Figure 3.

Example reconstructions for 200 photons per pixel. (a) The phases (radians) of the reconstruction of the cells after 200 iterations of RAAR (β₀ = 0.99, β_max = 0.75 and β_s = 150 iterations) using a support and pure phase object constraint. The left half shows the reconstruction obtained from the near-field data, the right-hand side the results for the far-field data. (b) Fourier ring correlation of the reconstructions with the phantom in Fig. 2 ▸(a). (c), (d) Analogous to panels (a) and (b) for the bitmap object shown in Fig. 2 ▸(c). The scale bar indicates 50 pixels.