view article

Figure 4
Reconstructed images of the Shepp–Logan phantom using the FBP (a) and (i), SART (b) and (j), SART-FAB4 (c) and (k), and SART-FAB8 (d) and (l) algorithms from noise-free and noisy 60-view projections. Panels (e)–(h) and (m)–(p) are magnified images of the green rectangle regions in panels (a)–(d) and (i)–(l), respectively. The red arrow denotes streak artefacts, the blue arrow denotes oscillating artefacts and the green arrow denotes low-dose noise. The pixel values of the above grey-scale images were normalized to the range [0, 255]. The display window is [0, 180].

Journal logoJOURNAL OF
ISSN: 1600-5775
Follow J. Synchrotron Rad.
Sign up for e-alerts
Follow J. Synchrotron Rad. on Twitter
Follow us on facebook
Sign up for RSS feeds