Table 10.

Quantitative results of different types of crack testing based on poisson fusion degree.

Reference crack depth (mm)	0.3	0.5	0.7	0.9	1.1	1.3
Maximum poisson fusion degree	0.032	0.032	0.036	0.0 37	0.038	0.040
Quantitative depth (mm)	0.33	0.54	0.67	0.88	1.15	1.32
Quantitative error (%)	0.143	0.074	−0.045	−0.023	0.043	0.015
Mean absolute error	0.027
Mean squared error	0.030