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clc;
clear all;
close all;
n_voxels = 2000;
n_proj = 3600;
r = 1060/16;
d = 1060;
detector_size = 400;
pix_size = 400/2000;
cor_offset = 0;
detector_offset_u = 0;
detector_offset_v = 0;
detector_offset_z = 0;
s = [0 0 0];
u_detector_r = [1 0 0];
v_detector_r = [0 1 0];
n_detector_r = [0 0 1];
proj_vol = zeros(n_voxels,n_voxels,n_proj);
x_o = (n_voxels+1)/2;
y_o = (n_voxels+1)/2;
z_o = (n_voxels+1)/2;
x_grid = (1:1:n_voxels)-x_o;
y_grid = (n_voxels:-1:1)-y_o;
z_grid = (1:1:n_voxels)-z_o;
vox_size = pix_size/16;
x_grid = single(x_grid*vox_size);
y_grid = single(y_grid*vox_size);
z_grid = single(z_grid*vox_size);
[slice_x,slice_y] = meshgrid(x_grid,y_grid);
n_threads = 1;
vol = fdk_loop_suren(int32(n_voxels),...
int32(n_proj),...
single(r),...
single(d),...
single(detector_size),...
single(pix_size),...
single(cor_offset),...
single(detector_offset_u),...
single(detector_offset_v),...
single(detector_offset_z),...
single(s),...
single(u_detector_r),...
single(v_detector_r),...
single(n_detector_r),...
single(proj_vol),...
single(slice_x),...
single(slice_y),...
single(z_grid),...
int32(n_threads));
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