Chia-Sheng Hsieh received M.S. and Ph.D. degrees in the Department of Civil Engineering, National Chiao Tung University, Hsinchu, Taiwan, in 1994 and 2006, respectively. He is currently an associate Professor at the Department of Civil Engineering, National Kaohsiung University of Science and Technology. His research interests include three-dimensional point cloud segmentation, UAV mapping, and InSAR technology.