Using Unmanned Aerial Vehicle to Obtain Gray Level Digital Images and Estimating In-Situ Soil Water Content.


Ching-Hsiung Wang1, Hong-Ru Lin2, Jyun-Lin Chen3, Shao-Yang Huang3 and Jet-Chau Wen4,5, (1)Douliou, Taiwan, (2)NYUSUT National Yunlin University of Science and Technology, Graduate School of Engineering Science and Technology, Yulin, Taiwan, (3)National Yunlin University of Science and Technology, Research Center for Soil and Water Resources and Natural Disaster Prevention (SWAN), Douliou, Taiwan, (4)NYUSUT National Yunlin University of Science and Technology, Yulin, Taiwan, (5)National Yunlin University of Science and Technology, Department and Graduate School of Safety Health and Environmental Engineering, Douliou, Taiwan