Yang Chen Zicheng Fan Hao Li Wufan Zhao Xin Yang Guoan Tang Filip Biljecki a State Key Laboratory of Climate System Prediction and Risk Management, Nanjing Normal University, Nanjing, Chinab Department of Architecture, National University of Singapore, Singapore, Singaporec Ministry of Education, Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Nanjing, Chinad Department of Geography, National University of Singapore, Singapore, Singaporee Urban Governance and Design Thrust, Hong Kong University of Science and Technology (Guangzhou), Guangzhou, Chinaf Jiangsu Centre for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, Chinag Department of Real Estate, National University of Singapore, Singapore, SingaporeYang Chen is a PhD candidate at the School of Geography, Nanjing Normal University, China. His research focuses on 3D urban analysis and urban morphology.Zicheng Fan is a PhD candidate at the Urban Analytics Lab, National University of Singapore. His research interests include urban morphology, spatial perception, and machine learning.Hao Li is a Lecturer at the Department of Geography, National University of Singapore. His research interests include GIScience, GeoAI, spatial computing, and volunteered geographic information.Wufan Zhao is an Assistant Professor at the Urban Governance and Design Thrust, The Hong Kong University of Science and Technology (Guangzhou), where he leads the AI4DCity Lab. His research focuses on AI-based remote sensing image understanding, 3D city modelling, multi-modal spatiotemporal data fusion, and their methodological and applied studies.Xin Yang is a Professor at the School of Geography, Nanjing Normal University, China. Her research interests include digital terrain analysis, spatial analysis, and urban morphology.Guoan Tang is a Professor at the School of Geography, Nanjing Normal University, China. His research focuses on digital terrain analysis, and geographic information science.Filip Biljecki is an Assistant Professor at the National University of Singapore and the Principal Investigator of the NUS Urban Analytics Lab. He holds an MSc in Geomatics and a PhD in 3D GIS from the Delft University of Technology in the Netherlands.