Defect Image Recognition and Classification for Eddy Current Testing of Titanium Plate Based on Convolutional Neural Network

Figure 11

Real-part imaging of C5 defect with different noise effects. (a) SNR = 95 dB. (b) SNR = 90 dB. (c) SNR = 80 dB. (d) SNR = 70 dB. (e) SNR = 60 dB. (f) SNR = 50 dB.

(a)

(b)

(c)

(d)

(e)

(f)