TopoGS is a topology-aware anchor feature aggregation framework with two lightweight components that establishes bidirectional cross-level gradient pathways by fusing per-level context triplets with a residual MLP and applies soft weighting to accommodate varying topological sparsity.
Wei Zhang, Shi-Qiang Gong, Sheng-Kai Yu et al.· 0 citations
This work proposes Scene Geometric Invariant Anchoring (SGIA), which extracts dominant geometric invariants from each chunk's predicted point cloud via coarse-to-fine robust estimation and exploits their cross-chunk consistency to establish scale constraints independent of point cloud registration.
Wei Zhang, Yihang Wu, Song Li et al.· 2 citations· ⚡1
This review categorizes the field into five representative paradigms: geometry-based Structure from Motion, learning-based Multi-view Stereo, Neural Radiance Fields, 3D Gaussian Splatting, and recent feed-forward geometric models.