About the Authors

Bin Wang

wbcumt@163.com

Affiliation Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China

Wenzhong Shi

Affiliation Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China

Zelang Miao

Affiliation Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: BW. Performed the experiments: BW. Analyzed the data: BW WS ZM. Contributed reagents/materials/analysis tools: BW. Wrote the paper: BW.