itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage > Class Template Reference
[Similarity Metrics of Registration Methods]

Computes similarity between two objects to be registered. More...

#include <itkGradientDifferenceImageToImageMetric.h>

Inheritance diagram for itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >:

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

[legend]List of all members.

Public Types
typedef GradientDifferenceImageToImageMetric	Self
typedef ImageToImageMetric< TFixedImage, TMovingImage >	Superclass
typedef SmartPointer< Self >	Pointer
typedef SmartPointer< const Self >	ConstPointer
typedef Superclass::RealType	RealType
typedef Superclass::TransformType	TransformType
typedef Superclass::TransformPointer	TransformPointer
typedef Superclass::TransformParametersType	TransformParametersType
typedef Superclass::TransformJacobianType	TransformJacobianType
typedef Superclass::MeasureType	MeasureType
typedef Superclass::DerivativeType	DerivativeType
typedef Superclass::FixedImageType	FixedImageType
typedef Superclass::MovingImageType	MovingImageType
typedef Superclass::FixedImageConstPointer	FixedImageConstPointer
typedef Superclass::MovingImageConstPointer	MovingImageConstPointer
typedef TFixedImage::PixelType	FixedImagePixelType
typedef TMovingImage::PixelType	MovedImagePixelType
typedef itk::Image< FixedImagePixelType, itkGetStaticConstMacro(FixedImageDimension)	TransformedMovingImageType )
typedef itk::ResampleImageFilter< MovingImageType, TransformedMovingImageType >	TransformMovingImageFilterType
typedef itk::Image< RealType, itkGetStaticConstMacro(FixedImageDimension)	FixedGradientImageType )
typedef itk::CastImageFilter< FixedImageType, FixedGradientImageType >	CastFixedImageFilterType
typedef CastFixedImageFilterType::Pointer	CastFixedImageFilterPointer
typedef FixedGradientImageType::PixelType	FixedGradientPixelType
typedef itk::Image< RealType, itkGetStaticConstMacro(MovedImageDimension)	MovedGradientImageType )
typedef itk::CastImageFilter< TransformedMovingImageType, MovedGradientImageType >	CastMovedImageFilterType
typedef CastMovedImageFilterType::Pointer	CastMovedImageFilterPointer
typedef MovedGradientImageType::PixelType	MovedGradientPixelType
Public Member Functions
virtual const char *	GetNameOfClass () const
	itkStaticConstMacro (FixedImageDimension, unsigned int, TFixedImage::ImageDimension)
	itkStaticConstMacro (MovedImageDimension, unsigned int, MovingImageType::ImageDimension)
void	GetDerivative (const TransformParametersType &parameters, DerivativeType &derivative) const
MeasureType	GetValue (const TransformParametersType &parameters) const
void	GetValueAndDerivative (const TransformParametersType &parameters, MeasureType &Value, DerivativeType &derivative) const
virtual void	Initialize (void) throw ( ExceptionObject )
void	WriteGradientImagesToFiles (void) const
Static Public Member Functions
Pointer	New ()
Protected Types
typedef NeighborhoodOperatorImageFilter< FixedGradientImageType, FixedGradientImageType >	FixedSobelFilter
typedef NeighborhoodOperatorImageFilter< MovedGradientImageType, MovedGradientImageType >	MovedSobelFilter
Protected Member Functions
	GradientDifferenceImageToImageMetric ()
virtual	~GradientDifferenceImageToImageMetric ()
void	PrintSelf (std::ostream &os, Indent indent) const
void	ComputeMovedGradientRange (void) const
void	ComputeVariance (void) const
MeasureType	ComputeMeasure (const TransformParametersType &parameters, const double *subtractionFactor) const

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Detailed Description

template<class TFixedImage, class TMovingImage>
class itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >

Computes similarity between two objects to be registered.

This Class is templated over the type of the Images to be compared and over the type of transformation and Iterpolator to be used.

This metric computes the sum of squared differences between pixels in the derivatives of the moving and fixed images after passing the squared difference through a function of type .

Spatial correspondance between both images is established through a Transform. Pixel values are taken from the Moving image. Their positions are mapped to the Fixed image and result in general in non-grid position on it. Values at these non-grid position of the Fixed image are interpolated using a user-selected Interpolator.

Implementation of this class is based on: Hipwell, J. H., et. al. (2003), "Intensity-Based 2-D-3D Registration of Cerebral Angiograms,", IEEE Transactions on Medical Imaging, 22(11):1417-1426.

Definition at line 54 of file itkGradientDifferenceImageToImageMetric.h.

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Member Typedef Documentation

template<class TFixedImage, class TMovingImage> typedef CastFixedImageFilterType::Pointer itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::CastFixedImageFilterPointer

Definition at line 112 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef itk::CastImageFilter< FixedImageType, FixedGradientImageType > itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::CastFixedImageFilterType

Definition at line 111 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef CastMovedImageFilterType::Pointer itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::CastMovedImageFilterPointer

Definition at line 128 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef itk::CastImageFilter< TransformedMovingImageType, MovedGradientImageType > itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::CastMovedImageFilterType

Definition at line 127 of file itkGradientDifferenceImageToImageMetric.h.

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

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 64 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::DerivativeType itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::DerivativeType

Type of the derivative. Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 86 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef itk::Image< RealType, itkGetStaticConstMacro( FixedImageDimension ) itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::FixedGradientImageType)

Sobel filters to compute the gradients of the Fixed Image Definition at line 108 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef FixedGradientImageType::PixelType itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::FixedGradientPixelType

Definition at line 114 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::FixedImageConstPointer itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::FixedImageConstPointer

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 89 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef TFixedImage::PixelType itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::FixedImagePixelType

Definition at line 92 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::FixedImageType itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::FixedImageType

Type of the fixed Image. Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 87 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef NeighborhoodOperatorImageFilter< FixedGradientImageType, FixedGradientImageType > itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::FixedSobelFilter [protected]

Definition at line 167 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::MeasureType itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::MeasureType

Type of the measure. Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 85 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef itk::Image< RealType, itkGetStaticConstMacro( MovedImageDimension ) itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::MovedGradientImageType)

Definition at line 124 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef MovedGradientImageType::PixelType itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::MovedGradientPixelType

Definition at line 130 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef TMovingImage::PixelType itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::MovedImagePixelType

Definition at line 93 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef NeighborhoodOperatorImageFilter< MovedGradientImageType, MovedGradientImageType > itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::MovedSobelFilter [protected]

Definition at line 170 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::MovingImageConstPointer itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::MovingImageConstPointer

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 90 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::MovingImageType itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::MovingImageType

Type of the moving Image. Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 88 of file itkGradientDifferenceImageToImageMetric.h.

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

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 63 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::RealType itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::RealType

Types transferred from the base class Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 78 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef GradientDifferenceImageToImageMetric itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::Self

Standard class typedefs. Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 60 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef ImageToImageMetric<TFixedImage, TMovingImage > itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::Superclass

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 61 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef itk::Image< FixedImagePixelType, itkGetStaticConstMacro( FixedImageDimension ) itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::TransformedMovingImageType)

Types for transforming the moving image Definition at line 99 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::TransformJacobianType itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::TransformJacobianType

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 83 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef itk::ResampleImageFilter< MovingImageType, TransformedMovingImageType > itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::TransformMovingImageFilterType

Definition at line 102 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::TransformParametersType itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::TransformParametersType

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 82 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::TransformPointer itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::TransformPointer

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 81 of file itkGradientDifferenceImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::TransformType itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::TransformType

Type of the Transform Base class Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 80 of file itkGradientDifferenceImageToImageMetric.h.

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Constructor & Destructor Documentation

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

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

Definition at line 153 of file itkGradientDifferenceImageToImageMetric.h.

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Member Function Documentation

template<class TFixedImage, class TMovingImage> MeasureType itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::ComputeMeasure (  const TransformParametersType &  parameters, const double *  subtractionFactor )  const [protected]

Compute the similarity measure using a specified subtraction factor.

template<class TFixedImage, class TMovingImage> void itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::ComputeMovedGradientRange (  void   )  const [protected]

Compute the range of the moved image gradients.

template<class TFixedImage, class TMovingImage> void itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::ComputeVariance (  void   )  const [protected]

Compute the variance and range of the moving image gradients.

template<class TFixedImage, class TMovingImage> void itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::GetDerivative (  const TransformParametersType &  parameters, DerivativeType &  derivative )  const

Get the derivatives of the match measure.

template<class TFixedImage, class TMovingImage> virtual const char* itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::GetNameOfClass (   )  const [virtual]

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

template<class TFixedImage, class TMovingImage> MeasureType itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::GetValue (  const TransformParametersType &  parameters  )  const

Get the value for single valued optimizers.

template<class TFixedImage, class TMovingImage> void itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::GetValueAndDerivative (  const TransformParametersType &  parameters, MeasureType &  Value, DerivativeType &  derivative )  const

Get value and derivatives for multiple valued optimizers.

template<class TFixedImage, class TMovingImage> virtual void itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::Initialize (  void   )  throw ( ExceptionObject ) [virtual]

Initialize the Metric by making sure that all the components are present and plugged together correctly Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

template<class TFixedImage, class TMovingImage> itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::itkStaticConstMacro (  MovedImageDimension  , unsigned  int, MovingImageType::ImageDimension  )

Sobel filters to compute the gradients of the Moved Image

template<class TFixedImage, class TMovingImage> itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::itkStaticConstMacro (  FixedImageDimension  , unsigned  int, TFixedImage::ImageDimension  )

Constants for the image dimensions Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

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

Method for creation through the object factory. Reimplemented from itk::Object.

template<class TFixedImage, class TMovingImage> void itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::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::ImageToImageMetric< TFixedImage, TMovingImage >.

template<class TFixedImage, class TMovingImage> void itk::GradientDifferenceImageToImageMetric< TFixedImage, TMovingImage >::WriteGradientImagesToFiles (  void   )  const

Write gradient images to a files for debugging purposes.

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

• itkGradientDifferenceImageToImageMetric.h

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