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Open access 2026

Volume Change Analysis in Environmental Point Clouds

Observation of landscape change is essential for strategic planning, risk assessment, and disaster prevention in volatile environments, especially on steep rocky slopes and cliffs where rockfalls can endanger human lives. To support the analysis of large point cloud scans of these environments, we propose a novel metho...

Gorazd Gorup, Ciril Bohak · 0 citations
Open access Sep 2026

Platform Visibility and Spatial Representation in Industrial Heritage Regeneration

User-generated content (UGC) is increasingly used to inform heritage planning, yet platform visibility may not reflect the spatial elements that require management attention. Using Hangzhou Steel Park as a case study, this study compares 3521 online posts (containing 18,827 images in total) from four platforms with 268...

Hao-Dong Wu, Yin-Ying Tao, Yue Jin et al. · 0 citations
Preprint Aug 2026

CoST: Semantic-Aware Urban Understanding via Spatial-Temporal Alignment

Geospatial representation learning from satellite imagery is a fundamental problem for large-scale urban analysis and real-world applications. Despite recent advances, current methods struggle with cross-region generalization and semantic interpretability due to their reliance on region-specific auxiliary data and the...

Yutian Jiang, Jiabo Liu, Xixuan Hao et al. · 1 citation
Open access Jan 2027

Automated Roadside Vegetation Management Using LiDAR-Based Geospatial Simulations

Effective roadside vegetation management is vital for safety, visibility, and infrastructure longevity. Traditional methods are often labor-intensive, time-consuming, and difficult to scale. This paper presents a novel approach leveraging light detection and ranging (LiDAR) data and geospatial analysis for large-scal...

Varun Kumar Reja, Tom Kelly, Xiao Wen et al. · 0 citations
Open access Sep 2026

From Planning Question to Spatial Database: A Geospatial Data Scheme-Aware Importer for Urban Digital Twins

Urban Digital Twins (UDTs) promise cross-sector, evidence-based planning support, yet a foundational challenge persists: ingesting heterogeneous, multi-source geospatial data into a unified, queryable spatial database. This paper presents a manual methodology for translating spatial planning questions and an open-sourc...

Iván Cárdenas-León, M. Koeva, P. Nourian et al. · 0 citations
Open access Sep 2026

Assessing and fixing LOD2 building models for Urban Energy Digital Twin

Recent advances in 3D reconstruction have enabled the automated generation of city models from LiDAR point clouds and aerial imagery. Although these methods produce visually convincing models, they are primarily designed for visualization purposes and often lack the geometric and topological quality required for Urban...

O. Roman, G. Agugiaro, Ken Arroyo Ohori et al. · 0 citations

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