用人体动作片段生成机器人可执行的风格化运动,实现自然流畅的全身控制。
Bionic Human-Motion Style Transfer for Physically Executable Whole-Body Control of Humanoid Robots

- 基于人体动作风格生成机器人参考轨迹,融合内容与风格条件。
- 在125次真实机器人实验中达到96.0%成功率,减少接触和抖动伪影。
- 适合需要自然表达性运动的仿人机器人应用,如服务或交互场景。
在人类环境中运行的仿人机器人需要兼具稳定性与可读性强的全身动作表现。然而,现有方法多依赖固定示范或手动设计脚本,难以跨内容复用动作风格。受人类通过步态节奏、姿态、手臂摆动与身体晃动传递情感与意图的启发,本文提出一种仿生生成-控制框架,实现以短时人体风格示例驱动的全身动作风格迁移。给定一个简短的人体风格样本和目标动作内容,该框架生成保持原始动作语义但融合示范风格的全身参考轨迹。采用物理感知的多条件隐扩散模型融合风格、内容与轨迹条件,并使用无分类器引导调节风格强度而无需重新训练。为提升硬件可执行性,训练过程中引入接触一致性与时间平滑正则化。生成的参考轨迹经转换后由基于聚类-蒸馏策略训练的预览式全身跟踪策略执行。仿真与Unitree G1机器人实验表明,该方法能将短人体风格示例迁移到多样动作内容中,相比动画导向的风格迁移基线显著降低接触与抖动伪影,在125次真实机器人测试中取得96.0%的成功率。结果证明,短时人体动作示例可作为可复用的仿生源,实现物理可执行的表达性仿人运动。
原文摘要 · Abstract (English)
Expressive whole-body motion is important for humanoid robots operating in human environments, where robots are expected to move stably while presenting readable and adjustable body behaviors. However, most expressive motions are still obtained from fixed demonstrations or manually designed scripts, making it difficult to reuse a demonstrated style across different motion contents. Inspired by the way human motion styles convey affective and intentional cues through gait rhythm, posture, arm swing and body sway, this paper proposes a bionic generation-to-control framework for exemplar-driven style transfer on humanoid robots. Given a short human style exemplar and a target content motion, the proposed framework generates a stylized whole-body reference that preserves the intended motion content while transferring the demonstrated style. A physics-aware multi-condition latent diffusion model is developed to fuse style, content and trajectory conditions, and classifier-free guidance is used to adjust the style intensity without retraining. To improve hardware executability, contact-consistency and temporal-smoothness regularization are imposed on decoded motions during training. The generated references are then converted into G1-compatible robot references and executed by a preview-based whole-body tracking policy trained with a cluster-and-distill strategy. Simulation and Unitree G1 experiments show that the proposed method can transfer short human style exemplars to diverse robot motion contents, reduce contact and jitter artifacts compared with animation-oriented style-transfer baselines, and achieve a 96.0% success rate over 125 reported real-robot trials. The results demonstrate the feasibility of using short human motion exemplars as reusable bionic sources for physically executable expressive humanoid motion.
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