Fig. 3: Reconstruction error plots varying probe spacing and convergence semiangle.
From: Unsupervised deep denoising for four-dimensional scanning transmission electron microscopy
Reconstruction errors for denoising simulated 4D STEM datasets from SrTiO3 and Y2Ti2O7 as a function of (a) probe spacing (assuming a 21.4 mrad convergence semiangle) and (b) convergence semiangle (assuming a 0.75 Å probe spacing). In (a) results are shown both for probes focused at the surface, and for probes with a probe-spacing-dependent defocus (labelled “df”) equal to ps/α (where ps is the probe spacing and α is the convergence semiangle). The added noise level in (a, b) differ.
