1. School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, China
2. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, China
3. Collaborative Innovation Center of Geospatial Technology, Wuhan, China
4. Shenzhen Key Laboratory of Spatial Smart Sensing and Services, Shenzhen University, Shenzhen, China
5. Department of Geography, University of Tennessee, Knoxville, TN, USA
6. Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong