Smoothed Norm Regularization for Sparse-View X-Ray CT Reconstruction

Figure 7

Results of reconstruction using different parameters. (a)–(e) are the reconstructions with singular value during the whole iterative process. (f) is the reconstructed image with the decreased value. The red circles denote a small area of interest and corresponding zoomed images of ROI are placed at the top right. The initial equals 0.7 and equals 0.9. And the display window is .

(a)

(b)

(c)

(d)

(e)

(f)