Funding for this research was provided by:
Open Foundation of Hubei Key Laboratory of Construction and Management in Hydropower Engineering, China Three Gorges University (2019KSD09)
Open Foundation of National Field Observation and Research Station of Landslides in the Three Gorges Reservoir Area of Yangtze River, China Three Gorges University (2018KTL14)
Open Foundation of Hubei Key Laboratory of Intelligent Vision Based Monitoring for Hydroelectric Engineering, China Three Gorges University (2015KLA06)
Key Laboratory of Precise Engineering and Industry Surveying, National Administration of Surveying, Mapping and Geoinformation (PF2015-14)
Natural Science Foundation of Hubei Province (2016CFB443)
National Natural Science Foundation of China (41104009)
Article History
Received: 10 January 2020
Accepted: 16 April 2020
First Online: 29 April 2020
Competing interests
: The authors declare that they have no competing interests.