1. College of Geoexploration Science and Technology, Jilin University, Changchun 130026, China
2. CESBIO, CNES-CNRS-IRD-UPS, University of Toulouse, CEDEX 09, 31401 Toulouse, France
3. Jilin Institute of GF Remote Sensing Application, Changchun 130012, China
4. Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Hong Kong, China