A Bayesian Network Method for Quantitative Evaluation of Defects in Multilayered Structures from Eddy Current NDT Signals

Table 2

Defect parameter estimation errors obtained by the BN method and the LS method (specimen number 2).

	Signals	LS	BN
Diameter error (RMSE)	Noise-free	0.6596	0.2813
	10% noise	0.6918	0.3709
	20% noise	0.7271	0.4464
Depth error (RMSE)	Noise-free	0.7050	0.3213
	10% noise	0.7942	0.4140
	20% noise	0.8893	0.4944