Table 5.

Average values of six-classifying model evaluation indices.

Category	Model	No Defect	Hole			Crack	Foreign Matter
			5 mm	7 mm	9 mm
Precision	CNN	99.67%	99.82%	95.26%	94.78%	98.99%	99.02%
	SCN	97.89%	96.84%	94.45%	93.51%	97.97%	98.07%
Recall	CNN	99.80%	89.33%	100%	99.50%	98.64%	99.50%
	SCN	99.35%	90.38%	98.68%	98.52%	95.78%	96.40%
F-score	CNN	0.9973	0.9425	0.9757	0.9708	0.9881	0.9926
	SCN	0.9860	0.9344	0.9649	0.9594	0.9685	0.9722