1. Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, China
2. Key Laboratory of Urban Land Resources Monitoring and Simulation, Ministry of Natural Resources, Shenzhen, China
3. School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, China
4. Biological Systems Engineering, University of Wisconsin–Madison, Madison, WI, USA
5. Department of Electrical and Computer Engineering, University of California, Los Angeles, CA, USA