@article{202305.1429, doi = {10.20944/preprints202305.1429.v1}, url = {https://doi.org/10.20944/preprints202305.1429.v1}, year = 2023, month = {May}, publisher = {Preprints}, author = {Baterdene Bibish and Hisatoshi Toriya and Yewuhalashet Fissha and Hajime Ikeda and Narihiro Owada and Brian Bino Sinaice and Tsuyoshi Adachi and Youhei Kawamura}, title = {UAV Based 3D Photogrammetric Modelling in Underground Inaccessible Tunnel}, journal = {Preprints} }