Table 8.

Comparison of average results of crack detection by different scanners.

Scanner Type	Method	$\overline{\mathit{P}}\mathbf{(}\mathbf{\%}\mathbf{)}$	$\overline{\mathit{R}}\mathbf{(}\mathbf{\%}\mathbf{)}$	$\overline{\mathit{F}\mathbf{1}}\mathbf{(}\mathbf{\%}\mathbf{)}$
NO	2D only	62.7	86.4	69.1
Handheld laser	3D only	90.2	76.9	82.9
	2D and 3D	88.5	85.0	86.6
NO	2D only	80.5	82.8	79.5
Terrestrial laser	3D only	80.0	65.8	69.0
	2D and 3D	89.5	84.6	86.9