itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField > Class Template Reference
[Deformable Registration Methods]

Deformably register two images using a PDE algorithm. More...

#include <itkPDEDeformableRegistrationFilter.h>

Inheritance diagram for itk::PDEDeformableRegistrationFilter:

[legend]Collaboration diagram for itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >:

[legend]List of all members.

Public Types
typedef PDEDeformableRegistrationFilter	Self
typedef DenseFiniteDifferenceImageFilter< TDeformationField, TDeformationField >	Superclass
typedef SmartPointer< Self >	Pointer
typedef SmartPointer< const Self >	ConstPointer
typedef TFixedImage	FixedImageType
typedef FixedImageType::Pointer	FixedImagePointer
typedef FixedImageType::ConstPointer	FixedImageConstPointer
typedef TMovingImage	MovingImageType
typedef MovingImageType::Pointer	MovingImagePointer
typedef MovingImageType::ConstPointer	MovingImageConstPointer
typedef TDeformationField	DeformationFieldType
typedef DeformationFieldType::Pointer	DeformationFieldPointer
typedef Superclass::OutputImageType	OutputImageType
typedef Superclass::FiniteDifferenceFunctionType	FiniteDifferenceFunctionType
typedef PDEDeformableRegistrationFunction< FixedImageType, MovingImageType, DeformationFieldType >	PDEDeformableRegistrationFunctionType
Public Methods
virtual const char *	GetClassName () const
	itkStaticConstMacro (ImageDimension, unsigned int, Superclass::ImageDimension)
void	SetFixedImage (const FixedImageType *ptr)
const FixedImageType *	GetFixedImage (void)
void	SetMovingImage (const MovingImageType *ptr)
const MovingImageType *	GetMovingImage (void)
void	SetInitialDeformationField (DeformationFieldType *ptr)
DeformationFieldType *	GetDeformationField ()
virtual void	SetNumberOfIterations (unsigned int _arg)
virtual unsigned int	GetNumberOfIterations ()
const double *	GetStandardDeviations (void)
virtual void	SetStandardDeviations (double data[])
virtual void	SetStandardDeviations (double value)
Static Public Methods
Pointer	New ()
Protected Methods
	PDEDeformableRegistrationFilter ()
	~PDEDeformableRegistrationFilter ()
void	PrintSelf (std::ostream &os, Indent indent) const
virtual void	CopyInputToOutput ()
virtual void	InitializeIteration ()
virtual void	SmoothDeformationField ()
virtual void	CopyDeformationField (DeformationFieldType *input, DeformationFieldType *output)
virtual void	GenerateOutputInformation ()
virtual void	GenerateInputRequestedRegion ()
virtual bool	Halt ()

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Detailed Description

template<class TFixedImage, class TMovingImage, class TDeformationField>
class itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >

Deformably register two images using a PDE algorithm.

PDEDeformableRegistrationFilter is a base case for filter implementing a PDE deformable algorithm that register two images by computing the deformation field which will map a moving image onto a fixed image.

A deformation field is represented as a image whose pixel type is some vector type with at least N elements, where N is the dimension of the fixed image. The vector type must support element access via operator []. It is assumed that the vector elements behave like floating point scalars.

This class is templated over the fixed image type, moving image type and the deformation Field type.

The input fixed and moving images are set via methods SetFixedImage and SetMovingImage respectively. An initial deformation field maybe set via SetInitialDeformationField or SetInput. If no initial field is set, a zero field is used as the initial condition.

The output deformation field can be obtained via methods GetOutput or GetDeformationField.

The PDE algorithm is run for a user defined number of iterations. Typically the PDE algorithm requires period Gaussin smoothing of the deformation field to enforce an elastic-like condition. The amount of smoothing is governed by a set of user defined standard deviations (one for each dimension).

This class make use of the finite difference solver hierarchy. Update for each iteration is computed using a PDEDeformableRegistrationFunction.

Warning:

This filter assumes that the fixed image type, moving image type and deformation field type all have the same number of dimensions.

See also:

PDEDeformableRegistrationFunction.

Definition at line 66 of file itkPDEDeformableRegistrationFilter.h.

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Member Typedef Documentation

template<class TFixedImage, class TMovingImage, class TDeformationField> typedef SmartPointer<const Self> itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::ConstPointer

Reimplemented from itk::ImageToImageFilter< TDeformationField, TDeformationField >. Reimplemented in itk::DemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >. Definition at line 76 of file itkPDEDeformableRegistrationFilter.h.

template<class TFixedImage, class TMovingImage, class TDeformationField> typedef DeformationFieldType::Pointer itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::DeformationFieldPointer

Reimplemented in itk::DemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >. Definition at line 97 of file itkPDEDeformableRegistrationFilter.h.

template<class TFixedImage, class TMovingImage, class TDeformationField> typedef TDeformationField itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::DeformationFieldType

Deformation field type. Reimplemented in itk::DemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >. Definition at line 96 of file itkPDEDeformableRegistrationFilter.h.

template<class TFixedImage, class TMovingImage, class TDeformationField> typedef Superclass::FiniteDifferenceFunctionType itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::FiniteDifferenceFunctionType

FiniteDifferenceFunction type. Reimplemented from itk::DenseFiniteDifferenceImageFilter< TDeformationField, TDeformationField >. Reimplemented in itk::DemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >. Definition at line 104 of file itkPDEDeformableRegistrationFilter.h.

template<class TFixedImage, class TMovingImage, class TDeformationField> typedef FixedImageType::ConstPointer itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::FixedImageConstPointer

Definition at line 88 of file itkPDEDeformableRegistrationFilter.h.

template<class TFixedImage, class TMovingImage, class TDeformationField> typedef FixedImageType::Pointer itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::FixedImagePointer

Reimplemented in itk::DemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >. Definition at line 87 of file itkPDEDeformableRegistrationFilter.h.

template<class TFixedImage, class TMovingImage, class TDeformationField> typedef TFixedImage itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::FixedImageType

FixedImage image type. Reimplemented in itk::DemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >. Definition at line 86 of file itkPDEDeformableRegistrationFilter.h.

template<class TFixedImage, class TMovingImage, class TDeformationField> typedef MovingImageType::ConstPointer itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::MovingImageConstPointer

Definition at line 93 of file itkPDEDeformableRegistrationFilter.h.

template<class TFixedImage, class TMovingImage, class TDeformationField> typedef MovingImageType::Pointer itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::MovingImagePointer

Reimplemented in itk::DemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >. Definition at line 92 of file itkPDEDeformableRegistrationFilter.h.

template<class TFixedImage, class TMovingImage, class TDeformationField> typedef TMovingImage itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::MovingImageType

MovingImage image type. Reimplemented in itk::DemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >. Definition at line 91 of file itkPDEDeformableRegistrationFilter.h.

template<class TFixedImage, class TMovingImage, class TDeformationField> typedef Superclass::OutputImageType itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::OutputImageType

Types inherithed from the superclass Reimplemented from itk::DenseFiniteDifferenceImageFilter< TDeformationField, TDeformationField >. Definition at line 100 of file itkPDEDeformableRegistrationFilter.h.

template<class TFixedImage, class TMovingImage, class TDeformationField> typedef PDEDeformableRegistrationFunction<FixedImageType,MovingImageType, DeformationFieldType> itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::PDEDeformableRegistrationFunctionType

PDEDeformableRegistrationFilterFunction type. Definition at line 108 of file itkPDEDeformableRegistrationFilter.h.

template<class TFixedImage, class TMovingImage, class TDeformationField> typedef SmartPointer<Self> itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::Pointer

Reimplemented from itk::ImageToImageFilter< TDeformationField, TDeformationField >. Reimplemented in itk::DemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >. Definition at line 75 of file itkPDEDeformableRegistrationFilter.h.

template<class TFixedImage, class TMovingImage, class TDeformationField> typedef PDEDeformableRegistrationFilter itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::Self

Standard class typedefs. Reimplemented from itk::DenseFiniteDifferenceImageFilter< TDeformationField, TDeformationField >. Reimplemented in itk::DemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >. Definition at line 72 of file itkPDEDeformableRegistrationFilter.h.

template<class TFixedImage, class TMovingImage, class TDeformationField> typedef DenseFiniteDifferenceImageFilter< TDeformationField,TDeformationField> itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::Superclass

Reimplemented from itk::DenseFiniteDifferenceImageFilter< TDeformationField, TDeformationField >. Reimplemented in itk::DemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >. Definition at line 74 of file itkPDEDeformableRegistrationFilter.h.

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Constructor & Destructor Documentation

template<class TFixedImage, class TMovingImage, class TDeformationField> itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::PDEDeformableRegistrationFilter (    )  [protected]

template<class TFixedImage, class TMovingImage, class TDeformationField> itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::~PDEDeformableRegistrationFilter (    )  [inline, protected]

Definition at line 152 of file itkPDEDeformableRegistrationFilter.h.

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Member Function Documentation

template<class TFixedImage, class TMovingImage, class TDeformationField> virtual void itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::CopyDeformationField (  DeformationFieldType *    input, DeformationFieldType *    output )  [protected, virtual]

Utitlity to copy one buffered region of one deformation field to another deformation field. For efficiency no region checking is done.

template<class TFixedImage, class TMovingImage, class TDeformationField> virtual void itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::CopyInputToOutput (    )  [protected, virtual]

A simple method to copy the data from the input to the output. If the input does not exist, a zero field is written to the output. Reimplemented from itk::FiniteDifferenceImageFilter< TDeformationField, TDeformationField >.

template<class TFixedImage, class TMovingImage, class TDeformationField> virtual void itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::GenerateInputRequestedRegion (    )  [protected, virtual]

It is difficult to compute in advance the input moving image region required to compute the requested output region. Thus the safest thing to do is to request for the whole moving image. For the fixed image and deformation field, the input requested region set to be the same as that of the output requested region. Reimplemented from itk::FiniteDifferenceImageFilter< TDeformationField, TDeformationField >.

template<class TFixedImage, class TMovingImage, class TDeformationField> virtual void itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::GenerateOutputInformation (    )  [protected, virtual]

By default the output deformation field has the same Spacing, Origin and LargestPossibleRegion as the input/initial deformation field. If the initial deformation field is not set, the output information is copied from the fixed image. Reimplemented from itk::ProcessObject.

template<class TFixedImage, class TMovingImage, class TDeformationField> virtual const char* itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::GetClassName (    )  const [virtual]

Run-time type information (and related methods) Reimplemented from itk::DenseFiniteDifferenceImageFilter< TDeformationField, TDeformationField >. Reimplemented in itk::DemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >.

template<class TFixedImage, class TMovingImage, class TDeformationField> DeformationFieldType* itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::GetDeformationField (  void    )  [inline]

Get output deformation field. Definition at line 131 of file itkPDEDeformableRegistrationFilter.h.

template<class TFixedImage, class TMovingImage, class TDeformationField> const FixedImageType* itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::GetFixedImage (  void    )

Get the fixed image.

template<class TFixedImage, class TMovingImage, class TDeformationField> const MovingImageType* itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::GetMovingImage (  void    )

Get the moving image.

template<class TFixedImage, class TMovingImage, class TDeformationField> virtual unsigned int itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::GetNumberOfIterations (    )  [virtual]

Get the number of iterations to be performed.

template<class TFixedImage, class TMovingImage, class TDeformationField> const double* itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::GetStandardDeviations (  void    )  [inline]

Get the Gaussian smoothing standard deviations. Definition at line 147 of file itkPDEDeformableRegistrationFilter.h.

template<class TFixedImage, class TMovingImage, class TDeformationField> virtual bool itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::Halt (    )  [inline, protected, virtual]

Supplies the halting criteria for this class of filters. The algorithm will stop after a user-specified number of iterations. Implements itk::FiniteDifferenceImageFilter< TDeformationField, TDeformationField >. Definition at line 157 of file itkPDEDeformableRegistrationFilter.h.

template<class TFixedImage, class TMovingImage, class TDeformationField> virtual void itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::InitializeIteration (    )  [protected, virtual]

Initialize the state of filter and equation before each iteration. Progress feeback is implemented as part of this method. Reimplemented from itk::FiniteDifferenceImageFilter< TDeformationField, TDeformationField >. Reimplemented in itk::DemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >.

template<class TFixedImage, class TMovingImage, class TDeformationField> itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::itkStaticConstMacro (  ImageDimension   , unsigned    int, Superclass::ImageDimension    )

Inherit some enums and typedefs from the superclass. Reimplemented from itk::DenseFiniteDifferenceImageFilter< TDeformationField, TDeformationField >.

template<class TFixedImage, class TMovingImage, class TDeformationField> Pointer itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::New (    )  [static]

Method for creation through the object factory. Reimplemented from itk::Object. Reimplemented in itk::DemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >.

template<class TFixedImage, class TMovingImage, class TDeformationField> void itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::PrintSelf (  std::ostream &    os, Indent    indent )  const [protected, virtual]

Methods invoked by Print() to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes. Reimplemented from itk::DenseFiniteDifferenceImageFilter< TDeformationField, TDeformationField >. Reimplemented in itk::DemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >.

template<class TFixedImage, class TMovingImage, class TDeformationField> void itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::SetFixedImage (  const FixedImageType *    ptr )

Set the fixed image.

template<class TFixedImage, class TMovingImage, class TDeformationField> void itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::SetInitialDeformationField (  DeformationFieldType *    ptr )  [inline]

Set initial deformation field. Definition at line 127 of file itkPDEDeformableRegistrationFilter.h.

template<class TFixedImage, class TMovingImage, class TDeformationField> void itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::SetMovingImage (  const MovingImageType *    ptr )

Set the moving image.

template<class TFixedImage, class TMovingImage, class TDeformationField> virtual void itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::SetNumberOfIterations (  unsigned int    _arg )  [virtual]

Set the number of iterations to be performed.

template<class TFixedImage, class TMovingImage, class TDeformationField> virtual void itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::SetStandardDeviations (  double    value )  [virtual]

Set the Gaussian smoothing standard deviations. The values are set with respect to pixel coordinates.

template<class TFixedImage, class TMovingImage, class TDeformationField> virtual void itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::SetStandardDeviations (  double    data[] )  [virtual]

Set the Gaussian smoothing standard deviations. The values are set with respect to pixel coordinates.

template<class TFixedImage, class TMovingImage, class TDeformationField> virtual void itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >::SmoothDeformationField (    )  [protected, virtual]

Utility to smooth the deformation field (represented in the Output) using a Guassian operator. The amount of smoothing can be specified by setting the StandardDeviations.

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The documentation for this class was generated from the following file:

• itkPDEDeformableRegistrationFilter.h

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