Figure 7
![Figure 7](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs10033-022-00768-3/MediaObjects/10033_2022_768_Fig7_HTML.png)
Original image and reconstructed images by experiments: (a) original B-scan image, (b) reconstructed image by conventional SAFT, (c) reconstructed image by Sparse-SAFT
Original image and reconstructed images by experiments: (a) original B-scan image, (b) reconstructed image by conventional SAFT, (c) reconstructed image by Sparse-SAFT