itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType > Class Template Reference

This function is used in ThresholdSegmentationLevelSetImageFilter to segment structures in images based on intensity values. More...

#include <itkThresholdSegmentationLevelSetFunction.h>

Inheritance diagram for itk::ThresholdSegmentationLevelSetFunction:

[legend]Collaboration diagram for itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >:

[legend]List of all members.

Public Types
typedef ThresholdSegmentationLevelSetFunction	Self
typedef SegmentationLevelSetFunction< TImageType >	Superclass
typedef SmartPointer< Self >	Pointer
typedef SmartPointer< const Self >	ConstPointer
typedef TFeatureImageType	FeatureImageType
typedef Superclass::ImageType	ImageType
typedef Superclass::ScalarValueType	ScalarValueType
typedef Superclass::FeatureScalarType	FeatureScalarType
typedef Superclass::RadiusType	RadiusType
Public Methods
virtual const char *	GetClassName () const
	itkStaticConstMacro (ImageDimension, unsigned int, Superclass::ImageDimension)
virtual void	CalculateSpeedImage ()
virtual void	Initialize (const RadiusType &r)
void	SetUpperThreshold (FeatureScalarType f)
FeatureScalarType	GetUpperThreshold () const
void	SetLowerThreshold (FeatureScalarType f)
FeatureScalarType	GetLowerThreshold () const
Static Public Methods
Pointer	New ()
Protected Methods
	ThresholdSegmentationLevelSetFunction ()
virtual	~ThresholdSegmentationLevelSetFunction ()
	ThresholdSegmentationLevelSetFunction (const Self &)
void	operator= (const Self &)
void	PrintSelf (std::ostream &os, Indent indent) const
Protected Attributes
FeatureScalarType	m_UpperThreshold
FeatureScalarType	m_LowerThreshold

---

Detailed Description

template<class TImageType, class TFeatureImageType = TImageType>
class itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >

This function is used in ThresholdSegmentationLevelSetImageFilter to segment structures in images based on intensity values.

SegmentationLevelSetFunction is a subclass of the generic LevelSetFunction.

It useful for segmentations based on intensity values in an image. It works by constructing a speed term (feature image) with positive values inside an intensity window (between a low and high threshold) and negative values outside that intensity window. The evolving level set front will lock onto regions that are at the edges of the intensity window.

Image $f$ is thresholded pixel by pixel using upper threshold $U$ and lower threshold $L$ according to the following formula.

See also:

SegmentationLevelSetImageFunction , ThresholdSegmentationLevelSetImageFilter

Definition at line 46 of file itkThresholdSegmentationLevelSetFunction.h.

---

Member Typedef Documentation

template<class TImageType, class TFeatureImageType = TImageType> typedef SmartPointer<const Self> itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::ConstPointer

Reimplemented from itk::SegmentationLevelSetFunction< TImageType, TFeatureImageType >. Definition at line 54 of file itkThresholdSegmentationLevelSetFunction.h.

template<class TImageType, class TFeatureImageType = TImageType> typedef TFeatureImageType itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::FeatureImageType

Reimplemented from itk::SegmentationLevelSetFunction< TImageType, TFeatureImageType >. Definition at line 55 of file itkThresholdSegmentationLevelSetFunction.h.

template<class TImageType, class TFeatureImageType = TImageType> typedef Superclass::FeatureScalarType itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::FeatureScalarType

Reimplemented from itk::SegmentationLevelSetFunction< TImageType, TFeatureImageType >. Definition at line 66 of file itkThresholdSegmentationLevelSetFunction.h.

template<class TImageType, class TFeatureImageType = TImageType> typedef Superclass::ImageType itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::ImageType

Extract some parameters from the superclass. Reimplemented from itk::SegmentationLevelSetFunction< TImageType, TFeatureImageType >. Definition at line 64 of file itkThresholdSegmentationLevelSetFunction.h.

template<class TImageType, class TFeatureImageType = TImageType> typedef SmartPointer<Self> itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::Pointer

Reimplemented from itk::SegmentationLevelSetFunction< TImageType, TFeatureImageType >. Definition at line 53 of file itkThresholdSegmentationLevelSetFunction.h.

template<class TImageType, class TFeatureImageType = TImageType> typedef Superclass::RadiusType itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::RadiusType

Neighborhood radius type Reimplemented from itk::SegmentationLevelSetFunction< TImageType, TFeatureImageType >. Definition at line 67 of file itkThresholdSegmentationLevelSetFunction.h.

template<class TImageType, class TFeatureImageType = TImageType> typedef Superclass::ScalarValueType itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::ScalarValueType

Reimplemented from itk::SegmentationLevelSetFunction< TImageType, TFeatureImageType >. Definition at line 65 of file itkThresholdSegmentationLevelSetFunction.h.

template<class TImageType, class TFeatureImageType = TImageType> typedef ThresholdSegmentationLevelSetFunction itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::Self

Standard class typedefs. Reimplemented from itk::SegmentationLevelSetFunction< TImageType, TFeatureImageType >. Definition at line 51 of file itkThresholdSegmentationLevelSetFunction.h.

template<class TImageType, class TFeatureImageType = TImageType> typedef SegmentationLevelSetFunction<TImageType> itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::Superclass

Reimplemented from itk::SegmentationLevelSetFunction< TImageType, TFeatureImageType >. Definition at line 52 of file itkThresholdSegmentationLevelSetFunction.h.

---

Constructor & Destructor Documentation

template<class TImageType, class TFeatureImageType = TImageType> itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::ThresholdSegmentationLevelSetFunction (    )  [inline, protected]

Definition at line 96 of file itkThresholdSegmentationLevelSetFunction.h.

template<class TImageType, class TFeatureImageType = TImageType> virtual itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::~ThresholdSegmentationLevelSetFunction (    )  [inline, protected, virtual]

Definition at line 97 of file itkThresholdSegmentationLevelSetFunction.h. References HardConnectedComponentImageFilter::PrintSelf().

template<class TImageType, class TFeatureImageType = TImageType> itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::ThresholdSegmentationLevelSetFunction (  const Self &    )  [protected]

---

Member Function Documentation

template<class TImageType, class TFeatureImageType = TImageType> virtual void itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::CalculateSpeedImage (    )  [virtual]

This method must be defined in a subclass to implement a working function object. This method is called before the solver begins its work to produce the speed image used as the level set function's Propagation speed term. See LevelSetFunction for more information. Implements itk::SegmentationLevelSetFunction< TImageType, TFeatureImageType >.

template<class TImageType, class TFeatureImageType = TImageType> virtual const char* itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::GetClassName (    )  const [virtual]

Run-time type information (and related methods) Reimplemented from itk::SegmentationLevelSetFunction< TImageType, TFeatureImageType >.

template<class TImageType, class TFeatureImageType = TImageType> FeatureScalarType itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::GetLowerThreshold (    )  const [inline]

Set/Get threshold values Definition at line 80 of file itkThresholdSegmentationLevelSetFunction.h.

template<class TImageType, class TFeatureImageType = TImageType> FeatureScalarType itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::GetUpperThreshold (    )  const [inline]

Set/Get threshold values Definition at line 76 of file itkThresholdSegmentationLevelSetFunction.h.

template<class TImageType, class TFeatureImageType = TImageType> virtual void itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::Initialize (  const RadiusType &    r )  [inline, virtual]

This method creates the appropriate member variable operators for the level-set calculations. The argument to this function is a the radius necessary for performing the level-set calculations. Reimplemented from itk::SegmentationLevelSetFunction< TImageType, TFeatureImageType >. Definition at line 86 of file itkThresholdSegmentationLevelSetFunction.h.

template<class TImageType, class TFeatureImageType = TImageType> itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::itkStaticConstMacro (  ImageDimension   , unsigned    int, Superclass::ImageDimension    )

Extract some parameters from the superclass. Reimplemented from itk::SegmentationLevelSetFunction< TImageType, TFeatureImageType >.

template<class TImageType, class TFeatureImageType = TImageType> Pointer itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::New (    )  [static]

Method for creation through the object factory. Reimplemented from itk::LevelSetFunction< TImageType >.

template<class TImageType, class TFeatureImageType = TImageType> void itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::operator= (  const Self &    )  [protected]

Reimplemented from itk::LevelSetFunction< TImageType >.

template<class TImageType, class TFeatureImageType = TImageType> void itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::PrintSelf (  std::ostream &    os, Indent    indent )  const [inline, 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::LevelSetFunction< TImageType >. Definition at line 102 of file itkThresholdSegmentationLevelSetFunction.h.

template<class TImageType, class TFeatureImageType = TImageType> void itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::SetLowerThreshold (  FeatureScalarType    f )  [inline]

Set/Get threshold values Definition at line 78 of file itkThresholdSegmentationLevelSetFunction.h.

template<class TImageType, class TFeatureImageType = TImageType> void itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::SetUpperThreshold (  FeatureScalarType    f )  [inline]

Set/Get threshold values Definition at line 74 of file itkThresholdSegmentationLevelSetFunction.h.

---

Member Data Documentation

template<class TImageType, class TFeatureImageType = TImageType> FeatureScalarType itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::m_LowerThreshold [protected]

Definition at line 110 of file itkThresholdSegmentationLevelSetFunction.h.

template<class TImageType, class TFeatureImageType = TImageType> FeatureScalarType itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::m_UpperThreshold [protected]

Definition at line 109 of file itkThresholdSegmentationLevelSetFunction.h.

---

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

• itkThresholdSegmentationLevelSetFunction.h

---