ITK  4.9.0
Insight Segmentation and Registration Toolkit
Public Types | Public Member Functions | Static Public Member Functions | Static Public Attributes | Protected Member Functions | Private Member Functions | Private Attributes | List of all members
itk::CurvatureFlowFunction< TImage > Class Template Reference

#include <itkCurvatureFlowFunction.h>

+ Inheritance diagram for itk::CurvatureFlowFunction< TImage >:
+ Collaboration diagram for itk::CurvatureFlowFunction< TImage >:

Detailed Description

template<typename 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 SelfConstPointer
 
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< SelfPointer
 
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 SelfConstPointer
 
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< SelfPointer
 
typedef
ConstNeighborhoodIterator
< TImage >::RadiusType 
RadiusType
 
typedef FiniteDifferenceFunction Self
 
typedef LightObject Superclass
 
typedef double TimeStepType
 
- Public Types inherited from itk::LightObject
typedef SmartPointer< const SelfConstPointer
 
typedef SmartPointer< SelfPointer
 
typedef LightObject Self
 

Public Member Functions

virtual TimeStepType ComputeGlobalTimeStep (void *GlobalData) const override
 
virtual PixelType ComputeUpdate (const NeighborhoodType &neighborhood, void *globalData, const FloatOffsetType &offset=FloatOffsetType(0.0)) override
 
virtual ::itk::LightObject::Pointer CreateAnother () const
 
virtual void * GetGlobalDataPointer () const override
 
virtual const char * GetNameOfClass () const
 
const TimeStepTypeGetTimeStep () const
 
virtual void ReleaseGlobalDataPointer (void *GlobalData) const override
 
void SetTimeStep (const TimeStepType &t)
 
- Public Member Functions inherited from itk::FiniteDifferenceFunction< TImage >
const NeighborhoodScalesType ComputeNeighborhoodScales () const
 
const RadiusTypeGetRadius () 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 noexcept
 

Static Public Member Functions

static Pointer New ()
 
- Static Public Member Functions inherited from itk::LightObject
static void BreakOnError ()
 
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 ()
 
virtual void PrintSelf (std::ostream &os, Indent indent) const override
 
 ~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 &) ITK_DELETE_FUNCTION
 
void operator= (const Self &) ITK_DELETE_FUNCTION
 

Private Attributes

TimeStepType m_TimeStep
 

Additional Inherited Members

- Protected Attributes inherited from itk::FiniteDifferenceFunction< TImage >
RadiusType m_Radius
 
PixelRealType m_ScaleCoefficients [ImageDimension]
 
- Protected Attributes inherited from itk::LightObject
AtomicInt< int > m_ReferenceCount
 

Member Typedef Documentation

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

Definition at line 51 of file itkCurvatureFlowFunction.h.

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

Definition at line 68 of file itkCurvatureFlowFunction.h.

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

Inherit some parameters from the superclass type.

Definition at line 58 of file itkCurvatureFlowFunction.h.

Definition at line 67 of file itkCurvatureFlowFunction.h.

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

Definition at line 66 of file itkCurvatureFlowFunction.h.

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

Definition at line 65 of file itkCurvatureFlowFunction.h.

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

Definition at line 62 of file itkCurvatureFlowFunction.h.

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

Definition at line 50 of file itkCurvatureFlowFunction.h.

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

Definition at line 63 of file itkCurvatureFlowFunction.h.

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

Definition at line 64 of file itkCurvatureFlowFunction.h.

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

Standard class typedefs.

Definition at line 48 of file itkCurvatureFlowFunction.h.

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

Definition at line 49 of file itkCurvatureFlowFunction.h.

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

Definition at line 69 of file itkCurvatureFlowFunction.h.

Constructor & Destructor Documentation

template<typename TImage >
itk::CurvatureFlowFunction< TImage >::CurvatureFlowFunction ( )
protected
template<typename TImage >
itk::CurvatureFlowFunction< TImage >::~CurvatureFlowFunction ( )
inlineprotected

Definition at line 140 of file itkCurvatureFlowFunction.h.

template<typename TImage >
itk::CurvatureFlowFunction< TImage >::CurvatureFlowFunction ( const Self )
private

Member Function Documentation

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

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

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<typename TImage >
virtual::itk::LightObject::Pointer itk::CurvatureFlowFunction< TImage >::CreateAnother ( ) 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<typename TImage >
virtual void* itk::CurvatureFlowFunction< TImage >::GetGlobalDataPointer ( ) const
inlineoverridevirtual

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.

References itk::NumericTraits< T >::ZeroValue().

template<typename 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::MinMaxCurvatureFlowFunction< TImage >.

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

Get the time step parameter

Definition at line 111 of file itkCurvatureFlowFunction.h.

References itk::CurvatureFlowFunction< TImage >::m_TimeStep.

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

Method for creation through the object factory.

template<typename TImage >
void itk::CurvatureFlowFunction< TImage >::operator= ( const Self )
private
template<typename TImage >
virtual void itk::CurvatureFlowFunction< TImage >::ReleaseGlobalDataPointer ( void *  GlobalData) const
inlineoverridevirtual

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

Set the time step parameter

Definition at line 107 of file itkCurvatureFlowFunction.h.

References itk::CurvatureFlowFunction< TImage >::m_TimeStep.

Member Data Documentation

template<typename TImage >
const unsigned int itk::CurvatureFlowFunction< TImage >::ImageDimension = Superclass::ImageDimension
static

Extract superclass dimension.

Definition at line 72 of file itkCurvatureFlowFunction.h.

template<typename TImage >
TimeStepType itk::CurvatureFlowFunction< TImage >::m_TimeStep
private

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