1. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, and Institute of Artificial Intelligence, Wuhan University, Wuhan, China
2. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, China
3. National Engineering Research Center for Multimedia Software, Institute of Artificial Intelligence, School of Computer Science and Hubei Key Laboratory of Multimedia and Network Communication Engineering, Wuhan University, Wuhan, China
4. Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan