CF3d: Category fused 3D point cloud retrieval

Zongyi Xu, Ruicheng Zhang, Zuo Li, Shiyang Cheng, Huiyu Zhou, Weisheng Li, Xinbo Gao

Abstract: Highlights•We propose a category-fused retrieval method to integrate geometry and semantics.•We foster an intra-class constraint loss to boost retrieval accuracy and robustness.•We introduce an offset-attention module to enhance 3D object semantic retrieval.