#include <elxSimultaneousPerturbation.h>

Detailed Description

template<class TElastix>
class elastix::SimultaneousPerturbation< TElastix >

An optimizer based on the itk::SPSAOptimizer.

The ITK doxygen help gives more information about this optimizer.

This optimizer supports the NewSamplesEveryIteration parameter.

The parameters used in this class are:

Optimizer: Select this optimizer as follows:
(Optimizer "SimultaneousPerturbation")

MaximumNumberOfIterations: The maximum number of iterations in each resolution.
example: (MaximumNumberOfIterations 100 100 50)
Default value: 500.

NumberOfPerturbations: The number of perturbation used to construct a gradient estimate $g_k$ .
$q =$ NumberOfPerturbations
$g_k = 1/q \sum_{j = 1..q} g^(j)_k$
This parameter can be defined for each resolution.
example: (NumberOfPerturbations 1 1 2)
Default value: 1.

SP_a: The gain $a(k)$ at each iteration $k$ is defined by
$a(k) = SP\_a / (SP\_A + k + 1)^{SP\_alpha}$ .
SP_a can be defined for each resolution.
example: (SP_a 3200.0 3200.0 1600.0)
The default value is 400.0. Tuning this variable for you specific problem is recommended.

SP_A: The gain $a(k)$ at each iteration $k$ is defined by
$a(k) = SP\_a / (SP\_A + k + 1)^{SP\_alpha}$ .
SP_A can be defined for each resolution.
example: (SP_A 50.0 50.0 100.0)
The default/recommended value is 50.0.

SP_alpha: The gain $a(k)$ at each iteration $k$ is defined by
$a(k) = SP\_a / (SP\_A + k + 1)^{SP\_alpha}$ .
SP_alpha can be defined for each resolution.
example: (SP_alpha 0.602 0.602 0.602)
The default/recommended value is 0.602.

SP_c: The perturbation step size $c(k)$ at each iteration $k$ is defined by
$c(k) = SP\_c / ( k + 1)^{SP\_gamma}$ .
SP_c can be defined for each resolution.
example: (SP_c 2.0 1.0 1.0)
The default value is 1.0.

SP_gamma: The perturbation step size $c(k)$ at each iteration $k$ is defined by
$c(k) = SP\_c / ( k + 1)^{SP\_gamma}$ .
SP_gamma can be defined for each resolution.
example: (SP_gamma 0.101 0.101 0.101)
The default/recommended value is 0.101.

ShowMetricValues: Defines whether to compute/show the metric value in each iteration.
This flag can NOT be defined for each resolution.
example: (ShowMetricValues "true" )
Default value: "false". Note that turning this flag on increases computation time.

Definition at line 83 of file elxSimultaneousPerturbation.h.

Inheritance diagram for elastix::SimultaneousPerturbation< TElastix >:

[legend]

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

using	ITKBaseType = typename Superclass2::ITKBaseType

using	Pointer = itk::SmartPointer<Self>

using	Self = SimultaneousPerturbation

using	Superclass1 = SPSAOptimizer

using	Superclass2 = OptimizerBase<TElastix>

Public Types inherited from elastix::OptimizerBase< TElastix >
using	ElastixType

using	ITKBaseType = itk::Optimizer

using	ParametersType = typename ITKBaseType::ParametersType

using	RegistrationType

using	Self = OptimizerBase

using	Superclass = BaseComponentSE<TElastix>

Public Types inherited from elastix::BaseComponentSE< TElastix >
using	ElastixType = TElastix

using	RegistrationType = typename ElastixType::RegistrationBaseType

using	Self = BaseComponentSE

using	Superclass = BaseComponent

Public Member Functions
void	AfterEachIteration () override

void	AfterEachResolution () override

void	AfterRegistration () override

void	BeforeEachResolution () override

void	BeforeRegistration () override

	elxClassNameMacro ("SimultaneousPerturbation")

virtual const char *	GetClassName () const

	ITK_DISALLOW_COPY_AND_MOVE (SimultaneousPerturbation)

void	SetInitialPosition (const ParametersType &param) override

Public Member Functions inherited from elastix::OptimizerBase< TElastix >
void	AfterRegistrationBase () override

void	BeforeEachResolutionBase () override

ITKBaseType *	GetAsITKBaseType ()

const ITKBaseType *	GetAsITKBaseType () const

	ITK_DISALLOW_COPY_AND_MOVE (OptimizerBase)

virtual void	SetCurrentPositionPublic (const ParametersType &param)

virtual void	SetSinusScales (double amplitude, double frequency, unsigned long numberOfParameters)

Public Member Functions inherited from elastix::BaseComponentSE< TElastix >
void	AddTargetCellToIterationInfo (const char *const name)

const Configuration *	GetConfiguration () const

ElastixType *	GetElastix () const

auto &	GetIterationInfoAt (const char *const name)

RegistrationType *	GetRegistration () const

	ITK_DISALLOW_COPY_AND_MOVE (BaseComponentSE)

void	RemoveTargetCellFromIterationInfo (const char *const name)

void	SetConfiguration (const Configuration *_arg)

void	SetElastix (ElastixType *_arg)

Public Member Functions inherited from elastix::BaseComponent
virtual void	AfterEachIterationBase ()

virtual void	AfterEachResolutionBase ()

virtual int	BeforeAll ()

virtual int	BeforeAllBase ()

virtual void	BeforeRegistrationBase ()

virtual const char *	elxGetClassName () const

const char *	GetComponentLabel () const

	ITK_DISALLOW_COPY_AND_MOVE (BaseComponent)

	itkTypeMacroNoParent (BaseComponent)

void	SetComponentLabel (const char *label, unsigned int idx)

Static Public Member Functions
static Pointer	New ()

Static Public Member Functions inherited from elastix::BaseComponent
template<typename TBaseComponent >
static auto	AsITKBaseType (TBaseComponent *const baseComponent) -> decltype(baseComponent->GetAsITKBaseType())

static void	InitializeElastixExecutable ()

static bool	IsElastixLibrary ()

Protected Member Functions
	SimultaneousPerturbation ()

	~SimultaneousPerturbation () override=default

Protected Member Functions inherited from elastix::OptimizerBase< TElastix >
virtual bool	GetNewSamplesEveryIteration () const

	OptimizerBase ()=default

virtual void	SelectNewSamples ()

	~OptimizerBase () override=default

Protected Member Functions inherited from elastix::BaseComponentSE< TElastix >
	BaseComponentSE ()=default

	~BaseComponentSE () override=default

Protected Member Functions inherited from elastix::BaseComponent
	BaseComponent ()=default

virtual	~BaseComponent ()=default

Protected Attributes
bool	m_ShowMetricValues

Protected Attributes inherited from elastix::BaseComponentSE< TElastix >
Configuration::ConstPointer	m_Configuration {}

itk::WeakPointer< TElastix >	m_Elastix {}

RegistrationType *	m_Registration {}

Private Attributes
	elxOverrideGetSelfMacro

Additional Inherited Members
Protected Types inherited from elastix::OptimizerBase< TElastix >
using	SettingsVectorType = typename std::vector<SettingsType>

Static Protected Member Functions inherited from elastix::OptimizerBase< TElastix >
static void	PrintSettingsVector (const SettingsVectorType &settings)

Member Typedef Documentation

◆ ConstPointer

template<class TElastix >

using elastix::SimultaneousPerturbation< TElastix >::ConstPointer = itk::SmartPointer<const Self>

Definition at line 95 of file elxSimultaneousPerturbation.h.

◆ ITKBaseType

template<class TElastix >

using elastix::SimultaneousPerturbation< TElastix >::ITKBaseType = typename Superclass2::ITKBaseType

Definition at line 116 of file elxSimultaneousPerturbation.h.

◆ Pointer

template<class TElastix >

using elastix::SimultaneousPerturbation< TElastix >::Pointer = itk::SmartPointer<Self>

Definition at line 94 of file elxSimultaneousPerturbation.h.

◆ Self

template<class TElastix >

using elastix::SimultaneousPerturbation< TElastix >::Self = SimultaneousPerturbation

Standard ITK.

Definition at line 91 of file elxSimultaneousPerturbation.h.

◆ Superclass1

template<class TElastix >

using elastix::SimultaneousPerturbation< TElastix >::Superclass1 = SPSAOptimizer

Definition at line 92 of file elxSimultaneousPerturbation.h.

◆ Superclass2

template<class TElastix >

using elastix::SimultaneousPerturbation< TElastix >::Superclass2 = OptimizerBase<TElastix>

Definition at line 93 of file elxSimultaneousPerturbation.h.

Constructor & Destructor Documentation

◆ SimultaneousPerturbation()

template<class TElastix >

elastix::SimultaneousPerturbation< TElastix >::SimultaneousPerturbation ( )

protected

◆ ~SimultaneousPerturbation()

template<class TElastix >

elastix::SimultaneousPerturbation< TElastix >::~SimultaneousPerturbation ( )

overrideprotecteddefault

Member Function Documentation

◆ AfterEachIteration()

template<class TElastix >

void elastix::SimultaneousPerturbation< TElastix >::AfterEachIteration ( )

overridevirtual

Reimplemented from elastix::BaseComponent.

◆ AfterEachResolution()

template<class TElastix >

void elastix::SimultaneousPerturbation< TElastix >::AfterEachResolution ( )

overridevirtual

Reimplemented from elastix::BaseComponent.

◆ AfterRegistration()

template<class TElastix >

void elastix::SimultaneousPerturbation< TElastix >::AfterRegistration ( )

overridevirtual

Reimplemented from elastix::BaseComponent.

◆ BeforeEachResolution()

template<class TElastix >

void elastix::SimultaneousPerturbation< TElastix >::BeforeEachResolution ( )

overridevirtual

Reimplemented from elastix::BaseComponent.

◆ BeforeRegistration()

template<class TElastix >

void elastix::SimultaneousPerturbation< TElastix >::BeforeRegistration ( )

overridevirtual

Methods that take care of setting parameters and printing progress information.

Reimplemented from elastix::BaseComponent.

◆ elxClassNameMacro()

template<class TElastix >

elastix::SimultaneousPerturbation< TElastix >::elxClassNameMacro ( "SimultaneousPerturbation< TElastix >" )

Name of this class. Use this name in the parameter file to select this specific optimizer.
example: (Optimizer "SimultaneousPerturbation")

◆ GetClassName()

template<class TElastix >

virtual const char * elastix::SimultaneousPerturbation< TElastix >::GetClassName ( ) const

virtual

Run-time type information (and related methods).

Reimplemented from elastix::OptimizerBase< TElastix >.

◆ ITK_DISALLOW_COPY_AND_MOVE()

template<class TElastix >

elastix::SimultaneousPerturbation< TElastix >::ITK_DISALLOW_COPY_AND_MOVE ( SimultaneousPerturbation< TElastix > )

◆ New()

template<class TElastix >

static Pointer elastix::SimultaneousPerturbation< TElastix >::New ( )

static

Method for creation through the object factory.

◆ SetInitialPosition()

template<class TElastix >

void elastix::SimultaneousPerturbation< TElastix >::SetInitialPosition ( const ParametersType & param )

override

Override the SetInitialPosition. Override the implementation in itkOptimizer.h, to ensure that the scales array and the parameters array have the same size.

Field Documentation

◆ elxOverrideGetSelfMacro

template<class TElastix >

elastix::SimultaneousPerturbation< TElastix >::elxOverrideGetSelfMacro

private

Definition at line 151 of file elxSimultaneousPerturbation.h.

◆ m_ShowMetricValues

template<class TElastix >

bool elastix::SimultaneousPerturbation< TElastix >::m_ShowMetricValues

protected

Definition at line 148 of file elxSimultaneousPerturbation.h.

Detailed Description

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Private Attributes

Additional Inherited Members

Member Typedef Documentation

◆ ConstPointer

◆ ITKBaseType

◆ Pointer

◆ Self

◆ Superclass1

◆ Superclass2

Constructor & Destructor Documentation

◆ SimultaneousPerturbation()

◆ ~SimultaneousPerturbation()

Member Function Documentation

◆ AfterEachIteration()

◆ AfterEachResolution()

◆ AfterRegistration()

◆ BeforeEachResolution()

◆ BeforeRegistration()

◆ elxClassNameMacro()

◆ GetClassName()

◆ ITK_DISALLOW_COPY_AND_MOVE()

◆ New()

◆ SetInitialPosition()

Field Documentation

◆ elxOverrideGetSelfMacro

◆ m_ShowMetricValues