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Table 8 Performance of median and Wiener filters

From: Poisson noise removal from high-resolution STEM images based on periodic block matching

  Input Peak Dose [C/cm 2 ] ρ + ρ Precision [pm] Fidelity [pm]
Median Silicon 6 0.7853 0.96 0.81 38.73 2.86
  Gallium nitride 7 1.5400 1 0 19.01 1.36
  Silicon 9 1.5706 0.83 0.06 29.81 2.46
  Gallium nitride 12 3.8499 1 0 12.07 0.74
Wiener Silicon 6 0.7853 0.04 0.5 n/a 9.44
  Gallium nitride 7 1.5400 0.19 0.06 n/a 14.69
  Silicon 9 1.5706 0.02 0.67 n/a 12.81
  Gallium nitride 12 3.8499 0 n/a n/a n/a
  1. Detection fraction (26), misdetection fraction (27), precision (28), and fidelity (29) (both in picometers) of denoised images after application of a median filter (top rows) and a low-pass Wiener filter (bottom rows).