view article
Figure 4
Example diffraction patterns calculated for a single exposure of the phantom cell of Fig. 3[link](a), with Poisson noise corresponding to an integrated fluence nph (photons per pixel) from the set of all probe positions that illuminate a single pixel of the phantom. The same intensity scale in photons per pixel in the diffraction pattern is used in all cases. The single diffraction patterns (a)–(e) are for the probe centered on the position of the yellow box in Fig. 3[link](a), while diffraction pattern (f) is for the probe centered outside the phantom `cell' at the position of the red box in Fig. 3[link](a). This figure shows how little signal is recorded at high spatial frequencies (large radii from the diffraction pattern center) from phantom cell features, so that the preservation of low level signals in our lossy encoding schemes is especially important.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 28| Part 1| January 2021| Pages 292-300
https://doi.org/10.1107/S1600577520013326
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