The core focus of this study is the dynamic monitoring of beach profiles,aiming to evaluate and compare the efficiency and accuracy of UAV tilt photography and 3D laser scanning technology in the field of beach geomorphology monitoring.Uav tilt pho-tography and 3D laser scanning technology are used for data collection.The results show that the horizontal deviation of the 3D laser scanner is between 0.015 m and 0.029 m,and the elevation deviation is between-0.207 m and 0.138 m.The UAV tilt photography technology shows a large systematic deviation in the elevation measurement although the horizontal direction is 0.012 m.The study highlights the effectiveness of drones and 3D laser scanning technology in beach terrain monitoring.
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