1. Professor, College of Surveying and Geo-Informatics, Shandong Jianzhu Univ., Jinan 250101, People’s Republic of China; Associate Professor, Faculty of Geomatics, East China Univ. of Technology, Nanchang 330013, People’s Republic of China. ORCID: .
2. Master’s Candidate, Faculty of Geomatics, East China Univ. of Technology, Nanchang 330013, People’s Republic of China.
3. Master’s Candidate, Faculty of Geomatics, East China Univ. of Technology, Nanchang 330013, People’s Republic of China (corresponding author).