%0 Journal Article %T Research on Fast Pre-Processing Method of Tunnel Point Cloud Data in Complex Environment %A Zhu, Ming %A Leng, Biao %A Xiao, Chunhong %A Hou, Gaopeng %A Yao, Xiangchen %A Li, Kai %J Journal of Physics Conference Series %V 2185 %N 1 %P 7 %@ 1742-6588 %D 2022-01-01 %I IOP Publishing %~ DeepDyve