Peichao Gao received a B.S. from the Department of Surveying Engineering, Chengdu University of Technology, China, in 2012; an M.S. from the Department of Civil Engineering, Tsinghua University, China, in 2015; and a Ph.D. from the Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Hong Kong, in 2018. He is currently an assistant professor at the Faculty of Geographical Science, Beijing Normal University.