2 * RECONSTRUCTION OF HEAD PHANTOM USING LINOGRAM AND FILTERED
3 * BACKPROJECTION METHODS. SINC FILTER FOR LINOGRAM AND COSINE
7 EXAMPLE 8 LINOGRAM RECONSTRUCTION
8 spectrum monochromatic 75
9 objects cx cy u v ang den
10 elip 0.000 0.000 8.625 6.4687 90.00 0.416
11 elip 0.000 0.000 7.875 5.7187 90.00 -0.206
12 elip 0.000 1.500 0.375 0.3000 90.00 -0.003
13 elip 0.675 -0.750 0.225 0.1500 140.00 0.010
14 elip 0.750 1.500 0.375 0.2250 50.00 0.003
15 segm 1.375 -7.500 1.100 0.6250 19.20 -0.204
16 segm 1.375 -7.500 1.100 4.3200 19.21 0.204
17 segm 0.000 -2.250 1.125 0.3750 0.00 -0.003
18 segm 0.000 -2.250 1.125 3.0000 0.00 0.003
19 segm -1.000 3.750 1.000 0.5000 135.00 -0.003
20 segm -1.000 3.750 1.000 3.0000 135.00 0.003
21 segm 1.000 3.750 1.000 0.5000 225.00 -0.003
22 segm 1.000 3.750 1.000 3.0000 225.00 0.003
23 tria 5.025 3.750 1.125 0.5000 110.75 0.206
24 tria -5.025 3.750 1.125 0.9000 -110.75 0.206
33 background absorption is 0.0
38 EXAMPLE 8a LINOGRAM METHOD
41 EXAMPLE 8b FILTERED BACKPROJECTION