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arXiv 2610.22363cs.CVcs.RO

感知、预测与规划:用于自我中心灵巧操作的统一世界动作模型

Perceive, Predict, and Plan: a Unified World Action Model for Egocentric Dexterous Manipulation

HKUST (GZ)(香港科技大学(广州));Primatix;ETH Zurich(苏黎世联邦理工学院);University of Oxford(牛津大学);HKUST(香港科技大学);University of St. Gallen(圣加仑大学)

Zirui Wu, Chen Guo, Tianjian Jiang, Zeren Jiang, Zeming Li, Lingchen Yang, Longteng Duan, Ying Xue, Handi Yin, Shenyuan Gao, Martin R. Oswald, Jun Zhang, Ping Tan, Jie Song

AI总结:

该研究提出P³-WAM统一世界动作模型,通过三种互补模式实现自我中心灵巧操作,经统一训练后在多任务上优于专门基线,提升了规划等能力。

摘要:

我们提出P³-WAM,这是一种用于自我中心灵巧操作的统一世界动作模型,它通过三种互补模式学习3D感知、动作条件预测和目标导向规划:感知模式从视频中重建关节手运动和相机轨迹;预测模式在给定动作下生成视觉未来;规划模式在初始图像、语言指令和可选视觉目标的条件下,联合生成动作轨迹及其预期视觉结果。我们的模型通过具有共享基础权重、模态特定适配和双向视觉-动作注意力的混合Transformer架构,将紧凑结构化的3D动作表示集成到预训练视频扩散Transformer中。随机模态可见性使视频和3D动作在三种模式中既可以作为条件上下文,也可以作为预测目标。实验表明,统一训练比单模式训练提升了所有三种能力,包括在视觉语言模型评估下规划质量的提升。通过统一训练,我们的模型在四个数据集上的3D手重建和动作条件视频预测任务中优于专门的基线,同时生成的目标导向操作视频比视频生成基线具有更强的指令遵循性和动作进展。

英文摘要:

We introduce P$^{3}$-WAM, a unified world action model for egocentric dexterous manipulation that learns 3D perception, action-conditioned prediction, and goal-directed planning through three complementary modes: Perceive, which reconstructs articulated hand motion and camera trajectories from video; Predict, which generates visual futures under prescribed actions; and Plan, which jointly generates action trajectories and their anticipated visual consequences conditioned on an initial image, a language instruction, and an optional visual goal. Our model integrates a compact, structured 3D action representation into a pretrained video diffusion transformer through a mixture-of-transformers architecture with shared base weights, modality-specific adaptation, and bidirectional visual-action attention. Randomized modality visibility lets video and 3D actions serve as either conditioning context or prediction targets across the three modes. Experiments show that unified training improves all three capabilities over single-mode training, including gains in planning quality under a vision-language model evaluation. Through unified training, our model outperforms specialized baselines on 3D hand reconstruction and action-conditioned video prediction across four datasets, while producing goal-directed manipulation videos with stronger instruction adherence and action progression than video-generation baselines. Project Page: https://p3-wam.pages.dev/

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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