#include <itkConjugateGradientLineSearchOptimizerv4.h>

Inheritance diagram for itk::ConjugateGradientLineSearchOptimizerv4:

Collaboration diagram for itk::ConjugateGradientLineSearchOptimizerv4:

Detailed Description

Conjugate gradient descent optimizer with a golden section line search for nonlinear optimization.

ConjugateGradientLineSearchOptimizer implements a conjugate gradient descent optimizer that is followed by a line search to find the best value for the learning rate. At each iteration the current position is updated according to

$p_{n+1} = p_n + \mbox{learningRateByGoldenSectionLineSearch} \, d$

where d is defined as the Polak-Ribiere conjugate gradient.

Options are identical to the superclass's.

Definition at line 46 of file itkConjugateGradientLineSearchOptimizerv4.h.

Public Types
typedef SmartPointer< const Self >	ConstPointer

typedef itk::Function::WindowConvergenceMonitoringFunction < double >	ConvergenceMonitoringType

typedef Superclass::DerivativeType	DerivativeType

typedef Superclass::InternalComputationValueType	InternalComputationValueType

typedef Superclass::MeasureType	MeasureType

typedef SmartPointer< Self >	Pointer

typedef ConjugateGradientLineSearchOptimizerv4	Self

typedef GradientDescentOptimizerv4	Superclass

Public Types inherited from itk::GradientDescentLineSearchOptimizerv4
typedef SmartPointer< const Self >	ConstPointer

typedef itk::Function::WindowConvergenceMonitoringFunction < double >	ConvergenceMonitoringType

typedef Superclass::DerivativeType	DerivativeType

typedef Superclass::InternalComputationValueType	InternalComputationValueType

typedef Superclass::MeasureType	MeasureType

typedef SmartPointer< Self >	Pointer

typedef GradientDescentLineSearchOptimizerv4	Self

typedef GradientDescentOptimizerv4	Superclass

Public Types inherited from itk::GradientDescentOptimizerv4
typedef SmartPointer< const Self >	ConstPointer

typedef itk::Function::WindowConvergenceMonitoringFunction < double >	ConvergenceMonitoringType

typedef Superclass::DerivativeType	DerivativeType

typedef Superclass::InternalComputationValueType	InternalComputationValueType

typedef Superclass::MeasureType	MeasureType

typedef SmartPointer< Self >	Pointer

typedef GradientDescentOptimizerv4	Self

typedef GradientDescentOptimizerBasev4	Superclass

Public Types inherited from itk::GradientDescentOptimizerBasev4
typedef SmartPointer< const Self >	ConstPointer

typedef MetricType::DerivativeType	DerivativeType

typedef Superclass::InternalComputationValueType	InternalComputationValueType

typedef Superclass::MeasureType	MeasureType

typedef Superclass::MetricType	MetricType

typedef MetricType::Pointer	MetricTypePointer

typedef SmartPointer< Self >	Pointer

typedef GradientDescentOptimizerBasev4	Self

typedef std::ostringstream	StopConditionDescriptionType

typedef std::string	StopConditionReturnStringType

enum	StopConditionType { MAXIMUM_NUMBER_OF_ITERATIONS, COSTFUNCTION_ERROR, UPDATE_PARAMETERS_ERROR, STEP_TOO_SMALL, QUASI_NEWTON_STEP_ERROR, CONVERGENCE_CHECKER_PASSED, OTHER_ERROR }

typedef ObjectToObjectOptimizerBase	Superclass

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

typedef MetricType::InternalComputationValueType	InternalComputationValueType

typedef MetricType::MeasureType	MeasureType

typedef ObjectToObjectMetricBase	MetricType

typedef MetricType::Pointer	MetricTypePointer

typedef MetricType::NumberOfParametersType	NumberOfParametersType

typedef OptimizerParameters < double >	ParametersType

typedef SmartPointer< Self >	Pointer

typedef OptimizerParameters < double >	ScalesType

typedef ObjectToObjectOptimizerBase	Self

typedef Object	Superclass

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

typedef SmartPointer< Self >	Pointer

typedef Object	Self

typedef LightObject	Superclass

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

typedef SmartPointer< Self >	Pointer

typedef LightObject	Self

Public Member Functions
virtual ::itk::LightObject::Pointer	CreateAnother (void) const

virtual const char *	GetNameOfClass () const

virtual void	StartOptimization (bool doOnlyInitialization=false)

Public Member Functions inherited from itk::GradientDescentLineSearchOptimizerv4
virtual ::itk::LightObject::Pointer	CreateAnother (void) const

virtual void	SetEpsilon (InternalComputationValueType _arg)

virtual InternalComputationValueType	GetEpsilon ()

virtual void	SetLowerLimit (InternalComputationValueType _arg)

virtual InternalComputationValueType	GetLowerLimit ()

virtual void	SetUpperLimit (InternalComputationValueType _arg)

virtual InternalComputationValueType	GetUpperLimit ()

virtual void	SetMaximumLineSearchIterations (unsigned int _arg)

virtual unsigned int	GetMaximumLineSearchIterations ()

Public Member Functions inherited from itk::GradientDescentOptimizerv4
virtual ::itk::LightObject::Pointer	CreateAnother (void) const

virtual void	EstimateLearningRate ()

virtual const InternalComputationValueType &	GetConvergenceValue ()

virtual const InternalComputationValueType &	GetLearningRate ()

virtual const InternalComputationValueType &	GetMaximumStepSizeInPhysicalUnits ()

virtual void	ResumeOptimization ()

virtual void	SetConvergenceWindowSize (SizeValueType _arg)

virtual void	SetLearningRate (InternalComputationValueType _arg)

virtual void	SetMaximumStepSizeInPhysicalUnits (InternalComputationValueType _arg)

virtual void	SetMinimumConvergenceValue (InternalComputationValueType _arg)

virtual void	SetScalesEstimator (OptimizerParameterScalesEstimator *_arg)

virtual void	StopOptimization (void)

virtual void	SetDoEstimateScales (bool _arg)

virtual const bool &	GetDoEstimateScales ()

virtual void	DoEstimateScalesOn ()

virtual void	DoEstimateScalesOff ()

virtual void	SetDoEstimateLearningRateAtEachIteration (bool _arg)

virtual const bool &	GetDoEstimateLearningRateAtEachIteration ()

virtual void	DoEstimateLearningRateAtEachIterationOn ()

virtual void	DoEstimateLearningRateAtEachIterationOff ()

virtual void	SetDoEstimateLearningRateOnce (bool _arg)

virtual const bool &	GetDoEstimateLearningRateOnce ()

virtual void	DoEstimateLearningRateOnceOn ()

virtual void	DoEstimateLearningRateOnceOff ()

virtual void	SetReturnBestParametersAndValue (bool _arg)

virtual const bool &	GetReturnBestParametersAndValue ()

virtual void	ReturnBestParametersAndValueOn ()

virtual void	ReturnBestParametersAndValueOff ()

Public Member Functions inherited from itk::GradientDescentOptimizerBasev4
virtual SizeValueType	GetCurrentIteration () const

virtual const DerivativeType &	GetGradient ()

virtual const SizeValueType &	GetNumberOfIterations ()

virtual const StopConditionType &	GetStopCondition ()

virtual const StopConditionReturnStringType	GetStopConditionDescription () const

virtual void	SetNumberOfIterations (SizeValueType _arg)

virtual void	ModifyGradientByScales ()

virtual void	ModifyGradientByLearningRate ()

Public Member Functions inherited from itk::ObjectToObjectOptimizerBase
virtual const MeasureType &	GetCurrentMetricValue ()

const ParametersType &	GetCurrentPosition ()

virtual const ThreadIdType &	GetNumberOfThreads ()

virtual const ScalesType &	GetScales ()

virtual const bool &	GetScalesAreIdentity ()

const MeasureType &	GetValue ()

virtual const ScalesType &	GetWeights ()

virtual const bool &	GetWeightsAreIdentity ()

virtual void	SetNumberOfThreads (ThreadIdType number)

virtual void	SetScales (ScalesType _arg)

virtual void	SetWeights (ScalesType _arg)

virtual MetricType *	GetMetric ()

virtual void	SetMetric (MetricType *_arg)

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

unsigned long	AddObserver (const EventObject &event, Command *) const

virtual void	DebugOff () const

virtual void	DebugOn () const

Command *	GetCommand (unsigned long tag)

bool	GetDebug () const

MetaDataDictionary &	GetMetaDataDictionary (void)

const MetaDataDictionary &	GetMetaDataDictionary (void) 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

virtual void	Register () const

void	RemoveAllObservers ()

void	RemoveObserver (unsigned long tag)

void	SetDebug (bool debugFlag) const

void	SetMetaDataDictionary (const MetaDataDictionary &rhs)

virtual void	SetReferenceCount (int)

virtual void	UnRegister () const

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

Static Public Member Functions
static Pointer	New ()

Static Public Member Functions inherited from itk::GradientDescentLineSearchOptimizerv4
static Pointer	New ()

Static Public Member Functions inherited from itk::GradientDescentOptimizerv4
static Pointer	New ()

Protected Member Functions
virtual void	AdvanceOneStep (void)

	ConjugateGradientLineSearchOptimizerv4 ()

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

virtual	~ConjugateGradientLineSearchOptimizerv4 ()

Protected Member Functions inherited from itk::GradientDescentLineSearchOptimizerv4
InternalComputationValueType	GoldenSectionSearch (InternalComputationValueType a, InternalComputationValueType b, InternalComputationValueType c)

	GradientDescentLineSearchOptimizerv4 ()

virtual	~GradientDescentLineSearchOptimizerv4 ()

Protected Member Functions inherited from itk::GradientDescentOptimizerv4
	GradientDescentOptimizerv4 ()

virtual	~GradientDescentOptimizerv4 ()

virtual void	ModifyGradientByScalesOverSubRange (const IndexRangeType &subrange)

virtual void	ModifyGradientByLearningRateOverSubRange (const IndexRangeType &subrange)

Protected Member Functions inherited from itk::GradientDescentOptimizerBasev4
	GradientDescentOptimizerBasev4 ()

virtual	~GradientDescentOptimizerBasev4 ()

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

virtual	~ObjectToObjectOptimizerBase ()

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

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

virtual void	SetTimeStamp (const TimeStamp &time)

virtual	~Object ()

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
	ConjugateGradientLineSearchOptimizerv4 (const Self &)

void	operator= (const Self &)

Private Attributes
DerivativeType	m_ConjugateGradient

DerivativeType	m_LastGradient

Additional Inherited Members
Protected Types inherited from itk::GradientDescentOptimizerBasev4
typedef GradientDescentOptimizerBasev4ModifyGradientByScalesThreader::IndexRangeType	IndexRangeType

Protected Attributes inherited from itk::GradientDescentLineSearchOptimizerv4
InternalComputationValueType	m_Epsilon

unsigned int	m_LineSearchIterations

InternalComputationValueType	m_LowerLimit

unsigned int	m_MaximumLineSearchIterations

InternalComputationValueType	m_Phi

InternalComputationValueType	m_Resphi

InternalComputationValueType	m_UpperLimit

Member Typedef Documentation

typedef SmartPointer< const Self > itk::ConjugateGradientLineSearchOptimizerv4::ConstPointer

Definition at line 54 of file itkConjugateGradientLineSearchOptimizerv4.h.

typedef itk::Function::WindowConvergenceMonitoringFunction<double> itk::ConjugateGradientLineSearchOptimizerv4::ConvergenceMonitoringType

Type for the convergence checker

Definition at line 70 of file itkConjugateGradientLineSearchOptimizerv4.h.

typedef Superclass::DerivativeType itk::ConjugateGradientLineSearchOptimizerv4::DerivativeType

Derivative type

Definition at line 60 of file itkConjugateGradientLineSearchOptimizerv4.h.

typedef Superclass::InternalComputationValueType itk::ConjugateGradientLineSearchOptimizerv4::InternalComputationValueType

Definition at line 67 of file itkConjugateGradientLineSearchOptimizerv4.h.

typedef Superclass::MeasureType itk::ConjugateGradientLineSearchOptimizerv4::MeasureType

Metric type over which this class is templated

Definition at line 66 of file itkConjugateGradientLineSearchOptimizerv4.h.

typedef SmartPointer< Self > itk::ConjugateGradientLineSearchOptimizerv4::Pointer

Definition at line 53 of file itkConjugateGradientLineSearchOptimizerv4.h.

typedef ConjugateGradientLineSearchOptimizerv4 itk::ConjugateGradientLineSearchOptimizerv4::Self

Standard class typedefs.

Definition at line 51 of file itkConjugateGradientLineSearchOptimizerv4.h.

typedef GradientDescentOptimizerv4 itk::ConjugateGradientLineSearchOptimizerv4::Superclass

Definition at line 52 of file itkConjugateGradientLineSearchOptimizerv4.h.

Constructor & Destructor Documentation

itk::ConjugateGradientLineSearchOptimizerv4::ConjugateGradientLineSearchOptimizerv4 ( )

protected

Default constructor

virtual itk::ConjugateGradientLineSearchOptimizerv4::~ConjugateGradientLineSearchOptimizerv4 ( )

protectedvirtual

Destructor

itk::ConjugateGradientLineSearchOptimizerv4::ConjugateGradientLineSearchOptimizerv4 ( const Self & )

private

Member Function Documentation

virtual void itk::ConjugateGradientLineSearchOptimizerv4::AdvanceOneStep ( void )

protectedvirtual

Advance one Step following the gradient direction. Includes transform update.

Reimplemented from itk::GradientDescentLineSearchOptimizerv4.

virtual::itk::LightObject::Pointer itk::ConjugateGradientLineSearchOptimizerv4::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::Object.

virtual const char* itk::ConjugateGradientLineSearchOptimizerv4::GetNameOfClass ( ) const

virtual

Run-time type information (and related methods).

Reimplemented from itk::GradientDescentLineSearchOptimizerv4.

static Pointer itk::ConjugateGradientLineSearchOptimizerv4::New ( )

static

New macro for creation of through a Smart Pointer

void itk::ConjugateGradientLineSearchOptimizerv4::operator= ( const Self & )

private

virtual void itk::ConjugateGradientLineSearchOptimizerv4::PrintSelf	(	std::ostream &	os,
		Indent	indent
	)		const

protectedvirtual

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::GradientDescentLineSearchOptimizerv4.

virtual void itk::ConjugateGradientLineSearchOptimizerv4::StartOptimization ( bool doOnlyInitialization = false )

virtual

Start and run the optimization

Reimplemented from itk::GradientDescentOptimizerv4.