itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage > Class Template Reference
[Transforms]

#include <itkCenteredTransformInitializer.h>

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

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

[legend]List of all members.

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Detailed Description

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

CenteredTransformInitializer is a helper class intended to initialize the center of rotation and the translation of Transforms having the center of rotation among their parameters.

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 center of the moving image is passed as initial center of rotation to the transform and the vector from the center of the fixed image to the center of the moving image is passed as the 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 center of mass of the moving image is then used as center of rotation. 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 itkCenteredTransformInitializer.h.

Public Types
typedef SmartPointer< const Self >	ConstPointer
typedef FixedImageCalculatorType::Pointer	FixedImageCalculatorPointer
typedef ImageMomentsCalculator< FixedImageType >	FixedImageCalculatorType
typedef FixedImageType::ConstPointer	FixedImagePointer
typedef TFixedImage	FixedImageType
typedef TransformType::InputPointType	InputPointType
typedef MovingImageCalculatorType::Pointer	MovingImageCalculatorPointer
typedef ImageMomentsCalculator< MovingImageType >	MovingImageCalculatorType
typedef MovingImageType::ConstPointer	MovingImagePointer
typedef TMovingImage	MovingImageType
typedef TransformType::OffsetType	OffsetType
typedef TransformType::OutputVectorType	OutputVectorType
typedef SmartPointer< Self >	Pointer
typedef CenteredTransformInitializer	Self
typedef Object	Superclass
typedef TransformType::Pointer	TransformPointer
typedef TTransform	TransformType
Public Member Functions
virtual LightObject::Pointer	CreateAnother () const
virtual void	DebugOff () const
virtual void	DebugOn () const
virtual void	Delete ()
	Get () access to the moments calculators */virtual const FixedImageCalculatorType *GetFixedCalculator()
Command *	GetCommand (unsigned long tag)
bool	GetDebug () const
const MetaDataDictionary &	GetMetaDataDictionary (void) const
MetaDataDictionary &	GetMetaDataDictionary (void)
virtual const MovingImageCalculatorType *	GetMovingCalculator ()
virtual unsigned long	GetMTime () const
virtual const char *	GetNameOfClass () const
virtual int	GetReferenceCount () const
bool	HasObserver (const EventObject &event) const
virtual void	InitializeTransform () const
void	InvokeEvent (const EventObject &) const
void	InvokeEvent (const EventObject &)
	itkStaticConstMacro (OutputSpaceDimension, unsigned int, TransformType::OutputSpaceDimension)
	itkStaticConstMacro (InputSpaceDimension, unsigned int, TransformType::InputSpaceDimension)
Dimension of parameters *	itkStaticConstMacro (SpaceDimension, unsigned int, TransformType::SpaceDimension)
virtual void	Modified () const
void	MomentsOn ()
void	Print (std::ostream &os, Indent indent=0) const
virtual void	Register () const
void	RemoveAllObservers ()
void	RemoveObserver (unsigned long tag)
void	SetDebug (bool debugFlag) const
virtual void	SetFixedImage (const FixedImageType *_arg)
void	SetMetaDataDictionary (const MetaDataDictionary &rhs)
virtual void	SetMovingImage (const MovingImageType *_arg)
virtual void	SetReferenceCount (int)
virtual void	SetTransform (TransformType *_arg)
virtual void	UnRegister () const
Static Public Member Functions
static void	BreakOnError ()
static bool	GetGlobalWarningDisplay ()
static void	GlobalWarningDisplayOff ()
static void	GlobalWarningDisplayOn ()
static Pointer	New ()
This is a global flag that controls whether any warning *or error messages are displayed *static void	SetGlobalWarningDisplay (bool flag)
Public Attributes
Allow people to add remove invoke observers(callbacks) to any ITK *object.This is an implementation of the subject/observer design *pattern.An observer is added by specifying an event to respond to *and an itk unsigned lon	AddObserver )(const EventObject &event, Command *) const
This is a global flag that controls whether any	debug
Protected Member Functions
	CenteredTransformInitializer ()
bool	PrintObservers (std::ostream &os, Indent indent) const
void	PrintSelf (std::ostream &os, Indent indent) const
virtual void	PrintTrailer (std::ostream &os, Indent indent) const
	~CenteredTransformInitializer ()
Protected Attributes
int	m_ReferenceCount
SimpleFastMutexLock	m_ReferenceCountLock
Methods invoked by virtual 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.*/virtual void PrintSelf(std voi	PrintHeader )(std::ostream &os, Indent indent) const

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Member Typedef Documentation

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

Reimplemented from itk::Object. Reimplemented in itk::CenteredVersorTransformInitializer< TFixedImage, TMovingImage >. Definition at line 70 of file itkCenteredTransformInitializer.h.

template<class TTransform, class TFixedImage, class TMovingImage> typedef FixedImageCalculatorType::Pointer itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::FixedImageCalculatorPointer

Definition at line 103 of file itkCenteredTransformInitializer.h.

template<class TTransform, class TFixedImage, class TMovingImage> typedef ImageMomentsCalculator< FixedImageType > itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::FixedImageCalculatorType

Moment calculators Definition at line 99 of file itkCenteredTransformInitializer.h.

template<class TTransform, class TFixedImage, class TMovingImage> typedef FixedImageType::ConstPointer itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::FixedImagePointer

Reimplemented in itk::CenteredVersorTransformInitializer< TFixedImage, TMovingImage >. Definition at line 95 of file itkCenteredTransformInitializer.h.

template<class TTransform, class TFixedImage, class TMovingImage> typedef TFixedImage itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::FixedImageType

Image Types to use in the initialization of the transform Reimplemented in itk::CenteredVersorTransformInitializer< TFixedImage, TMovingImage >. Definition at line 92 of file itkCenteredTransformInitializer.h.

template<class TTransform, class TFixedImage, class TMovingImage> typedef TransformType::InputPointType itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::InputPointType

Point type. Reimplemented in itk::CenteredVersorTransformInitializer< TFixedImage, TMovingImage >. Definition at line 112 of file itkCenteredTransformInitializer.h.

template<class TTransform, class TFixedImage, class TMovingImage> typedef MovingImageCalculatorType::Pointer itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::MovingImageCalculatorPointer

Definition at line 105 of file itkCenteredTransformInitializer.h.

template<class TTransform, class TFixedImage, class TMovingImage> typedef ImageMomentsCalculator< MovingImageType > itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::MovingImageCalculatorType

Definition at line 100 of file itkCenteredTransformInitializer.h.

template<class TTransform, class TFixedImage, class TMovingImage> typedef MovingImageType::ConstPointer itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::MovingImagePointer

Reimplemented in itk::CenteredVersorTransformInitializer< TFixedImage, TMovingImage >. Definition at line 96 of file itkCenteredTransformInitializer.h.

template<class TTransform, class TFixedImage, class TMovingImage> typedef TMovingImage itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::MovingImageType

Reimplemented in itk::CenteredVersorTransformInitializer< TFixedImage, TMovingImage >. Definition at line 93 of file itkCenteredTransformInitializer.h.

template<class TTransform, class TFixedImage, class TMovingImage> typedef TransformType::OffsetType itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::OffsetType

Offset type. Reimplemented in itk::CenteredVersorTransformInitializer< TFixedImage, TMovingImage >. Definition at line 109 of file itkCenteredTransformInitializer.h.

template<class TTransform, class TFixedImage, class TMovingImage> typedef TransformType::OutputVectorType itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::OutputVectorType

Vector type. Reimplemented in itk::CenteredVersorTransformInitializer< TFixedImage, TMovingImage >. Definition at line 115 of file itkCenteredTransformInitializer.h.

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

Reimplemented from itk::Object. Reimplemented in itk::CenteredVersorTransformInitializer< TFixedImage, TMovingImage >. Definition at line 69 of file itkCenteredTransformInitializer.h.

template<class TTransform, class TFixedImage, class TMovingImage> typedef CenteredTransformInitializer itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::Self

Standard class typedefs. Reimplemented from itk::Object. Reimplemented in itk::CenteredVersorTransformInitializer< TFixedImage, TMovingImage >. Definition at line 67 of file itkCenteredTransformInitializer.h.

template<class TTransform, class TFixedImage, class TMovingImage> typedef Object itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::Superclass

Reimplemented from itk::Object. Reimplemented in itk::CenteredVersorTransformInitializer< TFixedImage, TMovingImage >. Definition at line 68 of file itkCenteredTransformInitializer.h.

template<class TTransform, class TFixedImage, class TMovingImage> typedef TransformType::Pointer itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::TransformPointer

Reimplemented in itk::CenteredVersorTransformInitializer< TFixedImage, TMovingImage >. Definition at line 80 of file itkCenteredTransformInitializer.h.

template<class TTransform, class TFixedImage, class TMovingImage> typedef TTransform itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::TransformType

Type of the transform to initialize Reimplemented in itk::CenteredVersorTransformInitializer< TFixedImage, TMovingImage >. Definition at line 76 of file itkCenteredTransformInitializer.h.

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Constructor & Destructor Documentation

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

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

Definition at line 143 of file itkCenteredTransformInitializer.h.

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Member Function Documentation

static void itk::LightObject::BreakOnError (   )  [static, inherited]

This method is called when itkExceptionMacro executes. It allows the debugger to break on error.

virtual LightObject::Pointer itk::Object::CreateAnother (   )  const [virtual, inherited]

Create an object from an instance, potentially deferring to a factory. This method allows you to create an instance of an object that is exactly the same type as the referring object. This is useful in cases where an object has been cast back to a base class. Reimplemented from itk::LightObject.

virtual void itk::Object::DebugOff (   )  const [virtual, inherited]

Turn debugging output off.

virtual void itk::Object::DebugOn (   )  const [virtual, inherited]

Turn debugging output on.

virtual void itk::LightObject::Delete (   )  [virtual, inherited]

Delete an itk object. This method should always be used to delete an object when the new operator was used to create it. Using the C delete method will not work with reference counting.

template<class TTransform, class TFixedImage, class TMovingImage> itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::Get (   )  const

Command* itk::Object::GetCommand (  unsigned long  tag  )  [inherited]

Get the command associated with the given tag. NOTE: This returns a pointer to a Command, but it is safe to asign this to a Command::Pointer. Since Command inherits from LightObject, at this point in the code, only a pointer or a reference to the Command can be used.

bool itk::Object::GetDebug (   )  const [inherited]

Get the value of the debug flag.

static bool itk::Object::GetGlobalWarningDisplay (   )  [static, inherited]

const MetaDataDictionary& itk::Object::GetMetaDataDictionary (  void   )  const [inherited]

Returns: A constant reference to this objects MetaDataDictionary.

MetaDataDictionary& itk::Object::GetMetaDataDictionary (  void   )  [inherited]

Returns: A reference to this objects MetaDataDictionary. Warning: This reference may be changed.

template<class TTransform, class TFixedImage, class TMovingImage> virtual const MovingImageCalculatorType* itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::GetMovingCalculator (   )  [virtual]

virtual unsigned long itk::Object::GetMTime (   )  const [virtual, inherited]

Return this objects modified time. Reimplemented in itk::ImageRegistrationMethod< TFixedImage, TMovingImage >, itk::DeformationFieldSource< TOutputImage >, itk::InverseDeformationFieldImageFilter< TInputImage, TOutputImage >, itk::ResampleImageFilter< TInputImage, TOutputImage, TInterpolatorPrecisionType >, itk::VectorResampleImageFilter< TInputImage, TOutputImage, TInterpolatorPrecisionType >, itk::BoundingBox< TPointIdentifier, VPointDimension, TCoordRep, TPointsContainer >, itk::SceneSpatialObject< SpaceDimension >, and itk::SceneSpatialObject< NDimensions >.

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

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

virtual int itk::LightObject::GetReferenceCount (   )  const [inline, virtual, inherited]

Gets the reference count on this object. Definition at line 98 of file itkLightObject.h.

static void itk::Object::GlobalWarningDisplayOff (   )  [inline, static, inherited]

Definition at line 100 of file itkObject.h. References itk::Object::SetGlobalWarningDisplay().

static void itk::Object::GlobalWarningDisplayOn (   )  [inline, static, inherited]

Definition at line 98 of file itkObject.h. References itk::Object::SetGlobalWarningDisplay().

bool itk::Object::HasObserver (  const EventObject &  event  )  const [inherited]

Return true if an observer is registered for this event.

template<class TTransform, class TFixedImage, class TMovingImage> virtual void itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::InitializeTransform (   )  const [virtual]

Initialize the transform using data from the images Reimplemented in itk::CenteredVersorTransformInitializer< TFixedImage, TMovingImage >.

void itk::Object::InvokeEvent (  const EventObject &   )  const [inherited]

Call Execute on all the Commands observing this event id. The actions triggered by this call doesn't modify this object.

void itk::Object::InvokeEvent (  const EventObject &   )  [inherited]

Call Execute on all the Commands observing this event id.

template<class TTransform, class TFixedImage, class TMovingImage> itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::itkStaticConstMacro (  OutputSpaceDimension  , unsigned  int, TransformType::OutputSpaceDimension  )

template<class TTransform, class TFixedImage, class TMovingImage> itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::itkStaticConstMacro (  InputSpaceDimension  , unsigned  int, TransformType::InputSpaceDimension  )

template<class TTransform, class TFixedImage, class TMovingImage> Dimension of parameters* itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::itkStaticConstMacro (  SpaceDimension  , unsigned  int, TransformType::SpaceDimension  )

virtual void itk::Object::Modified (   )  const [virtual, inherited]

Update the modification time for this object. Many filters rely on the modification time to determine if they need to recompute their data. Referenced by itk::MatrixOffsetTransformBase< TScalarType, 3, 3 >::SetCenter(), itk::HistogramAlgorithmBase< TInputHistogram >::SetInputHistogram(), itk::MatrixOffsetTransformBase< TScalarType, 3, 3 >::SetMatrix(), itk::MatrixOffsetTransformBase< TScalarType, 3, 3 >::SetOffset(), itk::ThresholdLabelerImageFilter< TInputImage, TOutputImage >::SetRealThresholds(), itk::CollidingFrontsImageFilter< TInputImage, TOutputImage >::SetSeedPoints1(), itk::CollidingFrontsImageFilter< TInputImage, TOutputImage >::SetSeedPoints2(), itk::NonUniformBSpline< TDimension >::SetSplineOrder(), itk::ThresholdLabelerImageFilter< TInputImage, TOutputImage >::SetThresholds(), itk::Statistics::GoodnessOfFitFunctionBase< typename ComponentType::HistogramType >::SetTotalObservedScale(), and itk::MatrixOffsetTransformBase< TScalarType, 3, 3 >::SetTranslation().

template<class TTransform, class TFixedImage, class TMovingImage> void itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::MomentsOn (   )  [inline]

Definition at line 133 of file itkCenteredTransformInitializer.h.

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

New macro for creation of through a Smart Pointer. Reimplemented from itk::Object. Reimplemented in itk::CenteredVersorTransformInitializer< TFixedImage, TMovingImage >.

void itk::LightObject::Print (  std::ostream &  os, Indent  indent = 0 )  const [inherited]

Cause the object to print itself out.

bool itk::Object::PrintObservers (  std::ostream &  os, Indent  indent )  const [protected, inherited]

template<class TTransform, class TFixedImage, class TMovingImage> void itk::CenteredTransformInitializer< TTransform, 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::Object. Reimplemented in itk::CenteredVersorTransformInitializer< TFixedImage, TMovingImage >.

virtual void itk::LightObject::PrintTrailer (  std::ostream &  os, Indent  indent )  const [protected, virtual, inherited]

virtual void itk::Object::Register (   )  const [virtual, inherited]

Increase the reference count (mark as used by another object). Reimplemented from itk::LightObject.

void itk::Object::RemoveAllObservers (   )  [inherited]

Remove all observers .

void itk::Object::RemoveObserver (  unsigned long  tag  )  [inherited]

Remove the observer with this tag value.

void itk::Object::SetDebug (  bool  debugFlag  )  const [inherited]

Set the value of the debug flag. A non-zero value turns debugging on.

template<class TTransform, class TFixedImage, class TMovingImage> virtual void itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::SetFixedImage (  const FixedImageType *  _arg  )  [virtual]

Set the fixed image used in the registration process

This is a global flag that controls whether any warning* or error messages are displayed* static void itk::Object::SetGlobalWarningDisplay (  bool  flag  )  [static, inherited]

Referenced by itk::Object::GlobalWarningDisplayOff(), and itk::Object::GlobalWarningDisplayOn().

void itk::Object::SetMetaDataDictionary (  const MetaDataDictionary &  rhs  )  [inherited]

Returns: Set the MetaDataDictionary

template<class TTransform, class TFixedImage, class TMovingImage> virtual void itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::SetMovingImage (  const MovingImageType *  _arg  )  [virtual]

Set the moving image used in the registration process

virtual void itk::Object::SetReferenceCount (  int   )  [virtual, inherited]

Sets the reference count (use with care) Reimplemented from itk::LightObject.

template<class TTransform, class TFixedImage, class TMovingImage> virtual void itk::CenteredTransformInitializer< TTransform, TFixedImage, TMovingImage >::SetTransform (  TransformType *  _arg  )  [virtual]

Set the transform to be initialized

virtual void itk::Object::UnRegister (   )  const [virtual, inherited]

Decrease the reference count (release by another object). Reimplemented from itk::LightObject.

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Member Data Documentation

Allow people to add remove invoke observers (callbacks) to any ITK * object. This is an implementation of the subject/observer design * pattern. An observer is added by specifying an event to respond to * and an itk unsigned lon itk::Object::AddObserver)(const EventObject &event, Command *) const [inherited]

This is a global flag that controls whether any itk::Object::debug [inherited]

Definition at line 94 of file itkObject.h.

int itk::LightObject::m_ReferenceCount [mutable, protected, inherited]

Number of uses of this object by other objects. Definition at line 119 of file itkLightObject.h.

SimpleFastMutexLock itk::LightObject::m_ReferenceCountLock [mutable, protected, inherited]

Mutex lock to protect modification to the reference count Definition at line 122 of file itkLightObject.h.

Methods invoked by virtual 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. */ virtual void PrintSelf(std voi itk::LightObject::PrintHeader)(std::ostream &os, Indent indent) const [protected, inherited]

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

• itkCenteredTransformInitializer.h

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