/perf/fdk

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  • Committer: Suren A. Chilingaryan
  • Date: 2017-02-08 19:08:48 UTC
  • Revision ID: csa@suren.me-20170208190848-lycd9dm701hyu608
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run_fdk.m
 
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clc;
 
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clear all;
 
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close all;
 
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n_voxels = 2000;
 
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n_proj = 3600;
 
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r = 1060/16;
 
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d = 1060;
 
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detector_size = 400;
 
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pix_size = 400/2000;
 
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cor_offset = 0;
 
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detector_offset_u = 0;
 
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detector_offset_v = 0;
 
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detector_offset_z = 0;
 
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s = [0 0 0];
 
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u_detector_r = [1 0 0];
 
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v_detector_r = [0 1 0];
 
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n_detector_r = [0 0 1];
 
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proj_vol = zeros(n_voxels,n_voxels,n_proj);
 
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x_o = (n_voxels+1)/2;
 
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y_o = (n_voxels+1)/2;
 
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z_o = (n_voxels+1)/2;
 
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x_grid = (1:1:n_voxels)-x_o;
 
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y_grid = (n_voxels:-1:1)-y_o;
 
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z_grid = (1:1:n_voxels)-z_o;
 
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vox_size = pix_size/16;
 
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x_grid = single(x_grid*vox_size);
 
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y_grid = single(y_grid*vox_size);
 
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z_grid = single(z_grid*vox_size);
 
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[slice_x,slice_y] = meshgrid(x_grid,y_grid);
 
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n_threads = 1;
 
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vol = fdk(int32(n_voxels),...
 
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    int32(n_proj),...
 
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    single(r),...
 
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    single(d),...
 
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    single(detector_size),...
 
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    single(pix_size),...
 
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    single(cor_offset),...
 
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    single(detector_offset_u),...
 
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    single(detector_offset_v),...
 
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    single(detector_offset_z),...
 
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    single(s),...
 
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    single(u_detector_r),...
 
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    single(v_detector_r),...
 
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    single(n_detector_r),...
 
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    single(proj_vol),...
 
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    single(slice_x),...
 
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    single(slice_y),...
 
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    single(z_grid),...
 
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    int32(n_threads));
 
 
b'\\ No newline at end of file'