About the Authors

Jingbin Liu

jingbin.liu@fgi.fi

Affiliation Department of remote sensing and photogrammetry, Finnish Geodetic Institute, Masala, Finland

Ruizhi Chen

Affiliation Conrad Blucher Institute for surveying & science, Texas A & M University Corpus Christi, Corpus Christi, United States of America

Zemin Wang

Affiliation Chinese Antarctic center of surveying and mapping, Wuhan University, Wuhan, China

Jiachun An

Affiliation Chinese Antarctic center of surveying and mapping, Wuhan University, Wuhan, China

Juha Hyyppä

Affiliation Department of remote sensing and photogrammetry, Finnish Geodetic Institute, Masala, Finland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JL RC ZW. Performed the experiments: JL JA. Analyzed the data: JL RC ZW JA. Contributed reagents/materials/analysis tools: JL JH ZW. Wrote the paper: JL JH RC.