TY - JOUR A1 - Zhu, N. A1 - Jiaa, Y. A1 - Luo, L. T1 - TUNNEL POINT CLOUD FILTERING METHOD BASED ON ELLIPTIC CYLINDRICAL MODEL JO - Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Archives VL - XLI-B1 SP - 735 EP - 740 Y1 - 2016/06/06 PB - Copernicus Publications SN - 2194-9034 UR - https://isprs-archives.copernicus.org/articles/XLI-B1/735/2016/ L1 - https://isprs-archives.copernicus.org/articles/XLI-B1/735/2016/isprs-archives-XLI-B1-735-2016.pdf DO - 10.5194/isprs-archives-XLI-B1-735-2016 ER -