Author

Huan Ni

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Preprint Oct 2026

A Geometric-Transformation Feature-Adaptive Manifold Restoration Method for Open-Vocabulary Semantic Segmentation of Remote Sensing Images

The semantic information of objects in remote sensing images is typically invariant to geometric transformations from the dihedral group D4. However, SAM3-based open-vocabulary semantic segmentation (OVSS) methods often exhibit inconsistent responses to different geometric transformations. To exploit this property and...

Jian-Zheng Wang, Huan Ni, Xiao-Nan Niu et al. · 0 citations

Jul 2026

Training-Free Entity-Level Few-Shot Segmentation of Remote Sensing Images with Advection Refinement

This work first leverage SAM3's generic geometric priors to generate category-agnostic entity primitives, and introduces an advection equation-based semantic refinement mechanism to propagate category-aware information across both feature and similarity spaces, enhancing semantic continuity and suppressing local textur...

X. Bai, Huan Ni · arXiv.org · 0 citations