3 papers
cs.CV2026
A Large-Scale Remote Sensing Dataset and VLM-based Algorithm for Fine-Grained Road Hierarchy Classification
Ting Han, Xiangyi Xie, Yiping Chen +5
In this work, we present SYSU-HiRoads, a large-scale hierarchical road dataset, and RoadReasoner, a vision-language-geometry framework for automatic multi-grade road mapping from r…
cs.CV2025
Semantic4Safety: Causal Insights from Zero-shot Street View Imagery Segmentation for Urban Road Safety
Huan Chen, Ting Han, Siyu Chen +3
Street-view imagery (SVI) offers a fine-grained lens on traffic risk, yet two fundamental challenges persist: (1) how to construct street-level indicators that capture accident-rel…
cs.CY2025
GBA-UBF : A Large-Scale and Fine-Grained Building Function Classification Dataset in the Greater Bay Area
Chunsong Chen, Yichen Hou, Huan Chen +5
Rapid urbanization in the Guangdong-Hong Kong-Macao Greater Bay Area (GBA) has created urgent demand for high-resolution, building-level functional data to support sustainable spat…