sub_shepp.m

平行束CT重建算法

function ellip=sub_shepp()

%        ---------------------------------
%        x0    y0      z0       a     b            angle    mu
ellip = [0.0    0.0     0.0    .69    .92       0.0    2.0    
         0.0    -.0184  0.0    .6624  .874         0.0    -.98
         .22    0.0     0.0    .11    .31         -18.0   -.02
         -.22   0.0     0.0    .16    .41          18     -.02
         0.0    .35     0.0    .21    .25          0.0     .01
         0.0    .1      0.0    .046   .046        0.0     .01 
         0.0   -.1      0.0    .046   .046       0.0     .01
         -.08  -.605    0.0    .046    .023       0.0     .01
         .0    -.605    0.0    .023    .023        0.0     .01
         .06   -.605    0.0    .023    .046        0.0     .01];