DDS combines multi-granularity distillation from projected 2D features with graph diffusion on superpoints to deliver region-consistent semantic labels for 3D scenes without any dense annotations.
Stratified trans- former for 3d point cloud segmentation
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Distill, Diffuse, and Semanticize (DDS): Annotation-Free 3D Scene Understanding Based on Multi-Granularity Distillation and Graph-Diffusion-Based Segmentation
DDS combines multi-granularity distillation from projected 2D features with graph diffusion on superpoints to deliver region-consistent semantic labels for 3D scenes without any dense annotations.