static void Main(string[] args)
{
try {
if (args.Length < 1)
{
Console.WriteLine("Usage: RTKFirstReconstruction <output>");
return;
}
// Defines the RTK geometry object
ThreeDCircularProjectionGeometry geometry = new ThreeDCircularProjectionGeometry();
uint numberOfProjections = 360;
float firstAngle = 0;
float angularArc = 360;
float sid = 600; // source to isocenter distance in mm
float sdd = 1200; // source to detector distance in mm
float isox = 0; // X coordinate on the projection image of isocenter
float isoy = 0; // Y coordinate on the projection image of isocenter
for (int x = 0; x < numberOfProjections; x++)
{
float angle = firstAngle + x * angularArc / numberOfProjections;
geometry.AddProjection(sid, sdd, angle, isox, isoy);
}
ConstantImageSource constantImageSource = new ConstantImageSource();
VectorDouble origin = new VectorDouble(3);
origin.Add(-127.0);
origin.Add(-127.0);
origin.Add(-127.0);
VectorUInt32 sizeOutput = new VectorUInt32(3);
sizeOutput.Add(256);
sizeOutput.Add(256);
sizeOutput.Add(numberOfProjections);
VectorDouble spacing = new VectorDouble(3);
spacing.Add(1.0);
spacing.Add(1.0);
spacing.Add(1.0);
constantImageSource.SetOrigin(origin);
constantImageSource.SetSpacing(spacing);
constantImageSource.SetSize(sizeOutput);
constantImageSource.SetConstant(0.0);
Image source = constantImageSource.Execute();
RayEllipsoidIntersectionImageFilter rei = new RayEllipsoidIntersectionImageFilter();
VectorDouble semiprincipalaxis = new VectorDouble(3);
semiprincipalaxis.Add(50.0);
semiprincipalaxis.Add(50.0);
semiprincipalaxis.Add(50.0);
VectorDouble center = new VectorDouble(3);
center.Add(0.0);
center.Add(0.0);
center.Add(0.0);
// Set GrayScale value, axes, center...
rei.SetDensity(20);
rei.SetAngle(0);
rei.SetCenter(center);
rei.SetAxis(semiprincipalaxis);
rei.SetGeometry(geometry);
Image reiImage = rei.Execute(source);
// Create reconstructed image
ConstantImageSource constantImageSource2 = new ConstantImageSource();
VectorUInt32 sizeOutput2 = new VectorUInt32(3);
sizeOutput2.Add(256);
sizeOutput2.Add(256);
sizeOutput2.Add(256);
constantImageSource2.SetOrigin(origin);
constantImageSource2.SetSpacing(spacing);
constantImageSource2.SetSize(sizeOutput2);
constantImageSource2.SetConstant(0.0);
Image source2 = constantImageSource2.Execute();
Console.WriteLine("Performing reconstruction");
FDKConeBeamReconstructionFilter feldkamp = new FDKConeBeamReconstructionFilter();
feldkamp.SetGeometry(geometry);
feldkamp.SetTruncationCorrection(0.0);
feldkamp.SetHannCutFrequency(0.0);
Image image = feldkamp.Execute(source2, reiImage);
ImageFileWriter writer = new ImageFileWriter();
writer.SetFileName(args[0]);
writer.Execute(image);
} catch (Exception ex) {
Console.WriteLine(ex);
}
}
static void Main(string[] args)
{
try {
if (args.Length < 1) {
Console.WriteLine("Usage: RTKFirstReconstruction <output>");
return;
}
// Defines the RTK geometry object
ThreeDCircularProjectionGeometry geometry = new ThreeDCircularProjectionGeometry();
uint numberOfProjections = 360;
float firstAngle = 0;
float angularArc = 360;
float sid = 600; // source to isocenter distance in mm
float sdd = 1200; // source to detector distance in mm
float isox = 0; // X coordinate on the projection image of isocenter
float isoy = 0; // Y coordinate on the projection image of isocenter
for (int x = 0; x < numberOfProjections; x++)
{
float angle = firstAngle + x * angularArc / numberOfProjections;
geometry.AddProjection(sid, sdd, angle, isox, isoy);
}
ConstantImageSource constantImageSource = new ConstantImageSource();
VectorDouble origin = new VectorDouble(3);
origin.Add(-127.0);
origin.Add(-127.0);
origin.Add(-127.0);
VectorUInt32 sizeOutput = new VectorUInt32(3);
sizeOutput.Add(256);
sizeOutput.Add(256);
sizeOutput.Add(numberOfProjections);
VectorDouble spacing = new VectorDouble(3);
spacing.Add(1.0);
spacing.Add(1.0);
spacing.Add(1.0);
constantImageSource.SetOrigin(origin);
constantImageSource.SetSpacing(spacing);
constantImageSource.SetSize(sizeOutput);
constantImageSource.SetConstant(0.0);
Image source = constantImageSource.Execute();
RayEllipsoidIntersectionImageFilter rei = new RayEllipsoidIntersectionImageFilter();
VectorDouble semiprincipalaxis = new VectorDouble(3);
semiprincipalaxis.Add(50.0);
semiprincipalaxis.Add(50.0);
semiprincipalaxis.Add(50.0);
VectorDouble center = new VectorDouble(3);
center.Add(0.0);
center.Add(0.0);
center.Add(0.0);
// Set GrayScale value, axes, center...
rei.SetDensity(20);
rei.SetAngle(0);
rei.SetCenter(center);
rei.SetAxis(semiprincipalaxis);
rei.SetGeometry(geometry);
Image reiImage = rei.Execute(source);
// Create reconstructed image
ConstantImageSource constantImageSource2 = new ConstantImageSource();
VectorUInt32 sizeOutput2 = new VectorUInt32(3);
sizeOutput2.Add(256);
sizeOutput2.Add(256);
sizeOutput2.Add(256);
constantImageSource2.SetOrigin(origin);
constantImageSource2.SetSpacing(spacing);
constantImageSource2.SetSize(sizeOutput2);
constantImageSource2.SetConstant(0.0);
Image source2 = constantImageSource2.Execute();
Console.WriteLine("Performing reconstruction");
FDKConeBeamReconstructionFilter feldkamp = new FDKConeBeamReconstructionFilter();
feldkamp.SetGeometry(geometry);
feldkamp.SetTruncationCorrection(0.0);
feldkamp.SetHannCutFrequency(0.0);
Image image = feldkamp.Execute(source2, reiImage);
ImageFileWriter writer = new ImageFileWriter();
writer.SetFileName(args[0]);
writer.Execute(image);
} catch (Exception ex) {
Console.WriteLine(ex);
}
}