8 papers
Agentic Building-Aware Satellite Gaussian Splatting for Auditable Urban DSM Reconstruction
Wentao Sun, Zhengsen Xu, Yiping Chen +2
Urban-scale 3D reconstruction from satellite imagery supports disaster response, city monitoring, and geospatial digital twins, yet neural rendering methods typically optimize aver…
When Wider Views Fail: Stress-Testing Feed-Forward 3D Reconstruction
Daisy Li, Kyle Gao, Quanyun Wu +3
Feed-forward 3D reconstruction models enable efficient geometry estimation from sparse images, but their pretrained nature can make them vulnerable to distribution shifts beyond th…
ZVeC: A Zero-Shot Framework for Instance-Level Vehicle Extraction and Generative Point Cloud Completion
Daisy Li, Kyle Gao, Quanyun Wu +3
LiDAR point clouds acquired in underground environments exhibit severe geometric incompleteness due to occlusions and limited sensor viewpoints, making reliable point cloud complet…
Lift, Associate, and Fuse: A Decision-Centric Framework for 2D-to-3D Foundation Model Transfer
Wentao Sun, Yiping Chen, John S. Zelek +1
Methods that transfer predictions from two-dimensional foundation models into three-dimensional segmentation are commonly grouped by task or representation. Those groupings obscure…
CDSeg: A Renderable Gaussian Carrier for Image-to-3D Label Transfer
Wentao Sun, Yiping Chen, Zhengsen Xu +2
Modern image models provide strong cues about \emph{what} should be segmented in each view, but their masks do not by themselves determine \emph{where} those labels should persist…
Out-of-Length Scene Text Recognition: A Two-Axis Diagnosis and a Training-Free Fix
Zobeir Raisi, John Zelek
Scene Text Recognition (STR) models are trained almost exclusively on word crops of at most 25 characters, yet real deployments (signage, product labels, dense captions) require re…
SAGOnline: Segment Any Gaussians Online
Wentao Sun, Quanyun Wu, Hanqing Xu +7
3D Gaussian Splatting has emerged as a powerful paradigm for explicit 3D scene representation, yet achieving efficient and consistent 3D segmentation remains challenging. Existing…
PointGauss: Point Cloud-Guided Multi-Object Segmentation for Gaussian Splatting
Wentao Sun, Yiping Chen, John S. Zelek +1
While 3D Gaussian Splatting (3DGS) has established new standards for high-fidelity 3D scene modeling, interpreting massive, unstructured Gaussian primitives into meaningful geospat…