Author

Fangzhou Hong

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Preprint Sep 2026

EgoTools: Towards Tool-Centric Reasoning in Real-World Egocentric Videos

Real-world embodied tasks, from everyday activities to professional procedures, require agents to act under physical constraints while tracking evolving object and task states. Tool use sits at the heart of such tasks, as many everyday and professional activities are tool-mediated. Understanding them requires reasoning...

Shu-Lin Tian, Junsu Kim, Shuai Liu et al. · 0 citations

Jul 2026

IGGT4D: Streaming 4D Instance-Grounded Geometry Transformer

Experiments on 3D reconstruction, pose estimation, instance spatial tracking, and open-vocabulary segmentation demonstrate that IGGT4D outperforms existing streaming baselines while maintaining scalable online inference for long dynamic sequences.

Zheng-Yu Zou, Hao Li, Kuixuan Jiao et al. · arXiv.org · 1 citation