1. School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China
2. Key Laboratory of Quantitative Remote Sensing in Ministry of Agriculture and Rural Affairs, Information Technology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
3. Map of Ag, Woodbridge IP12 1BL, UK
4. School of Natural and Environmental Sciences, Newcastle University, Newcastle Upon Tyne NE1 7RU, UK
5. Demonstration Center of The Quality Agricultural Products, Tianjin 301508, China