Glob3R: Global SfM Framework Using 3D Foundation Models
rsasaki0109 · x · 2026-07-31
Glob3R is a scalable global 3D reconstruction framework built on geometric foundation models, jointly developed by HKUST, Alibaba, Nanjing University, and Fudan University.
Core Mechanism
- Multi-view Constraints: Converts dense feed-forward geometric predictions into reliable multi-view tracks.
- Joint Optimization: Jointly refines camera poses and scene geometry through motion averaging and bundle adjustment.
Performance
The framework significantly improves 3D reconstruction accuracy and consistency across long sequences, large-scale scenes, and unordered image collections. The refined camera poses also effectively enhance downstream rendering quality in novel-view synthesis.
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