A Color Calibration Method in Estimating the Soil Moisture by the Image of Unmanned Aerial Vehicle
Hong-Yi Li1, Hong-Ru Lin2, Jyun-Lin Chen2, Shao-Yang Huang3 and Jet-Chau Wen4, (1)National Yunlin University of Science and Technology, Graduate School of Safety Health and Environmental Engineering, Douliou, Taiwan, (2)National Yunlin University of Science and Technology, Graduate School of Engineering Science and Technology, Douliou, Taiwan, (3)National Yunlin University of Science and Technology, Research Center for Soil and Water Resources and Natural Disaster Prevention (SWAN), Douliou, Taiwan, (4)National Yunlin University of Science and Technology, Department and Graduate School of Safety Health and Environmental Engineering, Douliou, Taiwan