view article
Figure 4
The attenuation p(x) for the 150th row ([\theta_{150}] = 7.5°) of the sinogram: (a) corresponds to the row shown by the dashed line in Fig. 3(a)[link], the standard flat-field correction; (b) the proposed method is applied, then the mean filter (radius is 10 pixels) is applied to exclude fluctuations, the optimal regularization parameter [\alpha] = 0.00025, [\gamma] = 0.0, corresponds to Fig. 3(b)[link] (black solid line), [\alpha] = 10-9, [\gamma] = 0.2, corresponds to Fig. 3(e)[link] (grey solid line), [\alpha] = 10-9, [\gamma] = 0.0 (black dotted line).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 17| Part 4| May 2010| Pages 540-549
doi:10.1107/S0909049510010964
Follow J. Synchrotron Rad.
Sign up for e-alerts
E-alerts
Follow J. Synchrotron Rad. on Twitter
Twitter
Follow us on facebook
Facebook
Sign up for RSS feeds
RSS