The Feasibility Assessment Study of Bridge Crack Width Recognition in Images Based on Special Inspection UAV

Table 5

Test results of beam bridge (tailwind, bottom).

Items	3 m	2.6 m	2.2 m	2.0 m	1.8 m	1.6 m
Level 0	0.971	0.971	0.97	0.972	0.97	0.969
Level 1	0.975	0.977	0.969	0.964	0.964	0.962
Level 2	0.977	0.979	0.974	0.965	0.952	0.914