#include <itkTranslationTransformInitializer.h>

Detailed Description

template<class TTransform, class TFixedImage, class TMovingImage>
class itk::TranslationTransformInitializer< TTransform, TFixedImage, TMovingImage >

TranslationTransformInitializer is a helper class intended to initialize the translation of a TranslationTransforms.

This class is connected to the fixed image, moving image and transform involved in the registration. Two modes of operation are possible:

Geometrical,
Center of mass

In the first mode, the geometrical centers of the images are computed. The distance between them is set as an initial translation. This mode basically assumes that the anatomical objects to be registered are centered in their respective images. Hence the best initial guess for the registration is the one that superimposes those two centers.

In the second mode, the moments of gray level values are computed for both images. The vector between the two centers of mass is passes as the initial translation to the transform. This second approach assumes that the moments of the anatomical objects are similar for both images and hence the best initial guess for registration is to superimpose both mass centers. Note that this assumption will probably not hold in multi-modality registration.

Definition at line 63 of file itkTranslationTransformInitializer.h.

Inheritance diagram for itk::TranslationTransformInitializer< TTransform, TFixedImage, TMovingImage >:

Public Types
typedef SmartPointer< const Self >	ConstPointer

typedef FixedImageCalculatorType::Pointer	FixedImageCalculatorPointer

typedef ImageMomentsCalculator< FixedImageType >	FixedImageCalculatorType

typedef FixedImageType::ConstPointer	FixedImagePointer

typedef TFixedImage	FixedImageType

typedef FixedMaskType::ConstPointer	FixedMaskPointer

typedef Image< unsigned char, InputSpaceDimension >	FixedMaskType

typedef TransformType::InputPointType	InputPointType

typedef MovingImageCalculatorType::Pointer	MovingImageCalculatorPointer

typedef ImageMomentsCalculator< MovingImageType >	MovingImageCalculatorType

typedef MovingImageType::ConstPointer	MovingImagePointer

typedef TMovingImage	MovingImageType

typedef MovingMaskType::ConstPointer	MovingMaskPointer

typedef Image< unsigned char, OutputSpaceDimension >	MovingMaskType

typedef TransformType::OutputVectorType	OutputVectorType

typedef SmartPointer< Self >	Pointer

typedef TranslationTransformInitializer	Self

typedef Object	Superclass

typedef TransformType::Pointer	TransformPointer

typedef TTransform	TransformType

Public Member Functions
void	GeometryOn ()

virtual const char *	GetClassName () const

virtual const FixedImageCalculatorType *	GetFixedCalculator ()

virtual const MovingImageCalculatorType *	GetMovingCalculator ()

virtual void	InitializeTransform () const

	itkStaticConstMacro (InputSpaceDimension, unsigned int, TransformType::InputSpaceDimension)

	itkStaticConstMacro (OutputSpaceDimension, unsigned int, TransformType::OutputSpaceDimension)

	itkStaticConstMacro (SpaceDimension, unsigned int, TransformType::SpaceDimension)

void	MomentsOn ()

virtual void	SetFixedImage (const FixedImageType *_arg)

virtual void	SetFixedMask (const FixedMaskType *_arg)

virtual void	SetMovingImage (const MovingImageType *_arg)

virtual void	SetMovingMask (const MovingMaskType *_arg)

virtual void	SetTransform (TransformType *_arg)

Static Public Member Functions
static Pointer	New ()

Protected Member Functions
void	PrintSelf (std::ostream &os, Indent indent) const override

	TranslationTransformInitializer ()

	~TranslationTransformInitializer () override

Private Member Functions
void	operator= (const Self &)

	TranslationTransformInitializer (const Self &)

Private Attributes
FixedImageCalculatorPointer	m_FixedCalculator

FixedImagePointer	m_FixedImage

FixedMaskPointer	m_FixedMask

MovingImageCalculatorPointer	m_MovingCalculator

MovingImagePointer	m_MovingImage

MovingMaskPointer	m_MovingMask

TransformPointer	m_Transform

bool	m_UseMoments