1. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, China
2. College of Air Traffic Management, Civil Aviation Flight University of China, Guanghan, China
3. School of Geography and Information Engineering, China University of Geosciences, Wuhan, China
4. Department of Geography and Resource Management, The Chinese University of Hong Kong, Shatin, Hong Kong, China
5. Institute of Space and Earth Information Science, The Chinese University of Hong Kong, Shatin, Hong Kong, China
6. Guangdong Key Laboratory of Urban Informatics, Shenzhen University, Shenzhen, China
7. College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, China