Fig. 6.
Illustration of the effect of choosing different iterate averaging frequencies. For both the AMP-assembled experimental data at left, and the simulated data set at right, the difference map algorithm was first run for 5,000 iterations. Next, 100 iterates were taken every ith iteration (i ∈ {1,5,10,20,30,40,60,70,80,90,100,200}) to obtain a final result. Wiener-filtered phase retrieval transfer function (wPRTF) curves are plotted for each of the iterate averaging frequencies. An example reconstructed image is shown as an inset. As judged by the wPRTF, all iterate sampling frequencies give essentially the same result.