Author

Shanshan Pan

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Preprint Oct 2026

CRAB: Cuboid-based Representation for As-built BIM from Point Clouds

As-built BIM reconstruction from point clouds demands semantic, volumetric, parametric, and editable building components, beyond 2D layouts or planar abstractions. Yet existing scan-to-BIM pipelines often rely on handcrafted rules, heuristic optimization, or manual correction, while learning-based methods fall short of...

Hao-Ran Xiong, Jing Wang, Shan-Shan Pan et al. · 0 citations

Jul 2026

TopoGS: Planar Reconstruction via Topology-aware 3D Gaussian Splatting

TopoGS is introduced, the first 3DGS framework to explicitly integrate both planar and topological constraints for coherent 3D reconstruction, providing a highly robust solution for generating accurate, topologically sound, and visually faithful scene representations.

Shanshan Pan, Jia-Lei Chen, Yilin Liu et al. · arXiv.org · 0 citations