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Table 5 The coefficients of Fourier series expansion of F ( k ) ( N = 256, θ k = k o , k = 0,⋯,179)

From: A novel scheme to design the filter for CT reconstruction using FBP algorithm

a 0

0.209555620787293

  

a 1

0.693546995671764

b 1

-0.201010002024803

a 2

0.099842536865856

b 2

-0.101104690137033

a 3

-0.152784751604807

b 3

-0.180901677852717

a 4

0.248221333497748

b 4

-0.353671098582667

a 5

0.308013835831055

b 5

-0.032248278459190

a 6

0.377740474429379

b 6

0.104300291184828

a 7

0.075385012026711

b 7

0.465974969229510

a 8

-0.294404584616438

b 8

0.114991610901604

a 9

-0.056064644119820

b 9

-0.088997280339292