Using SSNR, the authors find that CTF overestimates low-dose STEM phase retrieval performance and that iterative ptychography's SSNR is dose-dependent, matching direct ptychography at low fluence.
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Beyond Contrast Transfer: Spectral SNR as a Dose-Aware Metric for STEM Phase Retrieval
Using SSNR, the authors find that CTF overestimates low-dose STEM phase retrieval performance and that iterative ptychography's SSNR is dose-dependent, matching direct ptychography at low fluence.