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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.
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