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Table 1 Slope and intercepts used in determining h for various subspace dimensionality of 7 × 7 neighborhoods

From: Rician nonlocal means denoising for MR images using nonparametric principal component analysis

 

d = 6

d = 10

d= 20

d= 49

Slope (β)

2.2

2.37

3.275

4.55

Intercept ( α)

4

21.75

26.375

40.125