Fig. 17

On-site images and point cloud slicing processes of three drum towers (Top to bottom: drum tower of Loujing in Xia Ge Township, drum tower of Jitang, drum tower of Baxi)

On-site images and point cloud slicing processes of three drum towers (Top to bottom: drum tower of Loujing in Xia Ge Township, drum tower of Jitang, drum tower of Baxi)