BSplineDeformableTransformInitializer is a helper class intended to initialize the grid parameters of a BSplineDeformableTransform based on the parameters of an image. More...
#include <itkBSplineDeformableTransformInitializer.h>
Public Types | |
| typedef BSplineDeformableTransformInitializer | Self |
| typedef Object | Superclass |
| typedef SmartPointer< Self > | Pointer |
| typedef SmartPointer< const Self > | ConstPointer |
| typedef TTransform | TransformType |
| typedef TransformType::Pointer | TransformPointer |
| typedef TransformType::RegionType | TransformRegionType |
| typedef TransformRegionType::SizeType | TransformSizeType |
| typedef TImage | ImageType |
| typedef ImageType::ConstPointer | ImagePointer |
Public Member Functions | |
| virtual const char * | GetClassName () const |
| itkStaticConstMacro (SpaceDimension, unsigned int, TransformType::InputSpaceDimension) | |
| virtual void | SetTransform (TransformType *_arg) |
| virtual void | SetImage (const ImageType *_arg) |
| virtual void | SetGridSizeInsideTheImage (TransformSizeType _arg) |
| void | SetNumberOfGridNodesInsideTheImage (unsigned int numberOfNodes) |
| virtual void | InitializeTransform () const |
Static Public Member Functions | |
| static Pointer | New () |
Protected Member Functions | |
| BSplineDeformableTransformInitializer () | |
| ~BSplineDeformableTransformInitializer () | |
| void | PrintSelf (std::ostream &os, Indent indent) const |
BSplineDeformableTransformInitializer is a helper class intended to initialize the grid parameters of a BSplineDeformableTransform based on the parameters of an image.
In the context of image registration, the image to be used are reference will be the fixed image. The BSpline grid will use the fixed image as a base for computing the grid spacing, orientation and origin, among other things.
Definition at line 42 of file itkBSplineDeformableTransformInitializer.h.
| typedef SmartPointer<const Self> itk::BSplineDeformableTransformInitializer< TTransform, TImage >::ConstPointer |
Definition at line 49 of file itkBSplineDeformableTransformInitializer.h.
| typedef ImageType::ConstPointer itk::BSplineDeformableTransformInitializer< TTransform, TImage >::ImagePointer |
Definition at line 72 of file itkBSplineDeformableTransformInitializer.h.
| typedef TImage itk::BSplineDeformableTransformInitializer< TTransform, TImage >::ImageType |
Image Types to use in the initialization of the transform
Definition at line 71 of file itkBSplineDeformableTransformInitializer.h.
| typedef SmartPointer<Self> itk::BSplineDeformableTransformInitializer< TTransform, TImage >::Pointer |
Definition at line 48 of file itkBSplineDeformableTransformInitializer.h.
| typedef BSplineDeformableTransformInitializer itk::BSplineDeformableTransformInitializer< TTransform, TImage >::Self |
Standard class typedefs.
Definition at line 46 of file itkBSplineDeformableTransformInitializer.h.
| typedef Object itk::BSplineDeformableTransformInitializer< TTransform, TImage >::Superclass |
Definition at line 47 of file itkBSplineDeformableTransformInitializer.h.
| typedef TransformType::Pointer itk::BSplineDeformableTransformInitializer< TTransform, TImage >::TransformPointer |
Types defined from transform traits
Definition at line 61 of file itkBSplineDeformableTransformInitializer.h.
| typedef TransformType::RegionType itk::BSplineDeformableTransformInitializer< TTransform, TImage >::TransformRegionType |
Definition at line 62 of file itkBSplineDeformableTransformInitializer.h.
| typedef TransformRegionType::SizeType itk::BSplineDeformableTransformInitializer< TTransform, TImage >::TransformSizeType |
Definition at line 63 of file itkBSplineDeformableTransformInitializer.h.
| typedef TTransform itk::BSplineDeformableTransformInitializer< TTransform, TImage >::TransformType |
Type of the transform to initialize
Definition at line 55 of file itkBSplineDeformableTransformInitializer.h.
| itk::BSplineDeformableTransformInitializer< TTransform, TImage >::BSplineDeformableTransformInitializer | ( | ) | [protected] |
Definition at line 29 of file itkBSplineDeformableTransformInitializer.txx.
{
this->m_GridSizeInsideTheImage.Fill( 5 );
}
| itk::BSplineDeformableTransformInitializer< TTransform, TImage >::~BSplineDeformableTransformInitializer | ( | ) | [inline, protected] |
Definition at line 103 of file itkBSplineDeformableTransformInitializer.h.
{};
| virtual const char* itk::BSplineDeformableTransformInitializer< TTransform, TImage >::GetClassName | ( | ) | const [virtual] |
Run-time type information (and related methods).
| void itk::BSplineDeformableTransformInitializer< TTransform, TImage >::InitializeTransform | ( | ) | const [virtual] |
Initialize the transform using data from the images
Definition at line 38 of file itkBSplineDeformableTransformInitializer.txx.
{
// Sanity check
if( ! this->m_Image )
{
itkExceptionMacro( "Reference Image has not been set" );
return;
}
if( ! this->m_Transform )
{
itkExceptionMacro( "Transform has not been set" );
return;
}
// If the image come from a filter, then update that filter.
if( this->m_Image->GetSource() )
{
this->m_Image->GetSource()->Update();
}
typedef typename TransformType::RegionType RegionType;
typename RegionType::SizeType numberOfGridNodesOutsideTheImageSupport;
typename RegionType::SizeType totalGridSize;
numberOfGridNodesOutsideTheImageSupport.Fill( TransformType::SplineOrder );
totalGridSize = this->m_GridSizeInsideTheImage;
totalGridSize += numberOfGridNodesOutsideTheImageSupport;
RegionType gridRegion;
gridRegion.SetSize( totalGridSize );
typedef typename TransformType::SpacingType SpacingType;
const SpacingType & imageSpacing = this->m_Image->GetSpacing();
typedef typename TransformType::OriginType OriginType;
const OriginType & imageOrigin = this->m_Image->GetOrigin();;
const typename TransformType::RegionType & imageRegion =
this->m_Image->GetLargestPossibleRegion();
typename ImageType::SizeType fixedImageSize = imageRegion.GetSize();
SpacingType gridSpacing;
SpacingType gridOriginShift;
const unsigned int orderShift = TransformType::SplineOrder / 2;
for( unsigned int r = 0; r < SpaceDimension; r++ )
{
const unsigned int numberOfGridCells = this->m_GridSizeInsideTheImage[r] - 1;
const unsigned int numberOfImagePixels = fixedImageSize[r];
gridSpacing[r] = imageSpacing[r] *
static_cast<double>(numberOfImagePixels) /
static_cast<double>(numberOfGridCells);
// Shift half image pixel to cover the image support
const double imageSupportShift = - imageSpacing[r] / 2.0;
// Shift by the number of extra grid cells required by
// the BSpline order.
const double gridSupportShift = -1.0 * gridSpacing[r] * orderShift;
// Combine both shifts. They are both aligned with the coordinate
// system of the grid. Direction has not been considered so far.
gridOriginShift[r] = gridSupportShift + imageSupportShift;
}
typename ImageType::DirectionType gridDirection = this->m_Image->GetDirection();
SpacingType gridOriginOffset = gridDirection * gridOriginShift;
OriginType gridOrigin = imageOrigin + gridOriginOffset;
this->m_Transform->SetGridRegion( gridRegion );
this->m_Transform->SetGridOrigin( gridOrigin );
this->m_Transform->SetGridSpacing( gridSpacing );
this->m_Transform->SetGridDirection( gridDirection );
}
| itk::BSplineDeformableTransformInitializer< TTransform, TImage >::itkStaticConstMacro | ( | SpaceDimension | , |
| unsigned | int, | ||
| TransformType::InputSpaceDimension | |||
| ) |
Dimension of parameters.
| static Pointer itk::BSplineDeformableTransformInitializer< TTransform, TImage >::New | ( | ) | [static] |
New macro for creation of through a Smart Pointer.
| void itk::BSplineDeformableTransformInitializer< TTransform, TImage >::PrintSelf | ( | std::ostream & | os, |
| Indent | indent | ||
| ) | const [protected] |
Definition at line 124 of file itkBSplineDeformableTransformInitializer.txx.
{
Superclass::PrintSelf(os,indent);
os << indent << "Transform = " << std::endl;
if( this->m_Transform )
{
os << indent << this->m_Transform << std::endl;
}
else
{
os << indent << "None" << std::endl;
}
os << indent << "Image = " << std::endl;
if( this->m_Image )
{
os << indent << this->m_Image << std::endl;
}
else
{
os << indent << "None" << std::endl;
}
}
| virtual void itk::BSplineDeformableTransformInitializer< TTransform, TImage >::SetGridSizeInsideTheImage | ( | TransformSizeType | _arg ) | [virtual] |
Set the number of grid nodes that we want to place inside the image. This method will override the settings of any previous call to SetNumberOfGridNodesInsideTheImage().
| virtual void itk::BSplineDeformableTransformInitializer< TTransform, TImage >::SetImage | ( | const ImageType * | _arg ) | [virtual] |
Set the fixed image used in the registration process
| void itk::BSplineDeformableTransformInitializer< TTransform, TImage >::SetNumberOfGridNodesInsideTheImage | ( | unsigned int | numberOfNodes ) | [inline] |
Set the number of grid nodes that we want to place inside the image. This number of node is used along one dimension of the image. Therefore, if you pass the number 5 as argument of this method, in a 3D space, then the total number of grid nodes inside the image will be $ 5 x 5 x 5 $ . This method will override the settings of any previous call to SetGridSizeInsideTheImage().
Definition at line 92 of file itkBSplineDeformableTransformInitializer.h.
{
this->m_GridSizeInsideTheImage.Fill( numberOfNodes );
this->Modified();
}
| virtual void itk::BSplineDeformableTransformInitializer< TTransform, TImage >::SetTransform | ( | TransformType * | _arg ) | [virtual] |
Set the transform to be initialized
1.7.2