Table 4 CNN Model test results.

From: Defects detection of GMAW process based on convolutional neural network algorithm

Test set

Classification

Number of pictures (sheet)

Accuracy

Test speed (s/sheet)

Penetration

Full penetration

362

0.995945

0.060629

Sag depression

224

0.989011

Burn through

133

0.993358

Pores

With pores

305

0.971365

0.060836

No pore

295

0.980151

Arc light

Strong arc interference

1121

0.996725

0.060782

Weak arc interference

560

0.971772

Slags

With slags

595

0.985129

0.060645

Little slag

300

0.970987