The paper builds a training-free, open-vocabulary 3D detector by lifting GroundingDINO and SAM 2D proposals into LiDAR or pseudo-depth point clouds, reaching about 30% mAP on nuScenes mini.
nuscenes: A multimodal dataset for autonomous driv- ing
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Just Add Geometry: Gradient-Free Open-Vocabulary 3D Detection Without Human-in-the-Loop
The paper builds a training-free, open-vocabulary 3D detector by lifting GroundingDINO and SAM 2D proposals into LiDAR or pseudo-depth point clouds, reaching about 30% mAP on nuScenes mini.