**Author details**

Wenjiang Huang1 , Xianfeng Zhou<sup>2</sup> \*, Weiping Kong1 and Huichun Ye1

\*Address all correspondence to: zhouxianfeng@hdu.edu.cn

1 Key Laboratory of Digital Earth Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Science, Beijing, China

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2 College of Life Information Science and Instrument Engineering, Hangzhou Dianzi University, Hangzhou, China
