consistent motion. We employ a high-fidelity pose extraction system to recover physically feasible, robot-native joint trajectories from these synthesized dreams, subsequently executed via a general-purpose whole-body controller. Operating strictly within the robot-native coordinate space, Dream2Act avoids retargeting errors and eliminates task-specific policy training. We evaluate Dream2Act on the Unitree G1 across four whole-body mobile interaction tasks: ball kicking, sofa sitting, bag punching, and box hugging. Dream2Act achieves a 37.5% overall success rate, compared to 0% for conventional retargeting. While retargeting fails to establish correct physical contacts due to the morphology gap (with errors compounded during locomotion), Dream2Act maintains robot-consistent spatial alignment, enabling reliable contact formation and substantially higher task completion.
