3D grounding aims to localize target entities in complex scenes from natural language and plays a fundamental role in embodied perception and spatial reasoning. However, existing approaches mostly rely on feature similarity or direct matching, making it difficult to connect natural-language intent with the implicit sem...
Shuai Zhang, Hong-Ye Hou, Qing-He Liu et al.· 0 citations
We study how to update a pre-built aerial scene with a newly captured, unposed ground-view sequence. The aerial scene already contains a reliable metric Structure-from-Motion (SfM) reconstruction and a pre-trained 3D Gaussian Splatting (3DGS) model, whereas the ground-view sequence is collected later to add street-leve...
Zhuo-Xiao Li, Xin-Yi Liu, Tao-Yu Wu et al.· 0 citations
Abstract. Open-vocabulary 3D segmentation offers an attractive alternative to closed-set scene parsing, yet directly transferring 2D vision-language models to outdoor point clouds remains difficult because projection disrupts geometric continuity and sparse sampling weakens mask quality. This paper presents GeoOpen3D,...
Shuai Zhang, Zhuo Li, Jing Ou et al.· The International Archives o...· 0 citations
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