He, Chengyan
Lu, Xiaochun
Guo, Ji
Su, Chengeng
Wang, Wei
Wang, Meng
Funding for this research was provided by:
National Natural Science Foundation of China (61501430, 41604029)
State Key Laboratory of Geo-Information Engineering (SKLGIE2017-M-2-2)
Article History
Received: 18 June 2019
Accepted: 30 September 2019
First Online: 20 January 2020
Competing interests
: The authors declare that they have no competing interests.