Table 1.

Dam surface image collection equipment and environmental parameters.

Hardware/Environmental	Specifications/Parameters
UAV	DJI MAVIC 2
Sensor	1’’CMOS; Effective Pixels: 20 million
Camera Lens	35 mm Format Equivalent: 28 mm
Light Condition	5000 Lux–20000 Lux
Wind Speed	1 m/s–2 m/s
Total Collection Time	18 h
Collection Distance	3 m