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Table 6 Precision ( 28 ), in picometers, of the noisy and denoised images

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

Input Peak Dose [C/cm 2 ] Precision [pm] np-l16 np- π N16 np- π U16
Silicon 6 0.7853 n/a 28.06 12.18 14.34
Gallium nitride 7 1.5400 n/a n/a 11.03 10.63
Silicon 9 1.5706 n/a 21.38 9.63 9.22
Gallium nitride 12 3.8499 n/a 9.98 7.65 7.26
Silicon 21 7.8530 13.79 10.23 4.65 4.85
Silicon 34 15.7061 9.30 8.70 4.41 4.61
  1. Total standard deviation of the horizontal and vertical inter-atomic distances, with the value ‘n/a’ indicating that no neighboring atoms could be detected in the noisy (denoised) image. The best result in each row is in bold face.