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arXiv 2603.04090cs.CVcs.GRcs.HC

EgoPoseFormer v2:面向AR/VR的精准自体中心人体运动估计

EgoPoseFormer v2: Accurate Egocentric Human Motion Estimation for AR/VR

Meta;KAUST;Max Planck Institute for Intelligent Systems(马克斯·普朗克智能系统研究所)
Zhenyu Li, Sai Kumar Dwivedi, Filip Maric, Carlos Chacon, Nadine Bertsch, Filippo Arcadu, Tomas Hodan, Michael Ramamonjisoa, Peter Wonka, Amy Zhao, Robin Kips, … 展开作者

Zhenyu Li, Sai Kumar Dwivedi, Filip Maric, Carlos Chacon, Nadine Bertsch, Filippo Arcadu, Tomas Hodan, Michael Ramamonjisoa, Peter Wonka, Amy Zhao, Robin Kips, Cem Keskin, Anastasia Tkach, Chenhongyi Yang

AI总结:

EgoPoseFormer v2通过Transformer模型和自动标注系统,在AR/VR中实现更准确的自体中心人体运动估计,准确率提升12.2%-19.4%,时间抖动降低22.2%-51.7%。

摘要:

自体中心人体运动估计对于AR/VR体验至关重要,但受限于自体中心视角的肢体覆盖有限、频繁遮挡以及标注数据稀缺而面临挑战。我们提出了EgoPoseFormer v2,通过两个关键贡献来解决这些挑战:(1)基于Transformer的模型用于时间一致且空间定位的肢体姿态估计;(2)一个自动标注系统,使能够利用大规模未标注数据集进行训练。我们的模型是完全可微的,引入了身份条件查询、多视角空间细化、因果时间注意力机制,并在恒定计算预算下支持关键点和参数化身体表示。自动标注系统通过不确定性感知的半监督训练将学习扩展到数千万个未标注帧。系统遵循教师-学生架构生成伪标签,并通过不确定性蒸馏引导训练,使模型能够泛化到不同环境。在EgoBody3M基准测试中,模型在GPU上具有0.8毫秒的延迟,其在准确率上比两种最先进的方法分别提高了12.2%和19.4%,并且将时间抖动减少了22.2%和51.7%。此外,我们的自动标注系统进一步将手腕MPJPE提高了13.1%。

英文摘要:

Egocentric human motion estimation is essential for AR/VR experiences, yet remains challenging due to limited body coverage from the egocentric viewpoint, frequent occlusions, and scarce labeled data. We present EgoPoseFormer v2, a method that addresses these challenges through two key contributions: (1) a transformer-based model for temporally consistent and spatially grounded body pose estimation, and (2) an auto-labeling system that enables the use of large unlabeled datasets for training. Our model is fully differentiable, introduces identity-conditioned queries, multi-view spatial refinement, causal temporal attention, and supports both keypoints and parametric body representations under a constant compute budget. The auto-labeling system scales learning to tens of millions of unlabeled frames via uncertainty-aware semi-supervised training. The system follows a teacher-student schema to generate pseudo-labels and guide training with uncertainty distillation, enabling the model to generalize to different environments. On the EgoBody3M benchmark, with a 0.8 ms latency on GPU, our model outperforms two state-of-the-art methods by 12.2% and 19.4% in accuracy, and reduces temporal jitter by 22.2% and 51.7%. Furthermore, our auto-labeling system further improves the wrist MPJPE by 13.1%.

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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