Xiao Zheng Xiaoshui Huang Guofeng Mei Yuenan Hou Zhaoyang Lyu Bo Dai 0002 Wanli Ouyang Yongshun Gong Point Cloud Pre-training with Diffusion Models. 2023 abs/2311.14960 CoRR https://doi.org/10.48550/arXiv.2311.14960 db/journals/corr/corr2311.html#abs-2311-14960