Defect detection Defects 10 Deep learning 4 Convolutional neural networks 3 Additives 2 Algorithm unfolding 2 Clutter (information theory) 2 Clutter suppression 2 Compressed sensing 2 Compressive sensing 2 Convolution 2 Detection accuracy 2 Detection of materials 2 Echo suppression 2 Extraction 2 Feature extraction 2 Iterative methods 2 Layered Structures 2 MIMO systems 2 Material defect 2 Mean square error 2 Non destructive testing 2 Radar clutter 2 Reweighted norm 2 Semantics 2 Speed of convergence 2 Target images 2 Unfoldings 2 algorithm unfolding 2 clutter suppression 2