PoinTr: Diverse Point Cloud Completion with Geometry-Aware Transformers
         Xumin Yu*, Yongming Rao*, Ziyi Wang, Zuyan Liu, Jiwen Lu, Jie Zhou
              Department of Automation, Tsinghua University, China
            State Key Lab of Intelligent Technologies and Systems, China
       Beijing National Research Center for Information Science and Technology, China
              yuxm20@mails.tsinghua.edu.cn; raoyongming95@gmail.com;
      {wziyi20, liuzuyan19}@mails.tsinghua.edu.cn; {luji ...