4 papers
MoT3DVG: A Benchmark for Outdoor 3D Visual Grounding with Motion-Aware Descriptions and Temporal Cues
Shijia Zhao, Xusheng Guo, Qiming Xia +4
3D visual grounding (3DVG) localizes language-referred objects in 3D scenes, with broad applicability in both indoor and outdoor environments. However, existing 3DVG research focus…
Unsupervised Point Cloud Registration via Training-Time Semantic Guidance
Kezheng Xiong, Shiyun Xu, Sheng Ao +3
Unsupervised registration of large-scale LiDAR point clouds remains challenging due to the geometric ambiguity inherent in outdoor scenes, which degrades pseudo-label quality and l…
Mining and Transferring Feature-Geometry Coherence for Unsupervised Point Cloud Registration
Kezheng Xiong, Haoen Xiang, Qingshan Xu +4
Point cloud registration, a fundamental task in 3D vision, has achieved remarkable success with learning-based methods in outdoor environments. Unsupervised outdoor point cloud reg…
SPEAL: Skeletal Prior Embedded Attention Learning for Cross-Source Point Cloud Registration
Kezheng Xiong, Maoji Zheng, Qingshan Xu +3
Point cloud registration, a fundamental task in 3D computer vision, has remained largely unexplored in cross-source point clouds and unstructured scenes. The primary challenges ari…