4 papers
Building age estimation based on widely available multi-source geospatial data
Jialu Sui, Hongsheng Zhang, Rui Liu +4
Building age is fundamental for urban infrastructure safety, operation, and planning, as it directly affects structural safety, and sustainable development. Existing methods mostly…
Wetland mapping from sparse annotations with satellite image time series and temporal-aware segment anything model
Shuai Yuan, Tianwu Lin, Shuang Chen +8
Accurate wetland mapping is essential for ecosystem monitoring, yet dense pixel-level annotation is prohibitively expensive and practical applications usually rely on sparse point…
Democratizing planetary-scale analysis: An ultra-lightweight Earth embedding database for accurate and flexible global land monitoring
Shuang Chen, Jie Wang, Shuai Yuan +15
The rapid evolution of satellite-borne Earth Observation (EO) systems has revolutionized terrestrial monitoring, yielding petabyte-scale archives. However, the immense computationa…
OCCDiff: Occupancy Diffusion Model for High-Fidelity 3D Building Reconstruction from Noisy Point Clouds
Jialu Sui, Rui Liu, Hongsheng Zhang
A major challenge in reconstructing buildings from LiDAR point clouds lies in accurately capturing building surfaces under varying point densities and noise interference. To flexib…