openalexThe international archives of the photogrammetry, remote sensing and spatial information sciences/International archives of the photogrammetry, remote sensing and spatial information sciences2026-07-23
GeoOpen3D: Geometry-guided training-free open-vocabulary 3D segmentation via visual foundation models
Shuai Zhang, Zhuoxiao Li, Ou Jing, Tengxi Wang, Zhecheng Shi, Wufan Zhao
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…