#include <itkCurvatureFlowFunction.h>

Inheritance diagram for itk::CurvatureFlowFunction< TImage >:

Collaboration diagram for itk::CurvatureFlowFunction< TImage >:

Detailed Description

template<class TImage>
class itk::CurvatureFlowFunction< TImage >

This class encapsulate the finite difference equation which drives a curvature flow denoising algorithm.

This class uses a zero flux Neumann boundary condition when computing derivatives near the data boundary.

This class operates as part of the finite difference solver hierarchy.

See Also: CurvatureFlowImageFilter; ZeroFluxNeumannBoundaryCondition

Definition at line 43 of file itkCurvatureFlowFunction.h.

Public Types
typedef SmartPointer< const Self >	ConstPointer

typedef Superclass::FloatOffsetType	FloatOffsetType

typedef Superclass::ImageType	ImageType

typedef Superclass::NeighborhoodScalesType	NeighborhoodScalesType

typedef Superclass::NeighborhoodType	NeighborhoodType

typedef Superclass::PixelRealType	PixelRealType

typedef Superclass::PixelType	PixelType

typedef SmartPointer< Self >	Pointer

typedef Superclass::RadiusType	RadiusType

typedef PixelType	ScalarValueType

typedef CurvatureFlowFunction	Self

typedef FiniteDifferenceFunction < TImage >	Superclass

typedef Superclass::TimeStepType	TimeStepType

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

typedef ZeroFluxNeumannBoundaryCondition < ImageType >	DefaultBoundaryConditionType

typedef Vector< float, itkGetStaticConstMacro(ImageDimension) >	FloatOffsetType

typedef TImage	ImageType

typedef Vector< PixelRealType, itkGetStaticConstMacro(ImageDimension) >	NeighborhoodScalesType

typedef ConstNeighborhoodIterator < TImage, DefaultBoundaryConditionType >	NeighborhoodType

typedef double	PixelRealType

typedef ImageType::PixelType	PixelType

typedef SmartPointer< Self >	Pointer

typedef ConstNeighborhoodIterator < TImage >::RadiusType	RadiusType

typedef FiniteDifferenceFunction	Self

typedef LightObject	Superclass

typedef double	TimeStepType

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

typedef SmartPointer< Self >	Pointer

typedef LightObject	Self

Public Member Functions
virtual TimeStepType	ComputeGlobalTimeStep (void *GlobalData) const

virtual PixelType	ComputeUpdate (const NeighborhoodType &neighborhood, void *globalData, const FloatOffsetType &offset=FloatOffsetType(0.0))

virtual ::itk::LightObject::Pointer	CreateAnother (void) const

virtual void *	GetGlobalDataPointer () const

virtual const char *	GetNameOfClass () const

const TimeStepType &	GetTimeStep () const

virtual void	ReleaseGlobalDataPointer (void *GlobalData) const

void	SetTimeStep (const TimeStepType &t)

Public Member Functions inherited from itk::FiniteDifferenceFunction< TImage >
const NeighborhoodScalesType	ComputeNeighborhoodScales () const

const RadiusType &	GetRadius () const

void	GetScaleCoefficients (PixelRealType vals[ImageDimension]) const

virtual void	InitializeIteration ()

void	SetRadius (const RadiusType &r)

void	SetScaleCoefficients (PixelRealType vals[ImageDimension])

Public Member Functions inherited from itk::LightObject
virtual void	Delete ()

virtual int	GetReferenceCount () const

	itkCloneMacro (Self)

void	Print (std::ostream &os, Indent indent=0) const

virtual void	Register () const

virtual void	SetReferenceCount (int)

virtual void	UnRegister () const

Static Public Member Functions
static Pointer	New ()

Static Public Attributes
static const unsigned int	ImageDimension = Superclass::ImageDimension

Static Public Attributes inherited from itk::FiniteDifferenceFunction< TImage >
static const unsigned int	ImageDimension

Protected Member Functions
	CurvatureFlowFunction ()

	~CurvatureFlowFunction ()

Protected Member Functions inherited from itk::FiniteDifferenceFunction< TImage >
	FiniteDifferenceFunction ()

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

	~FiniteDifferenceFunction ()

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 ()

Private Member Functions
	CurvatureFlowFunction (const Self &)

void	operator= (const Self &)

Private Attributes
TimeStepType	m_TimeStep

Additional Inherited Members
Protected Types inherited from itk::LightObject
typedef int	InternalReferenceCountType

Protected Attributes inherited from itk::FiniteDifferenceFunction< TImage >
RadiusType	m_Radius

PixelRealType	m_ScaleCoefficients [ImageDimension]

Member Typedef Documentation

template<class TImage >

typedef SmartPointer< const Self > itk::CurvatureFlowFunction< TImage >::ConstPointer

Definition at line 51 of file itkCurvatureFlowFunction.h.

template<class TImage >

typedef Superclass::FloatOffsetType itk::CurvatureFlowFunction< TImage >::FloatOffsetType

Definition at line 68 of file itkCurvatureFlowFunction.h.

template<class TImage >

typedef Superclass::ImageType itk::CurvatureFlowFunction< TImage >::ImageType

Inherit some parameters from the superclass type.

Definition at line 58 of file itkCurvatureFlowFunction.h.

template<class TImage >

typedef Superclass::NeighborhoodScalesType itk::CurvatureFlowFunction< TImage >::NeighborhoodScalesType

Definition at line 67 of file itkCurvatureFlowFunction.h.

template<class TImage >

typedef Superclass::NeighborhoodType itk::CurvatureFlowFunction< TImage >::NeighborhoodType

Definition at line 66 of file itkCurvatureFlowFunction.h.

template<class TImage >

typedef Superclass::PixelRealType itk::CurvatureFlowFunction< TImage >::PixelRealType

Definition at line 65 of file itkCurvatureFlowFunction.h.

template<class TImage >

typedef Superclass::PixelType itk::CurvatureFlowFunction< TImage >::PixelType

Definition at line 62 of file itkCurvatureFlowFunction.h.

template<class TImage >

typedef SmartPointer< Self > itk::CurvatureFlowFunction< TImage >::Pointer

Definition at line 50 of file itkCurvatureFlowFunction.h.

template<class TImage >

typedef Superclass::RadiusType itk::CurvatureFlowFunction< TImage >::RadiusType

Definition at line 63 of file itkCurvatureFlowFunction.h.

template<class TImage >

typedef PixelType itk::CurvatureFlowFunction< TImage >::ScalarValueType

Definition at line 64 of file itkCurvatureFlowFunction.h.

template<class TImage >

typedef CurvatureFlowFunction itk::CurvatureFlowFunction< TImage >::Self

Standard class typedefs.

Definition at line 48 of file itkCurvatureFlowFunction.h.

template<class TImage >

typedef FiniteDifferenceFunction< TImage > itk::CurvatureFlowFunction< TImage >::Superclass

Definition at line 49 of file itkCurvatureFlowFunction.h.

template<class TImage >

typedef Superclass::TimeStepType itk::CurvatureFlowFunction< TImage >::TimeStepType

Definition at line 69 of file itkCurvatureFlowFunction.h.

Constructor & Destructor Documentation

template<class TImage >

itk::CurvatureFlowFunction< TImage >::CurvatureFlowFunction ( )

protected

template<class TImage >

itk::CurvatureFlowFunction< TImage >::~CurvatureFlowFunction ( )

inlineprotected

Definition at line 140 of file itkCurvatureFlowFunction.h.

template<class TImage >

itk::CurvatureFlowFunction< TImage >::CurvatureFlowFunction ( const Self & )

private

Member Function Documentation

template<class TImage >

virtual TimeStepType itk::CurvatureFlowFunction< TImage >::ComputeGlobalTimeStep ( void * GlobalData ) const

virtual

Computes the time step for an update given a global data structure. The data used in the computation may take different forms depending on the nature of the equations. This global data cannot be kept in the instance of the equation object itself since the equation object must remain stateless for thread safety. The global data is therefore managed for each thread by the finite difference solver filters.

Currently, this function returns the user specified constant time step.

Todo:: compute timestep based on CFL condition.

Implements itk::FiniteDifferenceFunction< TImage >.

template<class TImage >

virtual PixelType itk::CurvatureFlowFunction< TImage >::ComputeUpdate	(	const NeighborhoodType &	neighborhood,
		void *	globalData,
		const FloatOffsetType &	offset = `FloatOffsetType(0.0)`
	)

virtual

This method computes the solution update for each pixel that does not lie on a the data set boundary.

Implements itk::FiniteDifferenceFunction< TImage >.

Reimplemented in itk::MinMaxCurvatureFlowFunction< TImage >, and itk::BinaryMinMaxCurvatureFlowFunction< TImage >.

template<class TImage >

virtual::itk::LightObject::Pointer itk::CurvatureFlowFunction< TImage >::CreateAnother ( void ) const

virtual

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.

Reimplemented in itk::MinMaxCurvatureFlowFunction< TImage >.

template<class TImage >

virtual void* itk::CurvatureFlowFunction< TImage >::GetGlobalDataPointer ( ) const

inlinevirtual

Returns a pointer to a global data structure that is passed to this object from the solver at each calculation. The idea is that the solver holds the state of any global values needed to calculate the time step, while the equation object performs the actual calculations. The global data should also be initialized in this method.

Implements itk::FiniteDifferenceFunction< TImage >.

Definition at line 91 of file itkCurvatureFlowFunction.h.

template<class TImage >

virtual const char* itk::CurvatureFlowFunction< TImage >::GetNameOfClass ( ) const

virtual

Run-time type information (and related methods)

Reimplemented from itk::FiniteDifferenceFunction< TImage >.

Reimplemented in itk::BinaryMinMaxCurvatureFlowFunction< TImage >, and itk::MinMaxCurvatureFlowFunction< TImage >.

template<class TImage >

const TimeStepType& itk::CurvatureFlowFunction< TImage >::GetTimeStep ( ) const

inline

Get the time step parameter

Definition at line 111 of file itkCurvatureFlowFunction.h.

template<class TImage >

static Pointer itk::CurvatureFlowFunction< TImage >::New ( )

static

Method for creation through the object factory.

template<class TImage >

void itk::CurvatureFlowFunction< TImage >::operator= ( const Self & )

private

template<class TImage >

virtual void itk::CurvatureFlowFunction< TImage >::ReleaseGlobalDataPointer ( void * GlobalData ) const

inlinevirtual

When the finite difference solver filter has finished using a global data pointer, it passes it to this method, which frees the memory. The solver cannot free the memory because it does not know the type to which the pointer points.

Implements itk::FiniteDifferenceFunction< TImage >.

Definition at line 103 of file itkCurvatureFlowFunction.h.

template<class TImage >

void itk::CurvatureFlowFunction< TImage >::SetTimeStep ( const TimeStepType & t )

inline

Set the time step parameter

Definition at line 107 of file itkCurvatureFlowFunction.h.