Figure 5From: Resolution Enhancement in Ultrasonic TOFD Imaging by Combining Sparse Deconvolution and Synthetic Aperture Focusing Technique (Sparse-SAFT)A-scan signals corresponding to the three cracks in different images: (a) in the original image, (b) in the reconstructed image by conventional SAFT, (c) in the reconstructed image by Sparse-SAFTBack to article page