Preprint
Oct 2026
Dyna3: VLM-Guided Training-Free 4D Reconstruction via Depth Foundation Models
Recent depth foundation models like Depth Anything 3 (DA3) achieve remarkable multi-view depth estimation but assume static 3D scenes, limiting their applicability to real-world dynamic environments. Existing training-free 4D methods like Easi3R and VGGT4D rely on correspondence-trained backbones whose attention encode...
Xin-Hao Xiang, Wei-Yang Li, Zhi-Jie Zheng et al.
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