Table 2 The coefficients of Fourier series expansion of F ( k )( N = 256, θ k = 0 o, 3 o ,⋯,177 o )
From: A novel scheme to design the filter for CT reconstruction using FBP algorithm
a 0 | 0.122730836679312 | ||
a 1 | 0.916483009109464 | b 1 | -0.497982711366623 |
a 2 | 0.462544582824757 | b 2 | -0.120545376607102 |
a 3 | 0.128736533815128 | b 3 | 0.040355538652453 |
a 4 | 0.167851665809050 | b 4 | -0.182518259771096 |
a 5 | 0.315690517777738 | b 5 | -0.094362761222605 |
a 6 | 0.480769918991562 | b 6 | 0.285895915083407 |
a 7 | -0.189184291984498 | b 7 | 0.563061220832784 |
a 8 | -0.335163337055193 | b 8 | -0.086997019632140 |
a 9 | 0.023005162904716 | b 9 | -0.087383132662148 |