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itk::GeodesicActiveContourShapePriorLevelSetFunction< TImageType, TFeatureImageType > Class Template Reference
[Finite Difference Functions]

This function is used in GeodesicActiveContourShapePriorSegmentationLevelSetFilter to segment structures in an image based on user supplied edge potential map and shape model. More...

#include <itkGeodesicActiveContourShapePriorLevelSetFunction.h>

Inheritance diagram for itk::GeodesicActiveContourShapePriorLevelSetFunction< TImageType, TFeatureImageType >:

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Collaboration diagram for itk::GeodesicActiveContourShapePriorLevelSetFunction< TImageType, TFeatureImageType >:

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List of all members.

Public Types

typedef SmartPointer< const SelfConstPointer
typedef
Superclass::ContinuousIndexType 
ContinuousIndexType
typedef
ZeroFluxNeumannBoundaryCondition
< ImageType
DefaultBoundaryConditionType
typedef TFeatureImageType FeatureImageType
typedef
Superclass::FeatureScalarType 
FeatureScalarType
typedef Superclass::FloatOffsetType FloatOffsetType
typedef
Superclass::GlobalDataStruct 
GlobalDataStruct
typedef Superclass::ImageType ImageType
typedef Superclass::IndexType IndexType
typedef
LinearInterpolateImageFunction
< ImageType
InterpolatorType
typedef
Superclass::NeighborhoodScalesType 
NeighborhoodScalesType
typedef
Superclass::NeighborhoodType 
NeighborhoodType
typedef Superclass::PixelRealType PixelRealType
typedef Superclass::PixelType PixelType
typedef SmartPointer< SelfPointer
typedef Superclass::RadiusType RadiusType
typedef Superclass::ScalarValueType ScalarValueType
typedef
GeodesicActiveContourShapePriorLevelSetFunction 
Self
typedef
ShapeFunctionType::ConstPointer 
ShapeFunctionPointer
typedef
ShapeSignedDistanceFunction
< double,
itkGetStaticConstMacro(ImageDimension)> 
ShapeFunctionType
typedef
ShapePriorSegmentationLevelSetFunction
< TImageType,
TFeatureImageType > 
Superclass
typedef Superclass::TimeStepType TimeStepType
typedef Superclass::VectorImageType VectorImageType
typedef
VectorLinearInterpolateImageFunction
< VectorImageType
VectorInterpolatorType
typedef Superclass::VectorType VectorType

Public Member Functions

virtual VectorType AdvectionField (const NeighborhoodType &, const FloatOffsetType &, GlobalDataStruct *=0) const
virtual void AllocateAdvectionImage ()
virtual void AllocateSpeedImage ()
virtual void CalculateAdvectionImage ()
virtual void CalculateSpeedImage ()
virtual ScalarValueType Compute3DMinimalCurvature (const NeighborhoodType &, const FloatOffsetType &, GlobalDataStruct *gd=0)
virtual TimeStepType ComputeGlobalTimeStep (void *globalData) const
virtual ScalarValueType ComputeMinimalCurvature (const NeighborhoodType &, const FloatOffsetType &, GlobalDataStruct *gd=0)
const NeighborhoodScalesType ComputeNeighborhoodScales () const
virtual PixelType ComputeUpdate (const NeighborhoodType &neighborhood, void *globalData, const FloatOffsetType &=FloatOffsetType(0.0))
virtual Pointer CreateAnother () const
virtual ScalarValueType CurvatureSpeed (const NeighborhoodType &, const FloatOffsetType &, GlobalDataStruct *=0) const
virtual ScalarValueType CurvatureSpeed (const NeighborhoodType &neighborhood, const FloatOffsetType &offset, GlobalDataStruct *gd) const
virtual void Delete ()
virtual const char * GetNameOfClass () const
const RadiusTypeGetRadius () const
virtual int GetReferenceCount () const
virtual void Initialize (const RadiusType &r)
virtual void Initialize (const RadiusType &r)
virtual void InitializeIteration ()
 itkStaticConstMacro (ImageDimension, unsigned int, ImageType::ImageDimension)
 itkStaticConstMacro (ImageDimension, unsigned int, Superclass::ImageDimension)
virtual ScalarValueType LaplacianSmoothingSpeed (const NeighborhoodType &, const FloatOffsetType &, GlobalDataStruct *=0) const
void Print (std::ostream &os, Indent indent=0) const
virtual ScalarValueType PropagationSpeed (const NeighborhoodType &, const FloatOffsetType &, GlobalDataStruct *=0) const
virtual void Register () const
virtual void ReleaseGlobalDataPointer (void *GlobalData) const
virtual void ReverseExpansionDirection ()
void SetRadius (const RadiusType &r)
virtual void SetReferenceCount (int)
virtual void UnRegister () const
virtual ScalarValueType ComputeCurvatureTerm (const NeighborhoodType &, const FloatOffsetType &, GlobalDataStruct *gd=0)
virtual ScalarValueType ComputeMeanCurvature (const NeighborhoodType &, const FloatOffsetType &, GlobalDataStruct *gd=0)
virtual VectorImageTypeGetAdvectionImage () const
void SetAdvectionImage (VectorImageType *s)
ScalarValueType GetAdvectionWeight () const
virtual void SetAdvectionWeight (const ScalarValueType a)
ScalarValueType GetCurvatureWeight () const
virtual void SetCurvatureWeight (const ScalarValueType c)
double GetDerivativeSigma ()
void SetDerivativeSigma (const double v)
ScalarValueType GetEpsilonMagnitude () const
void SetEpsilonMagnitude (const ScalarValueType e)
virtual const FeatureImageTypeGetFeatureImage () const
virtual void SetFeatureImage (const FeatureImageType *f)
virtual void * GetGlobalDataPointer () const
ScalarValueType GetLaplacianSmoothingWeight () const
void SetLaplacianSmoothingWeight (const ScalarValueType c)
ScalarValueType GetPropagationWeight () const
virtual void SetPropagationWeight (const ScalarValueType p)
const ShapeFunctionTypeGetShapeFunction () const
void SetShapeFunction (const ShapeFunctionType *ptr)
ScalarValueType GetShapePriorWeight () const
void SetShapePriorWeight (const ScalarValueType p)
virtual ImageTypeGetSpeedImage ()
void SetSpeedImage (ImageType *s)
bool GetUseMinimalCurvature () const
void SetUseMinimalCurvature (bool b)
void UseMinimalCurvatureOff ()
void UseMinimalCurvatureOn ()
void SetScaleCoefficients (PixelRealType vals[ImageDimension])

Static Public Member Functions

static void BreakOnError ()
static Pointer New ()
static double GetMaximumCurvatureTimeStep ()
static void SetMaximumCurvatureTimeStep (double n)
static double GetMaximumPropagationTimeStep ()
static void SetMaximumPropagationTimeStep (double n)

Protected Types

typedef int InternalReferenceCountType

Protected Member Functions

virtual VectorType AdvectionField (const NeighborhoodType &, const FloatOffsetType &, GlobalDataStruct *gd) const
 GeodesicActiveContourShapePriorLevelSetFunction (const Self &)
 GeodesicActiveContourShapePriorLevelSetFunction ()
void operator= (const Self &)
void PrintSelf (std::ostream &os, Indent indent) const
virtual ScalarValueType PropagationSpeed (const NeighborhoodType &, const FloatOffsetType &, GlobalDataStruct *gd) const
virtual ~GeodesicActiveContourShapePriorLevelSetFunction ()
virtual void PrintHeader (std::ostream &os, Indent indent) const
virtual void PrintTrailer (std::ostream &os, Indent indent) const

Static Protected Member Functions

static VectorType InitializeZeroVectorConstant ()

Protected Attributes

VectorImageType::Pointer m_AdvectionImage
ScalarValueType m_AdvectionWeight
::vcl_size_t m_Center
ScalarValueType m_CurvatureWeight
ScalarValueType m_EpsilonMagnitude
FeatureImageType::ConstPointer m_FeatureImage
InterpolatorType::Pointer m_Interpolator
ScalarValueType m_LaplacianSmoothingWeight
ScalarValueType m_PropagationWeight
RadiusType m_Radius
InternalReferenceCountType m_ReferenceCount
SimpleFastMutexLock m_ReferenceCountLock
PixelRealType m_ScaleCoefficients [ImageDimension]
ImageType::Pointer m_SpeedImage
bool m_UseMinimalCurvature
Functor::VectorCast< typename
VectorInterpolatorType::OutputType,
VectorType
m_VectorCast
VectorInterpolatorType::Pointer m_VectorInterpolator
::vcl_size_t m_xStride [itkGetStaticConstMacro(ImageDimension)]
std::slice x_slice [itkGetStaticConstMacro(ImageDimension)]

Static Protected Attributes

static double m_DT
static double m_WaveDT
static VectorType m_ZeroVectorConstant


Detailed Description

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

This function is used in GeodesicActiveContourShapePriorSegmentationLevelSetFilter to segment structures in an image based on user supplied edge potential map and shape model.

IMPORTANT
The LevelSetFunction, SegmentationLevelSetFunction and ShapePriorSegmentationLevelSetFunction classes contain additional information necessary to gain full understanding of how to use this function.
GeodesicActiveContourShapePriorLevelSetFunction is a subclass of the generic LevelSetFunction. It is used to segment structures in an image based on a user supplied edge potential map $ g(I) $, which has values close to zero in regions near edges (or high image gradient) and values close to one in regions with relatively constant intensity. Typically, the edge potential map is a function of the gradient, for example:

\[ g(I) = 1 / ( 1 + | (\nabla * G)(I)| ) \]

\[ g(I) = \exp^{-|(\nabla * G)(I)|} \]

where $ I $ is image intensity and $ (\nabla * G) $ is the derivative of Gaussian operator.

The edge potential image is set via the SetFeatureImage() method.

In this function both the propagation term $ P(\mathbf{x}) $ and the curvature spatial modifier term $ Z(\mathbf{x}) $ are taken directly from the edge potential image such that:

\[ P(\mathbf{x}) = g(\mathbf{x}) \]

\[ Z(\mathbf{x}) = g(\mathbf{x}) \]

An advection term $ \mathbf{A}(\mathbf{x}) $ is constructed from the negative gradient of the edge potential image.

\[ \mathbf{A}(\mathbf{x}) = -\nabla g(\mathbf{x}) \]

This term behaves like a doublet attracting the contour to the edges.

This class extends the basic LevelSetFunction with a shape prior term as developed in [1].

$ \zeta( \phi^{*} - \phi) $

where $ \phi^{*} $ is the signed distance function from a target shape and $ \zeta $ is a scalar constant.

The target shape signed distance function is supplied through a ShapeSignedDistanceFunction object. Typically, the shape is a function of a set of parameters.

See also:
LevelSetFunction

SegmentationLevelSetFunction

ShapePriorSegmentationLevelSetFunction

ShapeSignedDistanceFunction

REFERENCES
[1] Leventon, M.E. et al. "Statistical Shape Influence in Geodesic Active Contours", CVPR 2000.

Definition at line 91 of file itkGeodesicActiveContourShapePriorLevelSetFunction.h.


Member Typedef Documentation

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

Continuous index type recognized by the interpolator

Reimplemented from itk::SegmentationLevelSetFunction< TImageType, TFeatureImageType >.

Definition at line 82 of file itkShapePriorSegmentationLevelSetFunction.h.

The default boundary condition for finite difference functions that is used unless overridden in the Evaluate() method.

Definition at line 92 of file itkFiniteDifferenceFunction.h.

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

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

template<class TImageType , class TFeatureImageType = TImageType>
typedef Superclass::FloatOffsetType itk::GeodesicActiveContourShapePriorLevelSetFunction< TImageType, TFeatureImageType >::FloatOffsetType

A floating point offset from an image grid location. Used for interpolation among grid values in a neighborhood.

Reimplemented from itk::ShapePriorSegmentationLevelSetFunction< TImageType, TFeatureImageType >.

Definition at line 116 of file itkGeodesicActiveContourShapePriorLevelSetFunction.h.

template<class TImageType , class TFeatureImageType = TImageType>
typedef Superclass::GlobalDataStruct itk::GeodesicActiveContourShapePriorLevelSetFunction< TImageType, TFeatureImageType >::GlobalDataStruct

A global data type used to store values needed to compute the time step.

Reimplemented from itk::ShapePriorSegmentationLevelSetFunction< TImageType, TFeatureImageType >.

Definition at line 118 of file itkGeodesicActiveContourShapePriorLevelSetFunction.h.

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

Extract some parameters from the superclass.

Reimplemented from itk::ShapePriorSegmentationLevelSetFunction< TImageType, TFeatureImageType >.

Definition at line 108 of file itkGeodesicActiveContourShapePriorLevelSetFunction.h.

typedef Superclass::IndexType itk::ShapePriorSegmentationLevelSetFunction< TImageType , TFeatureImageType >::IndexType [inherited]

typedef int itk::LightObject::InternalReferenceCountType [protected, inherited]

Define the type of the reference count according to the target. This allows the use of atomic operations

Definition at line 139 of file itkLightObject.h.

typedef LinearInterpolateImageFunction<ImageType> itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::InterpolatorType [inherited]

Define a scalar interpolator

Definition at line 79 of file itkSegmentationLevelSetFunction.h.

The type of data structure that holds the scales with which the neighborhood is weighted to properly account for spacing and neighborhood radius.

Reimplemented from itk::FiniteDifferenceFunction< TImageType >.

Reimplemented in itk::LevelSetFunctionWithRefitTerm< TImageType, TSparseImageType >.

Definition at line 91 of file itkLevelSetFunction.h.

template<class TImageType , class TFeatureImageType = TImageType>
typedef Superclass::NeighborhoodType itk::GeodesicActiveContourShapePriorLevelSetFunction< TImageType, TFeatureImageType >::NeighborhoodType

The type of data structure that is passed to this function object to evaluate at a pixel that does not lie on a data set boundary.

Reimplemented from itk::ShapePriorSegmentationLevelSetFunction< TImageType, TFeatureImageType >.

Definition at line 112 of file itkGeodesicActiveContourShapePriorLevelSetFunction.h.

typedef Superclass::PixelRealType itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::PixelRealType [inherited]

Reimplemented from itk::LevelSetFunction< TImageType >.

Definition at line 61 of file itkSegmentationLevelSetFunction.h.

typedef Superclass::PixelType itk::ShapePriorSegmentationLevelSetFunction< TImageType , TFeatureImageType >::PixelType [inherited]

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

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

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

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

Definition at line 91 of file itkShapePriorSegmentationLevelSetFunction.h.

typedef ShapeSignedDistanceFunction<double, itkGetStaticConstMacro(ImageDimension)> itk::ShapePriorSegmentationLevelSetFunction< TImageType , TFeatureImageType >::ShapeFunctionType [inherited]

ShapeFunction typedef support.

Definition at line 90 of file itkShapePriorSegmentationLevelSetFunction.h.

template<class TImageType , class TFeatureImageType = TImageType>
typedef ShapePriorSegmentationLevelSetFunction<TImageType,TFeatureImageType> itk::GeodesicActiveContourShapePriorLevelSetFunction< TImageType, TFeatureImageType >::Superclass

typedef Superclass::TimeStepType itk::ShapePriorSegmentationLevelSetFunction< TImageType , TFeatureImageType >::TimeStepType [inherited]

Convenient typedefs.

Reimplemented from itk::LevelSetFunction< TImageType >.

Definition at line 80 of file itkShapePriorSegmentationLevelSetFunction.h.

template<class TImageType , class TFeatureImageType = TImageType>
typedef Superclass::VectorImageType itk::GeodesicActiveContourShapePriorLevelSetFunction< TImageType, TFeatureImageType >::VectorImageType

Define an image type for the advection field.

Reimplemented from itk::ShapePriorSegmentationLevelSetFunction< TImageType, TFeatureImageType >.

Definition at line 117 of file itkGeodesicActiveContourShapePriorLevelSetFunction.h.

Define a vector interpolator

Definition at line 82 of file itkSegmentationLevelSetFunction.h.

typedef Superclass::VectorType itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::VectorType [inherited]

The vector type that will be used in the calculations.

Reimplemented from itk::LevelSetFunction< TImageType >.

Definition at line 68 of file itkSegmentationLevelSetFunction.h.


Constructor & Destructor Documentation

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

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

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


Member Function Documentation

virtual VectorType itk::LevelSetFunction< TImageType >::AdvectionField ( const NeighborhoodType ,
const FloatOffsetType ,
GlobalDataStruct *  = 0 
) const [inline, virtual, inherited]

Advection field. Default implementation returns a vector of zeros.

Definition at line 124 of file itkLevelSetFunction.h.

virtual VectorType itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::AdvectionField ( const NeighborhoodType ,
const FloatOffsetType ,
GlobalDataStruct *  gd 
) const [protected, virtual, inherited]

Advection field. Returns a vector from the computed advectionfield.

virtual void itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::AllocateAdvectionImage (  )  [virtual, inherited]

Allocates the image that will be used for the level set function's Advection field term. See LevelSetFunction for more information.

virtual void itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::AllocateSpeedImage (  )  [virtual, inherited]

Allocates the image that will be used for the level set function's Propagation Speed term. See LevelSetFunction for more information.

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

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

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

Compute the advection field from feature image.

Reimplemented from itk::SegmentationLevelSetFunction< TImageType, TFeatureImageType >.

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

Compute speed image from feature image.

Reimplemented from itk::SegmentationLevelSetFunction< TImageType, TFeatureImageType >.

virtual ScalarValueType itk::LevelSetFunction< TImageType >::Compute3DMinimalCurvature ( const NeighborhoodType ,
const FloatOffsetType ,
GlobalDataStruct *  gd = 0 
) [virtual, inherited]

virtual ScalarValueType itk::LevelSetFunction< TImageType >::ComputeCurvatureTerm ( const NeighborhoodType ,
const FloatOffsetType ,
GlobalDataStruct *  gd = 0 
) [virtual, inherited]

virtual TimeStepType itk::ShapePriorSegmentationLevelSetFunction< TImageType , TFeatureImageType >::ComputeGlobalTimeStep ( void *  globalData  )  const [virtual, inherited]

Compute global time step from the global data structure.

Reimplemented from itk::LevelSetFunction< TImageType >.

virtual ScalarValueType itk::LevelSetFunction< TImageType >::ComputeMeanCurvature ( const NeighborhoodType ,
const FloatOffsetType ,
GlobalDataStruct *  gd = 0 
) [virtual, inherited]

virtual ScalarValueType itk::LevelSetFunction< TImageType >::ComputeMinimalCurvature ( const NeighborhoodType ,
const FloatOffsetType ,
GlobalDataStruct *  gd = 0 
) [virtual, inherited]

const NeighborhoodScalesType itk::FiniteDifferenceFunction< TImageType >::ComputeNeighborhoodScales (  )  const [inherited]

Compute the scales that weight the neighborhood during difference operations to properly account for spacing and neighborhood radius

virtual PixelType itk::ShapePriorSegmentationLevelSetFunction< TImageType , TFeatureImageType >::ComputeUpdate ( const NeighborhoodType neighborhood,
void *  globalData,
const FloatOffsetType = FloatOffsetType(0.0) 
) [virtual, inherited]

Compute the equation value with the additional shape prior term.

Reimplemented from itk::LevelSetFunction< TImageType >.

virtual Pointer itk::LightObject::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 in itk::Object.

virtual ScalarValueType itk::LevelSetFunction< TImageType >::CurvatureSpeed ( const NeighborhoodType ,
const FloatOffsetType ,
GlobalDataStruct *  = 0 
) const [inline, virtual, inherited]

Curvature speed. Can be used to spatially modify the effects of curvature . The default implementation returns one.

Definition at line 137 of file itkLevelSetFunction.h.

template<class TImageType , class TFeatureImageType = TImageType>
virtual ScalarValueType itk::GeodesicActiveContourShapePriorLevelSetFunction< TImageType, TFeatureImageType >::CurvatureSpeed ( const NeighborhoodType neighborhood,
const FloatOffsetType offset,
GlobalDataStruct gd 
) const [inline, virtual]

The curvature speed is same as the propagation speed.

Definition at line 131 of file itkGeodesicActiveContourShapePriorLevelSetFunction.h.

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.

virtual VectorImageType* itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::GetAdvectionImage (  )  const [inline, virtual, inherited]

Get/Set the image used as the advection field in the level set equation

Definition at line 101 of file itkSegmentationLevelSetFunction.h.

ScalarValueType itk::LevelSetFunction< TImageType >::GetAdvectionWeight (  )  const [inline, inherited]

Alpha. Scales all advection term values.

Definition at line 152 of file itkLevelSetFunction.h.

ScalarValueType itk::LevelSetFunction< TImageType >::GetCurvatureWeight (  )  const [inline, inherited]

Gamma. Scales all curvature weight values

Definition at line 166 of file itkLevelSetFunction.h.

template<class TImageType , class TFeatureImageType = TImageType>
double itk::GeodesicActiveContourShapePriorLevelSetFunction< TImageType, TFeatureImageType >::GetDerivativeSigma (  )  [inline]

Set/Get the sigma for the Gaussian kernel used to compute the gradient of the feature image needed for the advection term of the equation.

Definition at line 139 of file itkGeodesicActiveContourShapePriorLevelSetFunction.h.

ScalarValueType itk::LevelSetFunction< TImageType >::GetEpsilonMagnitude (  )  const [inline, inherited]

Epsilon.

Definition at line 180 of file itkLevelSetFunction.h.

virtual const FeatureImageType* itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::GetFeatureImage (  )  const [inline, virtual, inherited]

Set/Get the image which will be used to calculate the speed function.

Definition at line 88 of file itkSegmentationLevelSetFunction.h.

virtual void* itk::ShapePriorSegmentationLevelSetFunction< TImageType , TFeatureImageType >::GetGlobalDataPointer (  )  const [inline, virtual, inherited]

Returns a pointer to a global data structure for computing time step.

Reimplemented from itk::LevelSetFunction< TImageType >.

Definition at line 125 of file itkShapePriorSegmentationLevelSetFunction.h.

ScalarValueType itk::LevelSetFunction< TImageType >::GetLaplacianSmoothingWeight (  )  const [inline, inherited]

Weight of the laplacian smoothing term

Definition at line 173 of file itkLevelSetFunction.h.

static double itk::LevelSetFunction< TImageType >::GetMaximumCurvatureTimeStep (  )  [inline, static, inherited]

Set/Get the maximum constraint for the curvature term factor in the time step calculation. Changing this value from the default is not recommended or necessary, but can be used to speed up the surface evolution at the risk of creating an unstable solution.

Definition at line 274 of file itkLevelSetFunction.h.

static double itk::LevelSetFunction< TImageType >::GetMaximumPropagationTimeStep (  )  [inline, static, inherited]

Set/Get the maximum constraint for the scalar/vector term factor of the time step calculation. Changing this value from the default is not recommended or necessary, but can be used to speed up the surface evolution at the risk of creating an unstable solution.

Definition at line 288 of file itkLevelSetFunction.h.

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

Run-time type information (and related methods)

Reimplemented from itk::ShapePriorSegmentationLevelSetFunction< TImageType, TFeatureImageType >.

ScalarValueType itk::LevelSetFunction< TImageType >::GetPropagationWeight (  )  const [inline, inherited]

Beta. Scales all propagation term values.

Definition at line 159 of file itkLevelSetFunction.h.

const RadiusType& itk::FiniteDifferenceFunction< TImageType >::GetRadius ( void   )  const [inline, inherited]

Returns the radius of the neighborhood this FiniteDifferenceFunction needs to perform its calculations.

Definition at line 146 of file itkFiniteDifferenceFunction.h.

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

Gets the reference count on this object.

Definition at line 106 of file itkLightObject.h.

const ShapeFunctionType* itk::ShapePriorSegmentationLevelSetFunction< TImageType , TFeatureImageType >::GetShapeFunction (  )  const [inline, inherited]

The ShapeFunction encapsulates the signed distance to the shape used to influence the evolution of the level set.

Definition at line 104 of file itkShapePriorSegmentationLevelSetFunction.h.

ScalarValueType itk::ShapePriorSegmentationLevelSetFunction< TImageType , TFeatureImageType >::GetShapePriorWeight (  )  const [inline, inherited]

Zeta. The ShapePriorWeight scales the shape prior term values.

Definition at line 96 of file itkShapePriorSegmentationLevelSetFunction.h.

virtual ImageType* itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::GetSpeedImage (  )  [inline, virtual, inherited]

Get/Set the image used as the speed function in the level set equation

Definition at line 95 of file itkSegmentationLevelSetFunction.h.

bool itk::LevelSetFunction< TImageType >::GetUseMinimalCurvature (  )  const [inline, inherited]

Definition at line 252 of file itkLevelSetFunction.h.

virtual void itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::Initialize ( const RadiusType &  r  )  [virtual, inherited]

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::LevelSetFunction< TImageType >.

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

virtual void itk::FiniteDifferenceFunction< TImageType >::InitializeIteration (  )  [inline, virtual, inherited]

This method allows the function to set its state before each iteration of the finite difference solver (image filter) that uses it. This is a thread-safe time to manipulate the object's state.

An example of how this can be used: the Anisotropic diffusion class of FiniteDifferenceFunctions use this method to pre-calculate an average gradient magnitude across the entire image region. This value is set in the function object and used by the ComputeUpdate methods that are called at each pixel as a constant.

Definition at line 118 of file itkFiniteDifferenceFunction.h.

static VectorType itk::LevelSetFunction< TImageType >::InitializeZeroVectorConstant (  )  [static, protected, inherited]

This method's only purpose is to initialize the zero vector constant.

itk::FiniteDifferenceFunction< TImageType >::itkStaticConstMacro ( ImageDimension  ,
unsigned  int,
ImageType::ImageDimension   
) [inherited]

Save image dimension.

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

Extract some parameters from the superclass.

Reimplemented from itk::ShapePriorSegmentationLevelSetFunction< TImageType, TFeatureImageType >.

virtual ScalarValueType itk::LevelSetFunction< TImageType >::LaplacianSmoothingSpeed ( const NeighborhoodType ,
const FloatOffsetType ,
GlobalDataStruct *  = 0 
) const [inline, virtual, inherited]

Laplacian smoothing speed. Can be used to spatially modify the effects of laplacian smoothing of the level set function

Definition at line 144 of file itkLevelSetFunction.h.

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

Method for creation through the object factory.

Reimplemented from itk::ShapePriorSegmentationLevelSetFunction< TImageType, TFeatureImageType >.

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

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

Cause the object to print itself out.

Referenced by itk::WeakPointer< ProcessObject >::Print().

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

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.

template<class TImageType , class TFeatureImageType = TImageType>
void itk::GeodesicActiveContourShapePriorLevelSetFunction< 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::ShapePriorSegmentationLevelSetFunction< TImageType, TFeatureImageType >.

Definition at line 169 of file itkGeodesicActiveContourShapePriorLevelSetFunction.h.

References HardConnectedComponentImageFilter::PrintSelf().

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

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.

virtual ScalarValueType itk::LevelSetFunction< TImageType >::PropagationSpeed ( const NeighborhoodType ,
const FloatOffsetType ,
GlobalDataStruct *  = 0 
) const [inline, virtual, inherited]

Propagation speed. This term controls surface expansion/contraction. Default implementation returns zero.

Definition at line 130 of file itkLevelSetFunction.h.

virtual ScalarValueType itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::PropagationSpeed ( const NeighborhoodType ,
const FloatOffsetType ,
GlobalDataStruct *  gd 
) const [protected, virtual, inherited]

Returns the propagation speed from the precalculated speed image.

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

Increase the reference count (mark as used by another object).

Reimplemented in itk::Object.

virtual void itk::ShapePriorSegmentationLevelSetFunction< TImageType , TFeatureImageType >::ReleaseGlobalDataPointer ( void *  GlobalData  )  const [inline, virtual, inherited]

Release the global data structure.

Reimplemented from itk::LevelSetFunction< TImageType >.

Definition at line 137 of file itkShapePriorSegmentationLevelSetFunction.h.

virtual void itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::ReverseExpansionDirection (  )  [virtual, inherited]

Determines whether Positive or Negative speed terms will cause surface expansion. This method flips the sign of all of the speed, advection, etc terms. By convention, filters should be written so that POSITIVE speed terms cause surface expansion. Calling this method will toggle between the standard POSITIVE EXPANSION convention and the nonstandard NEGATIVE EXPANSION convention.

IMPORTANT: When adding terms to the level-set equation through subclassing you may need to override this function so that your new terms will be properly adjusted.

void itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::SetAdvectionImage ( VectorImageType s  )  [inherited]

Get/Set the image used as the advection field in the level set equation

virtual void itk::LevelSetFunction< TImageType >::SetAdvectionWeight ( const ScalarValueType  a  )  [inline, virtual, inherited]

Alpha. Scales all advection term values.

Definition at line 150 of file itkLevelSetFunction.h.

virtual void itk::LevelSetFunction< TImageType >::SetCurvatureWeight ( const ScalarValueType  c  )  [inline, virtual, inherited]

Gamma. Scales all curvature weight values

Definition at line 164 of file itkLevelSetFunction.h.

template<class TImageType , class TFeatureImageType = TImageType>
void itk::GeodesicActiveContourShapePriorLevelSetFunction< TImageType, TFeatureImageType >::SetDerivativeSigma ( const double  v  )  [inline]

Set/Get the sigma for the Gaussian kernel used to compute the gradient of the feature image needed for the advection term of the equation.

Definition at line 137 of file itkGeodesicActiveContourShapePriorLevelSetFunction.h.

void itk::LevelSetFunction< TImageType >::SetEpsilonMagnitude ( const ScalarValueType  e  )  [inline, inherited]

Epsilon.

Definition at line 178 of file itkLevelSetFunction.h.

virtual void itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::SetFeatureImage ( const FeatureImageType *  f  )  [inline, virtual, inherited]

Set/Get the image which will be used to calculate the speed function.

Definition at line 90 of file itkSegmentationLevelSetFunction.h.

void itk::LevelSetFunction< TImageType >::SetLaplacianSmoothingWeight ( const ScalarValueType  c  )  [inline, inherited]

Weight of the laplacian smoothing term

Definition at line 171 of file itkLevelSetFunction.h.

static void itk::LevelSetFunction< TImageType >::SetMaximumCurvatureTimeStep ( double  n  )  [inline, static, inherited]

Set/Get the maximum constraint for the curvature term factor in the time step calculation. Changing this value from the default is not recommended or necessary, but can be used to speed up the surface evolution at the risk of creating an unstable solution.

Definition at line 270 of file itkLevelSetFunction.h.

static void itk::LevelSetFunction< TImageType >::SetMaximumPropagationTimeStep ( double  n  )  [inline, static, inherited]

Set/Get the maximum constraint for the scalar/vector term factor of the time step calculation. Changing this value from the default is not recommended or necessary, but can be used to speed up the surface evolution at the risk of creating an unstable solution.

Definition at line 284 of file itkLevelSetFunction.h.

virtual void itk::LevelSetFunction< TImageType >::SetPropagationWeight ( const ScalarValueType  p  )  [inline, virtual, inherited]

Beta. Scales all propagation term values.

Definition at line 157 of file itkLevelSetFunction.h.

void itk::FiniteDifferenceFunction< TImageType >::SetRadius ( const RadiusType &  r  )  [inline, inherited]

Sets the radius of the neighborhood this FiniteDifferenceFunction needs to perform its calculations.

Definition at line 141 of file itkFiniteDifferenceFunction.h.

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

Sets the reference count on this object. This is a dangerous method, use it with care.

Reimplemented in itk::Object.

void itk::FiniteDifferenceFunction< TImageType >::SetScaleCoefficients ( PixelRealType  vals[ImageDimension]  )  [inline, inherited]

Set the ScaleCoefficients for the difference operators. The defaults a 1.0. These can be set to take the image spacing into account.

Definition at line 152 of file itkFiniteDifferenceFunction.h.

void itk::ShapePriorSegmentationLevelSetFunction< TImageType , TFeatureImageType >::SetShapeFunction ( const ShapeFunctionType ptr  )  [inline, inherited]

The ShapeFunction encapsulates the signed distance to the shape used to influence the evolution of the level set.

Definition at line 102 of file itkShapePriorSegmentationLevelSetFunction.h.

void itk::ShapePriorSegmentationLevelSetFunction< TImageType , TFeatureImageType >::SetShapePriorWeight ( const ScalarValueType  p  )  [inline, inherited]

Zeta. The ShapePriorWeight scales the shape prior term values.

Definition at line 94 of file itkShapePriorSegmentationLevelSetFunction.h.

void itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::SetSpeedImage ( ImageType *  s  )  [inherited]

Get/Set the image used as the speed function in the level set equation

void itk::LevelSetFunction< TImageType >::SetUseMinimalCurvature ( bool  b  )  [inline, inherited]

Definition at line 248 of file itkLevelSetFunction.h.

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

Decrease the reference count (release by another object).

Reimplemented in itk::Object.

void itk::LevelSetFunction< TImageType >::UseMinimalCurvatureOff (  )  [inline, inherited]

Definition at line 260 of file itkLevelSetFunction.h.

void itk::LevelSetFunction< TImageType >::UseMinimalCurvatureOn (  )  [inline, inherited]

Definition at line 256 of file itkLevelSetFunction.h.


Member Data Documentation

VectorImageType::Pointer itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::m_AdvectionImage [protected, inherited]

The image holding the advection field for front propation

Definition at line 152 of file itkSegmentationLevelSetFunction.h.

ScalarValueType itk::LevelSetFunction< TImageType >::m_AdvectionWeight [protected, inherited]

Alpha.

Definition at line 332 of file itkLevelSetFunction.h.

:: vcl_size_t itk::LevelSetFunction< TImageType >::m_Center [protected, inherited]

The offset of the center pixel in the neighborhood.

Definition at line 314 of file itkLevelSetFunction.h.

ScalarValueType itk::LevelSetFunction< TImageType >::m_CurvatureWeight [protected, inherited]

Gamma.

Definition at line 338 of file itkLevelSetFunction.h.

double itk::LevelSetFunction< TImageType >::m_DT [static, protected, inherited]

Definition at line 308 of file itkLevelSetFunction.h.

ScalarValueType itk::LevelSetFunction< TImageType >::m_EpsilonMagnitude [protected, inherited]

Epsilon magnitude controls the lower limit for gradient magnitude.

Definition at line 329 of file itkLevelSetFunction.h.

FeatureImageType::ConstPointer itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::m_FeatureImage [protected, inherited]

The image whose features will be used to create a speed image

Definition at line 146 of file itkSegmentationLevelSetFunction.h.

InterpolatorType::Pointer itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::m_Interpolator [protected, inherited]

Definition at line 176 of file itkSegmentationLevelSetFunction.h.

ScalarValueType itk::LevelSetFunction< TImageType >::m_LaplacianSmoothingWeight [protected, inherited]

Laplacean smoothing term

Definition at line 341 of file itkLevelSetFunction.h.

ScalarValueType itk::LevelSetFunction< TImageType >::m_PropagationWeight [protected, inherited]

Beta.

Definition at line 335 of file itkLevelSetFunction.h.

RadiusType itk::FiniteDifferenceFunction< TImageType >::m_Radius [protected, inherited]

Definition at line 203 of file itkFiniteDifferenceFunction.h.

Number of uses of this object by other objects.

Definition at line 144 of file itkLightObject.h.

Mutex lock to protect modification to the reference count

Definition at line 147 of file itkLightObject.h.

PixelRealType itk::FiniteDifferenceFunction< TImageType >::m_ScaleCoefficients[ImageDimension] [protected, inherited]

Definition at line 204 of file itkFiniteDifferenceFunction.h.

ImageType::Pointer itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::m_SpeedImage [protected, inherited]

The image holding the speed values for front propagation

Definition at line 149 of file itkSegmentationLevelSetFunction.h.

bool itk::LevelSetFunction< TImageType >::m_UseMinimalCurvature [protected, inherited]

Definition at line 319 of file itkLevelSetFunction.h.

Functor::VectorCast< typename VectorInterpolatorType::OutputType, VectorType > itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::m_VectorCast [protected, inherited]

A casting functor to convert between vector types.

Definition at line 156 of file itkSegmentationLevelSetFunction.h.

VectorInterpolatorType::Pointer itk::SegmentationLevelSetFunction< TImageType , TFeatureImageType >::m_VectorInterpolator [protected, inherited]

Definition at line 177 of file itkSegmentationLevelSetFunction.h.

double itk::LevelSetFunction< TImageType >::m_WaveDT [static, protected, inherited]

Constants used in the time step calculation.

Definition at line 307 of file itkLevelSetFunction.h.

:: vcl_size_t itk::LevelSetFunction< TImageType >::m_xStride[itkGetStaticConstMacro(ImageDimension)] [protected, inherited]

Stride length along the y-dimension.

Definition at line 317 of file itkLevelSetFunction.h.

VectorType itk::LevelSetFunction< TImageType >::m_ZeroVectorConstant [static, protected, inherited]

Zero vector constant.

Definition at line 326 of file itkLevelSetFunction.h.

std::slice itk::LevelSetFunction< TImageType >::x_slice[itkGetStaticConstMacro(ImageDimension)] [protected, inherited]

Slices for the ND neighborhood.

Definition at line 311 of file itkLevelSetFunction.h.


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

Generated at Tue Sep 15 08:43:19 2009 for ITK by doxygen 1.5.8 written by Dimitri van Heesch, © 1997-2000