1. School of Recourses and Environment University of Electronic Science and Technology of China (UESTC) Chengdu P.R. China
2. Texas A&M Engineering Experiment Station (TEES) Texas A&M University College Station Texas USA
3. Aerospace Information Research Institute (AIR) Chinese Academy of Sciences (CAS) Beijing P.R. China
4. School of Remote Sensing and Information Engineering Wuhan University Wuhan P.R. China