Deep learning deep learning 4 E-learning 3 Automation 2 Performance 2 article 2 human 2 Audio acoustics 1 Audio processing 1 Audio recordings 1 Automated defect recognition 1 Backpropagation 1 Channel wavelength 1 Coherent communication 1 Contrast-to-noise ratio 1 Defect recognition 1 Defects 1 Detection technology 1 Digital X-ray radiography 1 Digital backpropagation 1 Digital picture 1 Digital signal processing 1 Digital voice communications 1 Exposed to 1 Extraction 1 GRD 1 Image quality 1 Image quality parameters 1 Image splicing 1 Image splicing localization 1