4 papers
GeoLift: Grounding Video Spatial Reasoning in Explicit 3D Maps
Xinglin Li, TingTing Long, Jingzhi Zhou +3
Video spatial reasoning requires multimodal large language models (MLLMs) to understand how objects are arranged and related across viewpoints. While these models can recognize obj…
MV3DIS: Multi-View Mask Matching via 3D Guides for Zero-Shot 3D Instance Segmentation
Yibo Zhao, Yigong Zhang, Jin Xie
Conventional 3D instance segmentation methods rely on labor-intensive 3D annotations for supervised training, which limits their scalability and generalization to novel objects. Re…
Sketchy Bounding-box Supervision for 3D Instance Segmentation
Qian Deng, Le Hui, Jin Xie +1
Bounding box supervision has gained considerable attention in weakly supervised 3D instance segmentation. While this approach alleviates the need for extensive point-level annotati…
SPGroup3D: Superpoint Grouping Network for Indoor 3D Object Detection
Yun Zhu, Le Hui, Yaqi Shen +1
Current 3D object detection methods for indoor scenes mainly follow the voting-and-grouping strategy to generate proposals. However, most methods utilize instance-agnostic grouping…