#include <itkImageToImageMetricv4.h>

Inheritance diagram for itk::ImageToImageMetricv4< TFixedImage, TMovingImage, TVirtualImage, TMetricTraits >:

Collaboration diagram for itk::ImageToImageMetricv4< TFixedImage, TMovingImage, TVirtualImage, TMetricTraits >:

Detailed Description

template<class TFixedImage, class TMovingImage, class TVirtualImage = TFixedImage, typename TMetricTraits = DefaultImageToImageMetricTraitsv4< TFixedImage, TMovingImage, TVirtualImage >>
class itk::ImageToImageMetricv4< TFixedImage, TMovingImage, TVirtualImage, TMetricTraits >

Computes similarity between regions of two images, using two user-supplied transforms, a 'fixed' transform and a 'moving' transform.

Warning: Integer-type images are not yet supported. See concept-checking in DefaultImageToImageMetricTraitsv4.

Templated over the fixed and moving image types, as well as an optional VirtualImage type to define the virtual domain. The VirtualImage type defaults to TFixedImage.

Note: If TFixedImage is type VectorImage, then TVirtualImage must be set separately to a non-VectorImage type, e.g. Image<unsigned char, dimension>.

If the user does not set the virtual domain explicitly, then it is created during the call to Initialize from the fixed image by copying its information. See ObjectToObjectMetric for more discussion on the virtual domain.

At a minimum, the user must: 1) Set images using SetFixedImage and SetMovingImage. 2) Call Initialize.

Image gradient calculations

Image gradients can be calculated in one of two ways: 1) Using a gradient image filter, by setting Use[Fixed|Moving]ImageGradientFilter to true. By default this is set as an itkGradientRecursiveGaussianImageFilter, a smoothed gradient filter. A filter uses more memory, because it calculates all gradients at once and stores them in an image. The advantage of pre-calculation is for the fixed image gradients, since they only need be calculated once, and for metrics that need to access image gradients more than once for a particular point. The fixed image gradients are only calculated once when this option is set, during Initialize. 2) Otherwise, an image gradient calculator based on ImageFunction is used. By default the CentralDifferenceImageFunction is used. This calculation is not smoothed and gives different results than GradientRecursiveGaussianImageFilter. The advantage is that less memory is used. However for the fixed image, it means needlessly computing the image gradients at each iteration of a registration instead of just computing once at the beginning. The user can supply a different function by calling SetFixedImageGradientCalculator and/or SetMovingImageGradientCalculator.

Both image gradient calculation methods are threaded. Generally it is not recommended to use different image gradient methods for the fixed and moving images because the methods return different results.

Image Masks

Image masks are supported using SetMovingImageMask or SetFixedImageMask. If the image mask is sparse, see the comments for use of sparse point sets.

Sparse Sampling

Sparse sampling is performed by supplying an arbitrary point list over which to evaluate the metric. It's presumed that the user will be working in terms of the fixed image domain, and thus the point list is expected to be in the fixed domain. Internally, the points are transformed into the virtual domain as needed.

Note: The attributes/data of each point in the set are not used, but rather the point's geometric coordinates. Point sets are set via SetFixedSampledPointSet, and the point set is enabled for use by calling SetUseFixedSampledPointSet.; If the point set is sparse, the option SetUse[Fixed|Moving]ImageGradientFilter typically should be disabled to avoid excessive computation. However, the gradient values of the fixed image are not cached when using a point set (there are plans for this in the future), so depending on the number of iterations (when used during optimization) and the level of sparsity, it may be more efficient to use a gradient image filter for it because it will only be calculated once.

Vector Images

To support vector images, the class must be declared using the VectorImageToImageMetricTraitsv4 class in the template declaration, as described above. Derived classes must provide special handling for vector pixel types. MeanSquaresImageToImageMetricv4 can be used as an example.

Threading

This class is threaded. Threading is handled by friend classes ImageToImageMetricv4GetValueAndDerivativeThreaderBase and ImageToImageMetricv4GetValueAndDerivativeThreader. Dense and sparse evaluation are handled by template specialization of the ImageToImageMetricv4GetValueAndDerivativeThreader::ThreadedExecution method, in order to iterate over either all points in the virtual space in the case of dense evaluation, or a list of points in the sparse case.

Methods and members of ImageToImageMetricv4 are accessed by the threading class using its m_Associate member, which points to the containing instance of ImageToImageMetricv4.

Pre- and post-processing for threaded operation is handled in ImageToImageMetricv4GetValueAndDerivativeThreaderBase::BeforeThreadedExecution, and ImageToImageMetricv4GetValueAndDerivativeThreaderBase::AfterThreadedExecution, respectively.

Derived classes:

The GetValue method may be overridden to provide better-optimized or otherwise different behavior as needed. Otherwise, the m_ComputeDerivative member should be checked to avoid computing derivatives when the caller has called GetValue(). See GetComputeDerivative() in this class and in this metric's threader class.

Derived classes must derive a threader class from ImageToImageMetricv4GetValueAndDerivativeThreader, from which a DenseGetValueAndDerivativeThreader and SparseGetValueAndDerivativeThreader must be defined. Then,

this->m_DenseGetValueAndDerivativeThreader = DenseDerivedClassGetValueAndDerivativeThreader::New();

this->m_SparseGetValueAndDerivativeThreader = SparseDerivedClassGetValueAndDerivativeThreader::New();

must be called in the constructor.

The ProcessPoint method of the derived threader must be overriden to provide the metric-specific evaluation.

To access methods and members within the derived metric class from the derived threader class, the user must cast m_Associate to the type of the derived metric class.

See ImageToImageMetricv4Test for a clear example of what a derived class must implement and do.

Definition at line 169 of file itkImageToImageMetricv4.h.

Public Types
typedef SmartPointer< const Self >	ConstPointer

typedef Superclass::CoordinateRepresentationType	CoordinateRepresentationType

typedef MetricTraits::DefaultFixedImageGradientCalculator	DefaultFixedImageGradientCalculator

typedef MetricTraits::DefaultFixedImageGradientFilter	DefaultFixedImageGradientFilter

typedef MetricTraits::DefaultMovingImageGradientCalculator	DefaultMovingImageGradientCalculator

typedef MetricTraits::DefaultMovingImageGradientFilter	DefaultMovingImageGradientFilter

typedef Superclass::DerivativeType	DerivativeType

typedef DerivativeType::ValueType	DerivativeValueType

typedef Superclass::DimensionType	DimensionType

typedef MetricTraits::FixedGradientPixelType	FixedGradientPixelType

typedef CovariantVector < typename FixedImageGradientType::ValueType, FixedImageDimension >	FixedImageComponentGradientType

typedef FixedImageType::ConstPointer	FixedImageConstPointer

typedef FixedImageGradientCalculatorType::Pointer	FixedImageGradientCalculatorPointer

typedef MetricTraits::FixedImageGradientCalculatorType	FixedImageGradientCalculatorType

typedef FixedImageGradientFilterType::Pointer	FixedImageGradientFilterPointer

typedef MetricTraits::FixedImageGradientFilterType	FixedImageGradientFilterType

typedef FixedImageGradientImageType::Pointer	FixedImageGradientImagePointer

typedef MetricTraits::FixedImageGradientImageType	FixedImageGradientImageType

typedef MetricTraits::FixedImageGradientType	FixedImageGradientType

typedef FixedImageType::IndexType	FixedImageIndexType

typedef FixedImageMaskType::ConstPointer	FixedImageMaskConstPointer

typedef FixedImageMaskType::Pointer	FixedImageMaskPointer

typedef SpatialObject < itkGetStaticConstMacro(FixedImageDimension) >	FixedImageMaskType

typedef FixedImageType::PixelType	FixedImagePixelType

typedef FixedImageType::Pointer	FixedImagePointer

typedef FixedImageType::PointType	FixedImagePointType

typedef TFixedImage	FixedImageType

typedef Superclass::FixedInputPointType	FixedInputPointType

typedef FixedInterpolatorType::Pointer	FixedInterpolatorPointer

typedef InterpolateImageFunction < FixedImageType, CoordinateRepresentationType >	FixedInterpolatorType

typedef Superclass::FixedOutputPointType	FixedOutputPointType

typedef FixedImagePixelType	FixedPixelType

typedef MetricTraits::FixedRealType	FixedRealType

typedef FixedSampledPointSetType::ConstPointer	FixedSampledPointSetConstPointer

typedef FixedSampledPointSetType::Pointer	FixedSampledPointSetPointer

typedef PointSet< typename FixedImageType::PixelType, itkGetStaticConstMacro(FixedImageDimension)>	FixedSampledPointSetType

typedef NumericTraits < FixedRealType > ::ScalarRealType	FixedScalarRealType

typedef Superclass::FixedTransformJacobianType	FixedTransformJacobianType

typedef Superclass::FixedTransformParametersType	FixedTransformParametersType

typedef Superclass::FixedTransformPointer	FixedTransformPointer

typedef Superclass::FixedTransformType	FixedTransformType

typedef Superclass::GradientSourceType	GradientSourceType

typedef Superclass::DimensionType	ImageDimensionType

typedef Superclass::InternalComputationValueType	InternalComputationValueType

typedef Superclass::JacobianType	JacobianType

typedef Superclass::MeasureType	MeasureType

typedef TMetricTraits	MetricTraits

typedef MetricTraits::MovingGradientPixelType	MovingGradientPixelType

typedef CovariantVector < typename MovingImageGradientType::ValueType, MovingImageDimension >	MovingImageComponentGradientType

typedef MovingImageType::ConstPointer	MovingImageConstPointer

typedef MovingImageGradientCalculatorType::Pointer	MovingImageGradientCalculatorPointer

typedef MetricTraits::MovingImageGradientCalculatorType	MovingImageGradientCalculatorType

typedef MovingImageGradientFilterType::Pointer	MovingImageGradientFilterPointer

typedef MetricTraits::MovingImageGradientFilterType	MovingImageGradientFilterType

typedef MovingImageGradientImageType::Pointer	MovingImageGradientImagePointer

typedef MetricTraits::MovingImageGradientImageType	MovingImageGradientImageType

typedef MetricTraits::MovingImageGradientType	MovingImageGradientType

typedef MovingImageType::IndexType	MovingImageIndexType

typedef MovingImageMaskType::ConstPointer	MovingImageMaskConstPointer

typedef MovingImageMaskType::Pointer	MovingImageMaskPointer

typedef SpatialObject < itkGetStaticConstMacro(MovingImageDimension) >	MovingImageMaskType

typedef MovingImageType::PixelType	MovingImagePixelType

typedef MovingImageType::Pointer	MovingImagePointer

typedef MovingImageType::PointType	MovingImagePointType

typedef MovingImageType::RegionType	MovingImageRegionType

typedef TMovingImage	MovingImageType

typedef Superclass::MovingInputPointType	MovingInputPointType

typedef MovingInterpolatorType::Pointer	MovingInterpolatorPointer

typedef InterpolateImageFunction < MovingImageType, CoordinateRepresentationType >	MovingInterpolatorType

typedef Superclass::MovingOutputPointType	MovingOutputPointType

typedef MovingImagePixelType	MovingPixelType

typedef MetricTraits::MovingRealType	MovingRealType

typedef NumericTraits < MovingRealType > ::ScalarRealType	MovingScalarRealType

typedef Superclass::MovingTransformJacobianType	MovingTransformJacobianType

typedef Superclass::MovingTransformParametersType	MovingTransformParametersType

typedef Superclass::MovingTransformPointer	MovingTransformPointer

typedef Superclass::MovingTransformType	MovingTransformType

typedef Superclass::NumberOfParametersType	NumberOfParametersType

typedef Superclass::ParametersType	ParametersType

typedef Superclass::ParametersValueType	ParametersValueType

typedef SmartPointer< Self >	Pointer

typedef ImageToImageMetricv4	Self

typedef ObjectToObjectMetric < TFixedImage::ImageDimension, TMovingImage::ImageDimension, TVirtualImage >	Superclass

typedef Superclass::VirtualDirectionType	VirtualDirectionType

typedef CovariantVector < typename VirtualImageGradientType::ValueType, VirtualImageDimension >	VirtualImageComponentGradientType

typedef MetricTraits::VirtualImageGradientType	VirtualImageGradientType

typedef Superclass::VirtualImagePointer	VirtualImagePointer

typedef Superclass::VirtualImageType	VirtualImageType

typedef Superclass::VirtualIndexType	VirtualIndexType

typedef Superclass::VirtualPointType	VirtualOriginType

typedef Superclass::VirtualPixelType	VirtualPixelType

typedef Superclass::VirtualPointSetPointer	VirtualPointSetPointer

typedef Superclass::VirtualPointSetType	VirtualPointSetType

typedef Superclass::VirtualPointType	VirtualPointType

typedef Superclass::VirtualSizeType	VirtualRadiusType

typedef Superclass::VirtualRegionType	VirtualRegionType

typedef Superclass::VirtualSizeType	VirtualSizeType

typedef Superclass::VirtualSpacingType	VirtualSpacingType

Public Types inherited from itk::ObjectToObjectMetric< TFixedImage::ImageDimension, TMovingImage::ImageDimension, TVirtualImage >
typedef SmartPointer< const Self >	ConstPointer

typedef Superclass::ParametersValueType	CoordinateRepresentationType

typedef Superclass::DerivativeType	DerivativeType

typedef Superclass::DerivativeValueType	DerivativeValueType

typedef SizeValueType	DimensionType

typedef FixedTransformType::InputPointType	FixedInputPointType

typedef FixedTransformType::OutputPointType	FixedOutputPointType

typedef FixedTransformType::JacobianType	FixedTransformJacobianType

typedef FixedTransformType::ParametersType	FixedTransformParametersType

typedef FixedTransformType::Pointer	FixedTransformPointer

typedef Transform < ParametersValueType, TVirtualImage::ImageDimension, TFixedDimension >	FixedTransformType

typedef Superclass::InternalComputationValueType	InternalComputationValueType

typedef FixedTransformType::JacobianType	JacobianType

typedef Superclass::MeasureType	MeasureType

typedef DisplacementFieldTransform < CoordinateRepresentationType, itkGetStaticConstMacro(MovingDimension) >	MovingDisplacementFieldTransformType

typedef MovingTransformType::InputPointType	MovingInputPointType

typedef MovingTransformType::OutputPointType	MovingOutputPointType

typedef MovingTransformType::JacobianType	MovingTransformJacobianType

typedef MovingTransformType::ParametersType	MovingTransformParametersType

typedef MovingTransformType::Pointer	MovingTransformPointer

typedef Transform < ParametersValueType, TVirtualImage::ImageDimension, TMovingDimension >	MovingTransformType

typedef Superclass::NumberOfParametersType	NumberOfParametersType

typedef Superclass::ParametersType	ParametersType

typedef Superclass::ParametersValueType	ParametersValueType

typedef SmartPointer< Self >	Pointer

typedef ObjectToObjectMetric	Self

typedef ObjectToObjectMetricBase	Superclass

typedef VirtualImageType::DirectionType	VirtualDirectionType

typedef VirtualImageType::ConstPointer	VirtualImageConstPointer

typedef VirtualImageType::Pointer	VirtualImagePointer

typedef TVirtualImage	VirtualImageType

typedef VirtualImageType::IndexType	VirtualIndexType

typedef VirtualImageType::PointType	VirtualOriginType

typedef VirtualImageType::PixelType	VirtualPixelType

typedef VirtualPointSetType::Pointer	VirtualPointSetPointer

typedef PointSet < VirtualPixelType, itkGetStaticConstMacro(VirtualDimension)>	VirtualPointSetType

typedef VirtualImageType::PointType	VirtualPointType

typedef VirtualImageType::SizeType	VirtualRadiusType

typedef VirtualImageType::RegionType	VirtualRegionType

typedef VirtualRegionType::SizeType	VirtualSizeType

typedef VirtualImageType::SpacingType	VirtualSpacingType

Public Types inherited from itk::ObjectToObjectMetricBase
typedef SmartPointer< const Self >	ConstPointer

typedef Superclass::ParametersValueType	CoordinateRepresentationType

typedef Superclass::DerivativeType	DerivativeType

typedef DerivativeType::ValueType	DerivativeValueType

enum	GradientSourceType { GRADIENT_SOURCE_FIXED =0, GRADIENT_SOURCE_MOVING, GRADIENT_SOURCE_BOTH }

typedef double	InternalComputationValueType

typedef Superclass::MeasureType	MeasureType

typedef unsigned int	NumberOfParametersType

typedef Superclass::ParametersType	ParametersType

typedef Superclass::ParametersValueType	ParametersValueType

typedef SmartPointer< Self >	Pointer

typedef ObjectToObjectMetricBase	Self

typedef SingleValuedCostFunctionv4	Superclass

Public Types inherited from itk::SingleValuedCostFunctionv4
typedef SmartPointer< const Self >	ConstPointer

typedef Array < ParametersValueType >	DerivativeType

typedef double	MeasureType

typedef Superclass::ParametersType	ParametersType

typedef Superclass::ParametersValueType	ParametersValueType

typedef SmartPointer< Self >	Pointer

typedef SingleValuedCostFunctionv4	Self

typedef CostFunction	Superclass

Public Types inherited from itk::CostFunction
typedef SmartPointer< const Self >	ConstPointer

typedef OptimizerParameters < ParametersValueType >	ParametersType

typedef double	ParametersValueType

typedef SmartPointer< Self >	Pointer

typedef CostFunction	Self

typedef Object	Superclass

Public Types inherited from itk::Object
typedef SmartPointer< const Self >	ConstPointer

typedef SmartPointer< Self >	Pointer

typedef Object	Self

typedef LightObject	Superclass

Public Types inherited from itk::LightObject
typedef SmartPointer< const Self >	ConstPointer

typedef SmartPointer< Self >	Pointer

typedef LightObject	Self

Public Member Functions
virtual void	GetDerivative (DerivativeType &) const

virtual const FixedImageType *	GetFixedImage ()

virtual const FixedImageGradientImageType *	GetFixedImageGradientImage ()

virtual const FixedInterpolatorType *	GetFixedInterpolator ()

virtual const MovingImageType *	GetMovingImage ()

virtual const MovingImageGradientImageType *	GetMovingImageGradientImage ()

virtual const MovingInterpolatorType *	GetMovingInterpolator ()

virtual const char *	GetNameOfClass () const

SizeValueType	GetNumberOfDomainPoints () const

virtual const SizeValueType &	GetNumberOfSkippedFixedSampledPoints ()

virtual ThreadIdType	GetNumberOfThreadsUsed () const

virtual SizeValueType	GetNumberOfValidPoints () const

virtual MeasureType	GetValue () const

virtual void	GetValueAndDerivative (MeasureType &value, DerivativeType &derivative) const

virtual const VirtualPointSetType *	GetVirtualSampledPointSet ()

virtual void	Initialize (void) throw ( itk::ExceptionObject )

virtual void	SetFixedImage (const FixedImageType *_arg)

virtual void	SetFixedInterpolator (FixedInterpolatorType *_arg)

virtual void	SetMovingImage (const MovingImageType *_arg)

virtual void	SetMovingInterpolator (MovingInterpolatorType *_arg)

virtual bool	SupportsArbitraryVirtualDomainSamples (void) const


virtual void	SetMovingImageMask (MovingImageMaskType *_arg)

virtual void	SetMovingImageMask (const MovingImageMaskType *_arg)

virtual const MovingImageMaskType *	GetMovingImageMask ()


virtual void	SetFixedImageMask (FixedImageMaskType *_arg)

virtual void	SetFixedImageMask (const FixedImageMaskType *_arg)

virtual const FixedImageMaskType *	GetFixedImageMask ()


virtual void	SetFixedSampledPointSet (FixedSampledPointSetType *_arg)

virtual void	SetFixedSampledPointSet (const FixedSampledPointSetType *_arg)

virtual const FixedSampledPointSetType *	GetFixedSampledPointSet ()


virtual void	SetUseFixedSampledPointSet (bool _arg)

virtual const bool &	GetUseFixedSampledPointSet ()

virtual void	UseFixedSampledPointSetOn ()

virtual void	UseFixedSampledPointSetOff ()


virtual void	SetFixedImageGradientFilter (FixedImageGradientFilterType *_arg)

virtual FixedImageGradientFilterType *	GetFixedImageGradientFilter ()

virtual void	SetMovingImageGradientFilter (MovingImageGradientFilterType *_arg)

virtual MovingImageGradientFilterType *	GetMovingImageGradientFilter ()


virtual void	SetFixedImageGradientCalculator (FixedImageGradientCalculatorType *_arg)

virtual FixedImageGradientCalculatorType *	GetFixedImageGradientCalculator ()

virtual void	SetMovingImageGradientCalculator (MovingImageGradientCalculatorType *_arg)

virtual MovingImageGradientCalculatorType *	GetMovingImageGradientCalculator ()


virtual void	SetUseFixedImageGradientFilter (bool _arg)

virtual const bool &	GetUseFixedImageGradientFilter ()

virtual void	UseFixedImageGradientFilterOn ()

virtual void	UseFixedImageGradientFilterOff ()


virtual void	SetUseMovingImageGradientFilter (bool _arg)

virtual const bool &	GetUseMovingImageGradientFilter ()

virtual void	UseMovingImageGradientFilterOn ()

virtual void	UseMovingImageGradientFilterOff ()


virtual void	SetMaximumNumberOfThreads (const ThreadIdType threads)

virtual ThreadIdType	GetMaximumNumberOfThreads () const


virtual void	SetUseFloatingPointCorrection (bool _arg)

virtual const bool &	GetUseFloatingPointCorrection ()

virtual void	UseFloatingPointCorrectionOn ()

virtual void	UseFloatingPointCorrectionOff ()


virtual void	SetFloatingPointCorrectionResolution (DerivativeValueType _arg)

virtual DerivativeValueType	GetFloatingPointCorrectionResolution () const

Public Member Functions inherited from itk::ObjectToObjectMetric< TFixedImage::ImageDimension, TMovingImage::ImageDimension, TVirtualImage >
OffsetValueType	ComputeParameterOffsetFromVirtualIndex (const VirtualIndexType &index, const NumberOfParametersType &numberOfLocalParameters) const

OffsetValueType	ComputeParameterOffsetFromVirtualPoint (const VirtualPointType &point, const NumberOfParametersType &numberOfLocalParameters) const

virtual const FixedTransformType *	GetFixedTransform ()

virtual const MovingTransformType *	GetMovingTransform ()

virtual NumberOfParametersType	GetNumberOfLocalParameters () const

virtual NumberOfParametersType	GetNumberOfParameters () const

virtual const ParametersType &	GetParameters () const

const MovingTransformType *	GetTransform ()

VirtualDirectionType	GetVirtualDirection (void) const

virtual const TimeStamp &	GetVirtualDomainTimeStamp (void) const

virtual const VirtualImageType *	GetVirtualImage ()

VirtualOriginType	GetVirtualOrigin (void) const

const VirtualRegionType &	GetVirtualRegion (void) const

VirtualSpacingType	GetVirtualSpacing (void) const

virtual bool	HasLocalSupport () const

virtual void	SetFixedTransform (FixedTransformType *_arg)

virtual void	SetMovingTransform (MovingTransformType *_arg)

virtual void	SetParameters (ParametersType &params)

void	SetTransform (MovingTransformType *transform)

void	SetVirtualDomain (const VirtualSpacingType &spacing, const VirtualOriginType &origin, const VirtualDirectionType &direction, const VirtualRegionType &region)

virtual void	UpdateTransformParameters (const DerivativeType &derivative, ParametersValueType factor)

void	SetVirtualDomainFromImage (VirtualImageType *virtualImage)

void	SetVirtualDomainFromImage (const VirtualImageType *virtualImage)

bool	IsInsideVirtualDomain (const VirtualPointType &point) const

bool	IsInsideVirtualDomain (const VirtualIndexType &index) const

Public Member Functions inherited from itk::ObjectToObjectMetricBase
MeasureType	GetCurrentValue () const

virtual GradientSourceType	GetGradientSource () const

bool	GetGradientSourceIncludesFixed () const

bool	GetGradientSourceIncludesMoving () const

virtual void	GetValueAndDerivative (MeasureType &value, DerivativeType &derivative) const =0

virtual void	SetGradientSource (GradientSourceType _arg)

Public Member Functions inherited from itk::SingleValuedCostFunctionv4
virtual void	GetValueAndDerivative (MeasureType &value, DerivativeType &derivative) const =0

Static Public Attributes
static const DimensionType	FixedImageDimension = Superclass::FixedDimension

static const DimensionType	MovingImageDimension = Superclass::MovingDimension

static const DimensionType	VirtualImageDimension = Superclass::VirtualDimension

Static Public Attributes inherited from itk::ObjectToObjectMetric< TFixedImage::ImageDimension, TMovingImage::ImageDimension, TVirtualImage >
static const DimensionType	FixedDimension

static const DimensionType	MovingDimension

static const DimensionType	VirtualDimension

Protected Types
typedef LinearInterpolateImageFunction < FixedImageGradientImageType, CoordinateRepresentationType >	FixedImageGradientInterpolatorType

typedef LinearInterpolateImageFunction < MovingImageGradientImageType, CoordinateRepresentationType >	MovingImageGradientInterpolatorType

Protected Member Functions
virtual void	ComputeFixedImageGradientAtPoint (const FixedImagePointType &mappedPoint, FixedImageGradientType &gradient) const

virtual void	ComputeFixedImageGradientFilterImage ()

virtual void	ComputeMovingImageGradientAtPoint (const MovingImagePointType &mappedPoint, MovingImageGradientType &gradient) const

virtual void	ComputeMovingImageGradientFilterImage () const

virtual bool	GetComputeDerivative () const

virtual void	GetValueAndDerivativeExecute () const

	ImageToImageMetricv4 ()

virtual void	InitializeForIteration () const

void	PrintSelf (std::ostream &os, Indent indent) const

bool	TransformAndEvaluateFixedPoint (const VirtualPointType &virtualPoint, FixedImagePointType &mappedFixedPoint, FixedImagePixelType &mappedFixedPixelValue) const

bool	TransformAndEvaluateMovingPoint (const VirtualPointType &virtualPoint, MovingImagePointType &mappedMovingPoint, MovingImagePixelType &mappedMovingPixelValue) const

virtual	~ImageToImageMetricv4 ()


virtual void	InitializeDefaultFixedImageGradientFilter (void)

virtual void	InitializeDefaultMovingImageGradientFilter (void)

Protected Member Functions inherited from itk::ObjectToObjectMetric< TFixedImage::ImageDimension, TMovingImage::ImageDimension, TVirtualImage >
MovingDisplacementFieldTransformType *	GetMovingDisplacementFieldTransform () const

	ObjectToObjectMetric ()

void	PrintSelf (std::ostream &os, Indent indent) const

bool	TransformPhysicalPointToVirtualIndex (const VirtualPointType &, VirtualIndexType &) const

void	TransformVirtualIndexToPhysicalPoint (const VirtualIndexType &, VirtualPointType &) const

virtual void	VerifyDisplacementFieldSizeAndPhysicalSpace ()

bool	VerifyNumberOfValidPoints (MeasureType &value, DerivativeType &derivative) const

virtual	~ObjectToObjectMetric ()

Protected Member Functions inherited from itk::ObjectToObjectMetricBase
	ObjectToObjectMetricBase ()

virtual	~ObjectToObjectMetricBase ()

Protected Member Functions inherited from itk::SingleValuedCostFunctionv4
	SingleValuedCostFunctionv4 ()

virtual	~SingleValuedCostFunctionv4 ()

Protected Member Functions inherited from itk::CostFunction
	CostFunction ()

virtual	~CostFunction ()

Protected Member Functions inherited from itk::Object
	Object ()

bool	PrintObservers (std::ostream &os, Indent indent) const

virtual void	SetTimeStamp (const TimeStamp &time)

virtual	~Object ()

Protected Member Functions inherited from itk::LightObject
virtual LightObject::Pointer	InternalClone () const

	LightObject ()

virtual void	PrintHeader (std::ostream &os, Indent indent) const

virtual void	PrintTrailer (std::ostream &os, Indent indent) const

virtual	~LightObject ()

Protected Attributes
DefaultFixedImageGradientCalculator::Pointer	m_DefaultFixedImageGradientCalculator

DefaultFixedImageGradientFilter::Pointer	m_DefaultFixedImageGradientFilter

DefaultMovingImageGradientCalculator::Pointer	m_DefaultMovingImageGradientCalculator

DefaultMovingImageGradientFilter::Pointer	m_DefaultMovingImageGradientFilter

ImageToImageMetricv4GetValueAndDerivativeThreader < ThreadedImageRegionPartitioner < VirtualImageDimension > , Self >::Pointer	m_DenseGetValueAndDerivativeThreader

DerivativeType *	m_DerivativeResult

FixedImageConstPointer	m_FixedImage

FixedImageGradientCalculatorPointer	m_FixedImageGradientCalculator

FixedImageGradientFilterPointer	m_FixedImageGradientFilter

FixedImageGradientImagePointer	m_FixedImageGradientImage

FixedImageGradientInterpolatorType::Pointer	m_FixedImageGradientInterpolator

FixedImageMaskConstPointer	m_FixedImageMask

FixedInterpolatorPointer	m_FixedInterpolator

FixedSampledPointSetConstPointer	m_FixedSampledPointSet

MovingImageConstPointer	m_MovingImage

MovingImageGradientCalculatorPointer	m_MovingImageGradientCalculator

MovingImageGradientFilterPointer	m_MovingImageGradientFilter

MovingImageGradientImagePointer	m_MovingImageGradientImage

MovingImageGradientInterpolatorType::Pointer	m_MovingImageGradientInterpolator

MovingImageMaskConstPointer	m_MovingImageMask

MovingInterpolatorPointer	m_MovingInterpolator

ImageToImageMetricv4GetValueAndDerivativeThreader < ThreadedIndexedContainerPartitioner, Self >::Pointer	m_SparseGetValueAndDerivativeThreader

bool	m_UseFixedImageGradientFilter

bool	m_UseFixedSampledPointSet

bool	m_UseMovingImageGradientFilter

VirtualPointSetPointer	m_VirtualSampledPointSet

Protected Attributes inherited from itk::ObjectToObjectMetric< TFixedImage::ImageDimension, TMovingImage::ImageDimension, TVirtualImage >
FixedTransformPointer	m_FixedTransform

MovingTransformPointer	m_MovingTransform

SizeValueType	m_NumberOfValidPoints

bool	m_UserHasSetVirtualDomain

VirtualImagePointer	m_VirtualImage

Protected Attributes inherited from itk::ObjectToObjectMetricBase
GradientSourceType	m_GradientSource

MeasureType	m_Value

Private Member Functions
	ImageToImageMetricv4 (const Self &)

void	MapFixedSampledPointSetToVirtual (void)

void	operator= (const Self &)

Private Attributes
bool	m_ComputeDerivative

DerivativeValueType	m_FloatingPointCorrectionResolution

bool	m_HaveMadeGetValueWarning

MetricTraits	m_MetricTraits

SizeValueType	m_NumberOfSkippedFixedSampledPoints

bool	m_UseFloatingPointCorrection

Friends
class	ImageToImageMetricv4GetValueAndDerivativeThreader< ThreadedImageRegionPartitioner< VirtualImageDimension >, Self >

class	ImageToImageMetricv4GetValueAndDerivativeThreader< ThreadedIndexedContainerPartitioner, Self >

class	ImageToImageMetricv4GetValueAndDerivativeThreaderBase< ThreadedImageRegionPartitioner< VirtualImageDimension >, Self >

class	ImageToImageMetricv4GetValueAndDerivativeThreaderBase< ThreadedIndexedContainerPartitioner, Self >

typedef PixelTraits < FixedImagePixelType > ::ValueType	FixedImagePixelValueType

typedef PixelTraits < MovingImagePixelType > ::ValueType	MovingImagePixelValueType

	typedef (itk::Concept::IsFloatingPoint< FixedImagePixelValueType >) OnlyDefinedForFloatingPointTypes0

	typedef (itk::Concept::IsFloatingPoint< MovingImagePixelValueType >) OnlyDefinedForFloatingPointTypes1

Additional Inherited Members
Static Public Member Functions inherited from itk::Object
static bool	GetGlobalWarningDisplay ()

static void	GlobalWarningDisplayOff ()

static void	GlobalWarningDisplayOn ()

static Pointer	New ()

static void	SetGlobalWarningDisplay (bool flag)