#include <itkMixtureModelComponentBase.h>

Detailed Description

template<typename TSample>
class itk::Statistics::MixtureModelComponentBase< TSample >

base class for distribution modules that supports analytical way to update the distribution parameters

This class expects that its subclasses (distribution components) should have analytical expressions for updating its parameters using only the measurement vectors and their associated weights.

This class can be considered as a macro class that encapsulates the storage for the weights, model (subclasses of MembershipFunctionBase), and model parameter estimators (implementation of analytical expressions).

Subclasses of this class should define their own distribution specific membership function. For example, GaussianMixtureModelComponent class defines and creates a GaussianDensityFunction object for that matter. Subclasses should also cast such membership function object to MembershipFunctionBase object. By doing that, users can get pointers to membership functions from different distributional model

See also: ExpectationMaximizationMixtureModelEstimator

Definition at line 57 of file itkMixtureModelComponentBase.h.

Inheritance diagram for itk::Statistics::MixtureModelComponentBase< TSample >:

Collaboration diagram for itk::Statistics::MixtureModelComponentBase< TSample >:

Public Types
using	ConstPointer = SmartPointer< const Self >

using	MeasurementVectorSizeType = typename TSample::MeasurementVectorSizeType

using	MeasurementVectorType = typename TSample::MeasurementVectorType

using	MembershipFunctionType = MembershipFunctionBase< MeasurementVectorType >

using	ParametersType = Array< double >

using	Pointer = SmartPointer< Self >

using	Self = MixtureModelComponentBase

using	Superclass = Object

using	WeightArrayType = Array< double >

Public Types inherited from itk::Object
using	ConstPointer = SmartPointer< const Self >

using	Pointer = SmartPointer< Self >

using	Self = Object

using	Superclass = LightObject

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

using	Pointer = SmartPointer< Self >

using	Self = LightObject

Public Member Functions
bool	AreParametersModified ()

void	AreParametersModified (bool flag)

double	Evaluate (MeasurementVectorType &measurements)

virtual ParametersType	GetFullParameters ()

MembershipFunctionType *	GetMembershipFunction ()

double	GetMinimalParametersChange ()

const char *	GetNameOfClass () const override

const TSample *	GetSample () const

double	GetWeight (unsigned int index) const

virtual const WeightArrayType &	GetWeights () const

void	SetMinimalParametersChange (double change)

virtual void	SetParameters (const ParametersType &parameters)

virtual void	SetSample (const TSample *sample)

void	SetWeight (unsigned int index, double value)

virtual void	Update ()

Public Member Functions inherited from itk::Object
unsigned long	AddObserver (const EventObject &event, Command *cmd) const

unsigned long	AddObserver (const EventObject &event, std::function< void(const EventObject &)> function) const

LightObject::Pointer	CreateAnother () const override

virtual void	DebugOff () const

virtual void	DebugOn () const

Command *	GetCommand (unsigned long tag)

bool	GetDebug () const

MetaDataDictionary &	GetMetaDataDictionary ()

const MetaDataDictionary &	GetMetaDataDictionary () const

virtual ModifiedTimeType	GetMTime () const

virtual const TimeStamp &	GetTimeStamp () const

bool	HasObserver (const EventObject &event) const

void	InvokeEvent (const EventObject &)

void	InvokeEvent (const EventObject &) const

virtual void	Modified () const

void	Register () const override

void	RemoveAllObservers ()

void	RemoveObserver (unsigned long tag) const

void	SetDebug (bool debugFlag) const

void	SetReferenceCount (int) override

void	UnRegister () const noexcept override

void	SetMetaDataDictionary (const MetaDataDictionary &rhs)

void	SetMetaDataDictionary (MetaDataDictionary &&rrhs)

virtual void	SetObjectName (std::string _arg)

virtual const std::string &	GetObjectName () const

Public Member Functions inherited from itk::LightObject
Pointer	Clone () const

virtual void	Delete ()

virtual int	GetReferenceCount () const

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

Protected Member Functions
virtual void	GenerateData ()=0

	MixtureModelComponentBase ()

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

void	SetMembershipFunction (MembershipFunctionType *function)

	~MixtureModelComponentBase () override=default

Protected Member Functions inherited from itk::Object
	Object ()

bool	PrintObservers (std::ostream &os, Indent indent) const

virtual void	SetTimeStamp (const TimeStamp &timeStamp)

	~Object () override

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 Attributes
MembershipFunctionType *	m_MembershipFunction {}

double	m_MinimalParametersChange {}

ParametersType	m_Parameters {}

bool	m_ParametersModified {}

const TSample *	m_Sample {}

WeightArrayType	m_Weights {}

Additional Inherited Members
Static Public Member Functions inherited from itk::Object
static bool	GetGlobalWarningDisplay ()

static void	GlobalWarningDisplayOff ()

static void	GlobalWarningDisplayOn ()

static Pointer	New ()

static void	SetGlobalWarningDisplay (bool val)

Static Public Member Functions inherited from itk::LightObject
static void	BreakOnError ()

static Pointer	New ()

Protected Attributes inherited from itk::LightObject
std::atomic< int >	m_ReferenceCount {}

Member Typedef Documentation

◆ ConstPointer

template<typename TSample >

using itk::Statistics::MixtureModelComponentBase< TSample >::ConstPointer = SmartPointer<const Self>

Definition at line 64 of file itkMixtureModelComponentBase.h.

◆ MeasurementVectorSizeType

template<typename TSample >

using itk::Statistics::MixtureModelComponentBase< TSample >::MeasurementVectorSizeType = typename TSample::MeasurementVectorSizeType

Definition at line 70 of file itkMixtureModelComponentBase.h.

◆ MeasurementVectorType

template<typename TSample >

using itk::Statistics::MixtureModelComponentBase< TSample >::MeasurementVectorType = typename TSample::MeasurementVectorType

Definition at line 69 of file itkMixtureModelComponentBase.h.

◆ MembershipFunctionType

template<typename TSample >

using itk::Statistics::MixtureModelComponentBase< TSample >::MembershipFunctionType = MembershipFunctionBase<MeasurementVectorType>

type alias for the MembershipFunctionBase

Definition at line 73 of file itkMixtureModelComponentBase.h.

◆ ParametersType

template<typename TSample >

using itk::Statistics::MixtureModelComponentBase< TSample >::ParametersType = Array<double>

Definition at line 78 of file itkMixtureModelComponentBase.h.

◆ Pointer

template<typename TSample >

using itk::Statistics::MixtureModelComponentBase< TSample >::Pointer = SmartPointer<Self>

Definition at line 63 of file itkMixtureModelComponentBase.h.

◆ Self

template<typename TSample >

using itk::Statistics::MixtureModelComponentBase< TSample >::Self = MixtureModelComponentBase

Standard class type aliases.

Definition at line 61 of file itkMixtureModelComponentBase.h.

◆ Superclass

template<typename TSample >

using itk::Statistics::MixtureModelComponentBase< TSample >::Superclass = Object

Definition at line 62 of file itkMixtureModelComponentBase.h.

◆ WeightArrayType

template<typename TSample >

using itk::Statistics::MixtureModelComponentBase< TSample >::WeightArrayType = Array<double>

type alias of storage for the weights

Definition at line 76 of file itkMixtureModelComponentBase.h.

Constructor & Destructor Documentation

◆ MixtureModelComponentBase()

template<typename TSample >

itk::Statistics::MixtureModelComponentBase< TSample >::MixtureModelComponentBase ( )

protected

◆ ~MixtureModelComponentBase()

template<typename TSample >

itk::Statistics::MixtureModelComponentBase< TSample >::~MixtureModelComponentBase ( )

overrideprotecteddefault

Member Function Documentation

◆ AreParametersModified() [1/2]

template<typename TSample >

bool itk::Statistics::MixtureModelComponentBase< TSample >::AreParametersModified ( )

returns the value of parameter modified tag

◆ AreParametersModified() [2/2]

template<typename TSample >

void itk::Statistics::MixtureModelComponentBase< TSample >::AreParametersModified ( bool flag )

sets the parameters modified tag. if one or more of the membership function's parameters are changed, then flag should be true

◆ Evaluate()

template<typename TSample >

double itk::Statistics::MixtureModelComponentBase< TSample >::Evaluate ( MeasurementVectorType & measurements )

returns the membership score of the "measurements" vector

◆ GenerateData()

template<typename TSample >

virtual void itk::Statistics::MixtureModelComponentBase< TSample >::GenerateData ( )

protectedpure virtual

Implemented in itk::Statistics::GaussianMixtureModelComponent< TSample >.

◆ GetFullParameters()

template<typename TSample >

virtual ParametersType itk::Statistics::MixtureModelComponentBase< TSample >::GetFullParameters ( )

inlinevirtual

Definition at line 111 of file itkMixtureModelComponentBase.h.

◆ GetMembershipFunction()

template<typename TSample >

MembershipFunctionType* itk::Statistics::MixtureModelComponentBase< TSample >::GetMembershipFunction ( )

returns the pointer to the membership function object. Subclasses of this class are responsible for creating the actual membership function objects and cast them to MembershipFunctionBase objects

◆ GetMinimalParametersChange()

template<typename TSample >

double itk::Statistics::MixtureModelComponentBase< TSample >::GetMinimalParametersChange ( )

inline

Definition at line 102 of file itkMixtureModelComponentBase.h.

◆ GetNameOfClass()

template<typename TSample >

const char* itk::Statistics::MixtureModelComponentBase< TSample >::GetNameOfClass ( ) const

overridevirtual

Standard Macros

Reimplemented from itk::Object.

◆ GetSample()

template<typename TSample >

const TSample* itk::Statistics::MixtureModelComponentBase< TSample >::GetSample ( ) const

returns the sample pointer

◆ GetWeight()

template<typename TSample >

double itk::Statistics::MixtureModelComponentBase< TSample >::GetWeight ( unsigned int index ) const

returns the index-th weight

◆ GetWeights()

template<typename TSample >

virtual const WeightArrayType& itk::Statistics::MixtureModelComponentBase< TSample >::GetWeights ( ) const

virtual

returns the pointer to the weights array

◆ PrintSelf()

template<typename TSample >

void itk::Statistics::MixtureModelComponentBase< TSample >::PrintSelf	(	std::ostream &	os,
		Indent	indent
	)		const

overrideprotectedvirtual

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.

◆ SetMembershipFunction()

template<typename TSample >

void itk::Statistics::MixtureModelComponentBase< TSample >::SetMembershipFunction ( MembershipFunctionType * function )

protected

stores the pointer to the membership function. subclasses use this function to store their membership function object after dynamic creation

◆ SetMinimalParametersChange()

template<typename TSample >

void itk::Statistics::MixtureModelComponentBase< TSample >::SetMinimalParametersChange ( double change )

inline

Definition at line 96 of file itkMixtureModelComponentBase.h.

◆ SetParameters()

template<typename TSample >

virtual void itk::Statistics::MixtureModelComponentBase< TSample >::SetParameters ( const ParametersType & parameters )

virtual

Reimplemented in itk::Statistics::GaussianMixtureModelComponent< TSample >.

◆ SetSample()

template<typename TSample >

virtual void itk::Statistics::MixtureModelComponentBase< TSample >::SetSample ( const TSample * sample )

virtual

stores the sample pointer

Reimplemented in itk::Statistics::GaussianMixtureModelComponent< TSample >.

◆ SetWeight()

template<typename TSample >

void itk::Statistics::MixtureModelComponentBase< TSample >::SetWeight	(	unsigned int	index,
		double	value
	)

sets the index-th weight with the "value"

◆ Update()

template<typename TSample >

virtual void itk::Statistics::MixtureModelComponentBase< TSample >::Update ( )

virtual

Member Data Documentation

◆ m_MembershipFunction

template<typename TSample >

MembershipFunctionType* itk::Statistics::MixtureModelComponentBase< TSample >::m_MembershipFunction {}

private

SmartPointer to the membership function - usually density function

Definition at line 167 of file itkMixtureModelComponentBase.h.

◆ m_MinimalParametersChange

template<typename TSample >

double itk::Statistics::MixtureModelComponentBase< TSample >::m_MinimalParametersChange {}

private

Definition at line 162 of file itkMixtureModelComponentBase.h.

◆ m_Parameters

template<typename TSample >

ParametersType itk::Statistics::MixtureModelComponentBase< TSample >::m_Parameters {}

private

Definition at line 164 of file itkMixtureModelComponentBase.h.

◆ m_ParametersModified

template<typename TSample >

bool itk::Statistics::MixtureModelComponentBase< TSample >::m_ParametersModified {}

private

indicative flag of membership function's parameter changes

Definition at line 173 of file itkMixtureModelComponentBase.h.

◆ m_Sample

template<typename TSample >

const TSample* itk::Statistics::MixtureModelComponentBase< TSample >::m_Sample {}

private

target sample data pointer

Definition at line 160 of file itkMixtureModelComponentBase.h.

◆ m_Weights

template<typename TSample >

WeightArrayType itk::Statistics::MixtureModelComponentBase< TSample >::m_Weights {}

private

weights array

Definition at line 170 of file itkMixtureModelComponentBase.h.

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

itkMixtureModelComponentBase.h

Detailed Description

template<typename TSample> class itk::Statistics::MixtureModelComponentBase< TSample >

Public Types

Public Member Functions

Protected Member Functions

Private Attributes

Additional Inherited Members

Member Typedef Documentation

◆ ConstPointer

◆ MeasurementVectorSizeType

◆ MeasurementVectorType

◆ MembershipFunctionType

◆ ParametersType

◆ Pointer

◆ Self

◆ Superclass

◆ WeightArrayType

Constructor & Destructor Documentation

◆ MixtureModelComponentBase()

◆ ~MixtureModelComponentBase()

Member Function Documentation

◆ AreParametersModified() [1/2]

◆ AreParametersModified() [2/2]

◆ Evaluate()

◆ GenerateData()

◆ GetFullParameters()

◆ GetMembershipFunction()

◆ GetMinimalParametersChange()

◆ GetNameOfClass()

◆ GetSample()

◆ GetWeight()

◆ GetWeights()

◆ PrintSelf()

◆ SetMembershipFunction()

◆ SetMinimalParametersChange()

◆ SetParameters()

◆ SetSample()

◆ SetWeight()

◆ Update()

Member Data Documentation

◆ m_MembershipFunction

◆ m_MinimalParametersChange

◆ m_Parameters

◆ m_ParametersModified

◆ m_Sample

◆ m_Weights

template<typename TSample>
class itk::Statistics::MixtureModelComponentBase< TSample >