Fig. 9: Denoiser preprocessing for single-slice ptychography.
From: Unsupervised deep denoising for four-dimensional scanning transmission electron microscopy
a Plot of the Frobenius norm comparing the ptychographic reconstruction (P) from noisy (crosses) and denoised (circles) data with that from noise-free data (P*), all simulated for MoS2, as a function of dose. The results for five different noise realizations are given by the symbols at each dose, with the solid line giving the guide-to-the-eye average. b The reconstructed potential from noise-free data, for comparison against that from (c) noisy and (d) denoised data for the dose and noise realisations indicated by the arrows in (a).
