ITK  4.8.0
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itk::PowellOptimizerv4< TInternalComputationValueType > Class Template Reference

#include <itkPowellOptimizerv4.h>

+ Inheritance diagram for itk::PowellOptimizerv4< TInternalComputationValueType >:
+ Collaboration diagram for itk::PowellOptimizerv4< TInternalComputationValueType >:

Detailed Description

template<typename TInternalComputationValueType>
class itk::PowellOptimizerv4< TInternalComputationValueType >

Implements Powell optimization using Brent line search.

The code in this class was adapted from the Wikipedia and the netlib.org zeroin function.

http://www.netlib.org/go/zeroin.f http://en.wikipedia.org/wiki/Brent_method http://en.wikipedia.org/wiki/Golden_section_search

This optimizer needs a cost function. Partial derivatives of that function are not required.

For an N-dimensional parameter space, each iteration minimizes the function in N (initially orthogonal) directions. Typically only 2-5 iterations are required. If gradients are available, consider a conjugate gradient line search strategy.

The SetStepLength determines the initial distance to step in a line direction when bounding the minimum (using bracketing triple spaced using a golden search strategy).

The StepTolerance terminates optimization when the parameter values are known to be within this (scaled) distance of the local extreme.

The ValueTolerance terminates optimization when the cost function values at the current parameters and at the local extreme are likely (within a second order approximation) to be within this is tolerance.

Definition at line 59 of file itkPowellOptimizerv4.h.

Public Types

typedef SmartPointer< const SelfConstPointer
 
typedef Superclass::MeasureType MeasureType
 
typedef Superclass::ParametersType ParametersType
 
typedef SmartPointer< SelfPointer
 
typedef Superclass::ScalesType ScalesType
 
typedef PowellOptimizerv4 Self
 
typedef
ObjectToObjectOptimizerBaseTemplate
< TInternalComputationValueType > 
Superclass
 
- Public Types inherited from itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >
typedef SmartPointer< const SelfConstPointer
 
typedef MetricType::DerivativeType DerivativeType
 
typedef MetricType::MeasureType MeasureType
 
typedef
ObjectToObjectMetricBaseTemplate
< TInternalComputationValueType > 
MetricType
 
typedef MetricType::Pointer MetricTypePointer
 
typedef
MetricType::NumberOfParametersType 
NumberOfParametersType
 
typedef OptimizerParameters
< TInternalComputationValueType > 
ParametersType
 
typedef SmartPointer< SelfPointer
 
typedef
OptimizerParameterScalesEstimatorTemplate
< TInternalComputationValueType > 
ScalesEstimatorType
 
typedef OptimizerParameters
< TInternalComputationValueType > 
ScalesType
 
typedef
ObjectToObjectOptimizerBaseTemplate 
Self
 
typedef std::ostringstream StopConditionDescriptionType
 
typedef std::string StopConditionReturnStringType
 
typedef Object Superclass
 
- Public Types inherited from itk::Object
typedef SmartPointer< const SelfConstPointer
 
typedef SmartPointer< SelfPointer
 
typedef Object Self
 
typedef LightObject Superclass
 
- Public Types inherited from itk::LightObject
typedef SmartPointer< const SelfConstPointer
 
typedef SmartPointer< SelfPointer
 
typedef LightObject Self
 

Public Member Functions

virtual ::itk::LightObject::Pointer CreateAnother () const
 
virtual const bool & GetCatchGetValueException () const
 
virtual const unsigned int & GetCurrentLineIteration () const
 
virtual const double & GetMetricWorstPossibleValue () const
 
virtual const char * GetNameOfClass () const
 
virtual const std::string GetStopConditionDescription () const override
 
virtual void SetCatchGetValueException (bool _arg)
 
virtual void SetMetricWorstPossibleValue (double _arg)
 
virtual void StartOptimization (bool doOnlyInitialization=false) override
 
void StopOptimization ()
 
virtual void SetMaximumIteration (unsigned int _arg)
 
virtual const unsigned int & GetMaximumIteration () const
 
virtual void SetMaximumLineIteration (unsigned int _arg)
 
virtual unsigned int GetMaximumLineIteration () const
 
virtual void SetStepLength (double _arg)
 
virtual const double & GetStepLength () const
 
virtual void SetStepTolerance (double _arg)
 
virtual const double & GetStepTolerance () const
 
virtual void SetValueTolerance (double _arg)
 
virtual const double & GetValueTolerance () const
 
virtual const MeasureTypeGetCurrentCost () const
 
virtual const MeasureTypeGetValue () const override
 
- Public Member Functions inherited from itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >
virtual SizeValueType GetCurrentIteration () const
 
virtual const MeasureTypeGetCurrentMetricValue () const
 
virtual const ParametersTypeGetCurrentPosition () const
 
virtual SizeValueType GetNumberOfIterations () const
 
virtual const ThreadIdTypeGetNumberOfThreads () const
 
virtual const ScalesTypeGetScales () const
 
virtual const bool & GetScalesAreIdentity () const
 
bool GetScalesInitialized () const
 
virtual const ScalesTypeGetWeights () const
 
virtual const bool & GetWeightsAreIdentity () const
 
virtual void SetNumberOfIterations (SizeValueType _arg)
 
virtual void SetNumberOfThreads (ThreadIdType number)
 
virtual void SetScalesEstimator (ScalesEstimatorType *_arg)
 
virtual void SetWeights (ScalesType _arg)
 
virtual void SetMetric (MetricType *_arg)
 
virtual MetricTypeGetModifiableMetric ()
 
virtual const MetricTypeGetMetric () const
 
virtual void SetScales (const ScalesType &scales)
 
virtual void SetDoEstimateScales (bool _arg)
 
virtual const bool & GetDoEstimateScales () const
 
virtual void DoEstimateScalesOn ()
 
virtual void DoEstimateScalesOff ()
 
- 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
 
CommandGetCommand (unsigned long tag)
 
bool GetDebug () const
 
MetaDataDictionaryGetMetaDataDictionary ()
 
const MetaDataDictionaryGetMetaDataDictionary () const
 
virtual ModifiedTimeType GetMTime () const
 
virtual const TimeStampGetTimeStamp () const
 
bool HasObserver (const EventObject &event) const
 
void InvokeEvent (const EventObject &)
 
void InvokeEvent (const EventObject &) const
 
virtual void Modified () const
 
virtual void Register () const override
 
void RemoveAllObservers ()
 
void RemoveObserver (unsigned long tag)
 
void SetDebug (bool debugFlag) const
 
void SetMetaDataDictionary (const MetaDataDictionary &rhs)
 
virtual void SetReferenceCount (int) override
 
virtual void UnRegister () const noexceptoverride
 
virtual void SetObjectName (std::string _arg)
 
virtual const std::string & GetObjectName () 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::Object
static bool GetGlobalWarningDisplay ()
 
static void GlobalWarningDisplayOff ()
 
static void GlobalWarningDisplayOn ()
 
static Pointer New ()
 
static void SetGlobalWarningDisplay (bool flag)
 
- Static Public Member Functions inherited from itk::LightObject
static void BreakOnError ()
 
static Pointer New ()
 

Protected Member Functions

virtual void BracketedLineOptimize (double ax, double bx, double cx, double fa, double fb, double fc, double *extX, double *extVal)
 
virtual void BracketedLineOptimize (double ax, double bx, double cx, double fa, double fb, double fc, double *extX, double *extVal, ParametersType &tempCoord)
 
double GetLineValue (double x) const
 
double GetLineValue (double x, ParametersType &tempCoord) const
 
virtual unsigned int GetSpaceDimension ()
 
virtual bool GetStop ()
 
virtual void LineBracket (double *ax, double *bx, double *cx, double *fa, double *fb, double *fc)
 
virtual void LineBracket (double *ax, double *bx, double *cx, double *fa, double *fb, double *fc, ParametersType &tempCoord)
 
 PowellOptimizerv4 ()
 
 PowellOptimizerv4 (const PowellOptimizerv4 &)
 
virtual void PrintSelf (std::ostream &os, Indent indent) const override
 
virtual void SetCurrentCost (double _arg)
 
virtual void SetCurrentIteration (unsigned int _arg)
 
void SetCurrentLinePoint (double x, double fx)
 
void SetLine (const ParametersType &origin, const vnl_vector< double > &direction)
 
void SetSpaceDimension (unsigned int dim)
 
virtual void SetStop (bool _arg)
 
void Shift (double *a, double *b, double *c, double d) const
 
void Swap (double *a, double *b) const
 
virtual ~PowellOptimizerv4 ()
 
- Protected Member Functions inherited from itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >
 ObjectToObjectOptimizerBaseTemplate ()
 
virtual ~ObjectToObjectOptimizerBaseTemplate ()
 
- 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 Attributes

bool m_CatchGetValueException
 
MeasureType m_CurrentCost
 
unsigned int m_CurrentLineIteration
 
ParametersType m_CurrentPosition
 
vnl_vector< double > m_LineDirection
 
ParametersType m_LineOrigin
 
unsigned int m_MaximumIteration
 
unsigned int m_MaximumLineIteration
 
double m_MetricWorstPossibleValue
 
unsigned int m_SpaceDimension
 
double m_StepLength
 
double m_StepTolerance
 
bool m_Stop
 
std::ostringstream m_StopConditionDescription
 
double m_ValueTolerance
 

Additional Inherited Members

- Protected Attributes inherited from itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >
SizeValueType m_CurrentIteration
 
MeasureType m_CurrentMetricValue
 
bool m_DoEstimateScales
 
MetricTypePointer m_Metric
 
SizeValueType m_NumberOfIterations
 
ThreadIdType m_NumberOfThreads
 
ScalesType m_Scales
 
bool m_ScalesAreIdentity
 
ScalesEstimatorType::Pointer m_ScalesEstimator
 
ScalesType m_Weights
 
bool m_WeightsAreIdentity
 
- Protected Attributes inherited from itk::LightObject
AtomicInt< int > m_ReferenceCount
 

Member Typedef Documentation

template<typename TInternalComputationValueType >
typedef SmartPointer< const Self > itk::PowellOptimizerv4< TInternalComputationValueType >::ConstPointer

Definition at line 67 of file itkPowellOptimizerv4.h.

template<typename TInternalComputationValueType >
typedef Superclass::MeasureType itk::PowellOptimizerv4< TInternalComputationValueType >::MeasureType

Definition at line 76 of file itkPowellOptimizerv4.h.

template<typename TInternalComputationValueType >
typedef Superclass::ParametersType itk::PowellOptimizerv4< TInternalComputationValueType >::ParametersType

Definition at line 73 of file itkPowellOptimizerv4.h.

template<typename TInternalComputationValueType >
typedef SmartPointer< Self > itk::PowellOptimizerv4< TInternalComputationValueType >::Pointer

Definition at line 66 of file itkPowellOptimizerv4.h.

template<typename TInternalComputationValueType >
typedef Superclass::ScalesType itk::PowellOptimizerv4< TInternalComputationValueType >::ScalesType

Definition at line 77 of file itkPowellOptimizerv4.h.

template<typename TInternalComputationValueType >
typedef PowellOptimizerv4 itk::PowellOptimizerv4< TInternalComputationValueType >::Self

Standard "Self" typedef.

Definition at line 64 of file itkPowellOptimizerv4.h.

template<typename TInternalComputationValueType >
typedef ObjectToObjectOptimizerBaseTemplate<TInternalComputationValueType> itk::PowellOptimizerv4< TInternalComputationValueType >::Superclass

Definition at line 65 of file itkPowellOptimizerv4.h.

Constructor & Destructor Documentation

template<typename TInternalComputationValueType >
itk::PowellOptimizerv4< TInternalComputationValueType >::PowellOptimizerv4 ( )
protected
template<typename TInternalComputationValueType >
itk::PowellOptimizerv4< TInternalComputationValueType >::PowellOptimizerv4 ( const PowellOptimizerv4< TInternalComputationValueType > &  )
protected
template<typename TInternalComputationValueType >
virtual itk::PowellOptimizerv4< TInternalComputationValueType >::~PowellOptimizerv4 ( )
protectedvirtual

Member Function Documentation

template<typename TInternalComputationValueType >
virtual void itk::PowellOptimizerv4< TInternalComputationValueType >::BracketedLineOptimize ( double  ax,
double  bx,
double  cx,
double  fa,
double  fb,
double  fc,
double *  extX,
double *  extVal 
)
protectedvirtual

Given a bracketing triple of points and their function values, returns a bounded extreme. These values are in parameter space, along the current line and wrt the current origin set via SetLine. Optimization terminates based on MaximumIteration, StepTolerance, or ValueTolerance. Implemented as Brent line optimers from NRC.

template<typename TInternalComputationValueType >
virtual void itk::PowellOptimizerv4< TInternalComputationValueType >::BracketedLineOptimize ( double  ax,
double  bx,
double  cx,
double  fa,
double  fb,
double  fc,
double *  extX,
double *  extVal,
ParametersType tempCoord 
)
protectedvirtual
template<typename TInternalComputationValueType >
virtual::itk::LightObject::Pointer itk::PowellOptimizerv4< TInternalComputationValueType >::CreateAnother ( ) 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.

template<typename TInternalComputationValueType >
virtual const bool& itk::PowellOptimizerv4< TInternalComputationValueType >::GetCatchGetValueException ( ) const
virtual
template<typename TInternalComputationValueType >
virtual const MeasureType& itk::PowellOptimizerv4< TInternalComputationValueType >::GetCurrentCost ( ) const
virtual
template<typename TInternalComputationValueType >
virtual const unsigned int& itk::PowellOptimizerv4< TInternalComputationValueType >::GetCurrentLineIteration ( ) const
virtual

Get the current line search iteration

template<typename TInternalComputationValueType >
double itk::PowellOptimizerv4< TInternalComputationValueType >::GetLineValue ( double  x) const
protected

Get the value of the n-dimensional cost function at this scalar step distance along the current line direction from the current line origin. Line origin and distances are set via SetLine

template<typename TInternalComputationValueType >
double itk::PowellOptimizerv4< TInternalComputationValueType >::GetLineValue ( double  x,
ParametersType tempCoord 
) const
protected
template<typename TInternalComputationValueType >
virtual const unsigned int& itk::PowellOptimizerv4< TInternalComputationValueType >::GetMaximumIteration ( ) const
virtual

Set/Get maximum iteration limit.

template<typename TInternalComputationValueType >
virtual unsigned int itk::PowellOptimizerv4< TInternalComputationValueType >::GetMaximumLineIteration ( ) const
virtual

Set/Get the maximum number of line search iterations

template<typename TInternalComputationValueType >
virtual const double& itk::PowellOptimizerv4< TInternalComputationValueType >::GetMetricWorstPossibleValue ( ) const
virtual
template<typename TInternalComputationValueType >
virtual const char* itk::PowellOptimizerv4< TInternalComputationValueType >::GetNameOfClass ( ) const
virtual

Run-time type information (and related methods).

Reimplemented from itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >.

template<typename TInternalComputationValueType >
virtual unsigned int itk::PowellOptimizerv4< TInternalComputationValueType >::GetSpaceDimension ( )
protectedvirtual
template<typename TInternalComputationValueType >
virtual const double& itk::PowellOptimizerv4< TInternalComputationValueType >::GetStepLength ( ) const
virtual

Set/Get StepLength for the (scaled) spacing of the sampling of parameter space while bracketing the extremum

template<typename TInternalComputationValueType >
virtual const double& itk::PowellOptimizerv4< TInternalComputationValueType >::GetStepTolerance ( ) const
virtual

Set/Get StepTolerance. Once the local extreme is known to be within this distance of the current parameter values, optimization terminates

template<typename TInternalComputationValueType >
virtual bool itk::PowellOptimizerv4< TInternalComputationValueType >::GetStop ( )
protectedvirtual
template<typename TInternalComputationValueType >
virtual const std::string itk::PowellOptimizerv4< TInternalComputationValueType >::GetStopConditionDescription ( ) const
overridevirtual
template<typename TInternalComputationValueType >
virtual const MeasureType& itk::PowellOptimizerv4< TInternalComputationValueType >::GetValue ( void  ) const
inlineoverridevirtual
template<typename TInternalComputationValueType >
virtual const double& itk::PowellOptimizerv4< TInternalComputationValueType >::GetValueTolerance ( ) const
virtual

Set/Get ValueTolerance. Once this current cost function value is known to be within this tolerance of the cost function value at the local extreme, optimization terminates

template<typename TInternalComputationValueType >
virtual void itk::PowellOptimizerv4< TInternalComputationValueType >::LineBracket ( double *  ax,
double *  bx,
double *  cx,
double *  fa,
double *  fb,
double *  fc 
)
protectedvirtual

The LineBracket routine from NRC. Later reimplemented from the description of the method available in the Wikipedia.

Uses current origin and line direction (from SetLine) to find a triple of points (ax, bx, cx) that bracket the extreme "near" the origin. Search first considers the point StepLength distance from ax.

IMPORTANT: The value of ax and the value of the function at ax (i.e., fa), must both be provided to this function.

template<typename TInternalComputationValueType >
virtual void itk::PowellOptimizerv4< TInternalComputationValueType >::LineBracket ( double *  ax,
double *  bx,
double *  cx,
double *  fa,
double *  fb,
double *  fc,
ParametersType tempCoord 
)
protectedvirtual
template<typename TInternalComputationValueType >
static Pointer itk::PowellOptimizerv4< TInternalComputationValueType >::New ( )
static

Method for creation through the object factory.

template<typename TInternalComputationValueType >
virtual void itk::PowellOptimizerv4< TInternalComputationValueType >::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::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >.

template<typename TInternalComputationValueType >
virtual void itk::PowellOptimizerv4< TInternalComputationValueType >::SetCatchGetValueException ( bool  _arg)
virtual
template<typename TInternalComputationValueType >
virtual void itk::PowellOptimizerv4< TInternalComputationValueType >::SetCurrentCost ( double  _arg)
protectedvirtual
template<typename TInternalComputationValueType >
virtual void itk::PowellOptimizerv4< TInternalComputationValueType >::SetCurrentIteration ( unsigned int  _arg)
protectedvirtual
template<typename TInternalComputationValueType >
void itk::PowellOptimizerv4< TInternalComputationValueType >::SetCurrentLinePoint ( double  x,
double  fx 
)
protected

Set the given scalar step distance (x) and function value (fx) as the "best-so-far" optimizer values.

template<typename TInternalComputationValueType >
void itk::PowellOptimizerv4< TInternalComputationValueType >::SetLine ( const ParametersType origin,
const vnl_vector< double > &  direction 
)
protected

Used to specify the line direction through the n-dimensional parameter space the is currently being bracketed and optimized.

template<typename TInternalComputationValueType >
virtual void itk::PowellOptimizerv4< TInternalComputationValueType >::SetMaximumIteration ( unsigned int  _arg)
virtual

Set/Get maximum iteration limit.

template<typename TInternalComputationValueType >
virtual void itk::PowellOptimizerv4< TInternalComputationValueType >::SetMaximumLineIteration ( unsigned int  _arg)
virtual

Set/Get the maximum number of line search iterations

template<typename TInternalComputationValueType >
virtual void itk::PowellOptimizerv4< TInternalComputationValueType >::SetMetricWorstPossibleValue ( double  _arg)
virtual
template<typename TInternalComputationValueType >
void itk::PowellOptimizerv4< TInternalComputationValueType >::SetSpaceDimension ( unsigned int  dim)
inlineprotected
template<typename TInternalComputationValueType >
virtual void itk::PowellOptimizerv4< TInternalComputationValueType >::SetStepLength ( double  _arg)
virtual

Set/Get StepLength for the (scaled) spacing of the sampling of parameter space while bracketing the extremum

template<typename TInternalComputationValueType >
virtual void itk::PowellOptimizerv4< TInternalComputationValueType >::SetStepTolerance ( double  _arg)
virtual

Set/Get StepTolerance. Once the local extreme is known to be within this distance of the current parameter values, optimization terminates

template<typename TInternalComputationValueType >
virtual void itk::PowellOptimizerv4< TInternalComputationValueType >::SetStop ( bool  _arg)
protectedvirtual
template<typename TInternalComputationValueType >
virtual void itk::PowellOptimizerv4< TInternalComputationValueType >::SetValueTolerance ( double  _arg)
virtual

Set/Get ValueTolerance. Once this current cost function value is known to be within this tolerance of the cost function value at the local extreme, optimization terminates

template<typename TInternalComputationValueType >
void itk::PowellOptimizerv4< TInternalComputationValueType >::Shift ( double *  a,
double *  b,
double *  c,
double  d 
) const
protected

Used in bracketing the extreme along the current line. Adapted from NRC

template<typename TInternalComputationValueType >
virtual void itk::PowellOptimizerv4< TInternalComputationValueType >::StartOptimization ( bool  doOnlyInitialization = false)
overridevirtual
template<typename TInternalComputationValueType >
void itk::PowellOptimizerv4< TInternalComputationValueType >::StopOptimization ( void  )
inline

When users call StartOptimization, this value will be set false. By calling StopOptimization, this flag will be set true, and optimization will stop at the next iteration.

Definition at line 122 of file itkPowellOptimizerv4.h.

References itk::PowellOptimizerv4< TInternalComputationValueType >::m_Stop.

template<typename TInternalComputationValueType >
void itk::PowellOptimizerv4< TInternalComputationValueType >::Swap ( double *  a,
double *  b 
) const
protected

Used in bracketing the extreme along the current line. Adapted from NRC

Member Data Documentation

template<typename TInternalComputationValueType >
bool itk::PowellOptimizerv4< TInternalComputationValueType >::m_CatchGetValueException
private

Definition at line 220 of file itkPowellOptimizerv4.h.

template<typename TInternalComputationValueType >
MeasureType itk::PowellOptimizerv4< TInternalComputationValueType >::m_CurrentCost
private

Internal storage for the value type / used as a cache

Definition at line 233 of file itkPowellOptimizerv4.h.

template<typename TInternalComputationValueType >
unsigned int itk::PowellOptimizerv4< TInternalComputationValueType >::m_CurrentLineIteration
private

Current iteration

Definition at line 214 of file itkPowellOptimizerv4.h.

template<typename TInternalComputationValueType >
ParametersType itk::PowellOptimizerv4< TInternalComputationValueType >::m_CurrentPosition
private
template<typename TInternalComputationValueType >
vnl_vector< double > itk::PowellOptimizerv4< TInternalComputationValueType >::m_LineDirection
private
template<typename TInternalComputationValueType >
ParametersType itk::PowellOptimizerv4< TInternalComputationValueType >::m_LineOrigin
private
template<typename TInternalComputationValueType >
unsigned int itk::PowellOptimizerv4< TInternalComputationValueType >::m_MaximumIteration
private

Maximum iteration limit.

Definition at line 217 of file itkPowellOptimizerv4.h.

template<typename TInternalComputationValueType >
unsigned int itk::PowellOptimizerv4< TInternalComputationValueType >::m_MaximumLineIteration
private

Definition at line 218 of file itkPowellOptimizerv4.h.

template<typename TInternalComputationValueType >
double itk::PowellOptimizerv4< TInternalComputationValueType >::m_MetricWorstPossibleValue
private

Definition at line 221 of file itkPowellOptimizerv4.h.

template<typename TInternalComputationValueType >
unsigned int itk::PowellOptimizerv4< TInternalComputationValueType >::m_SpaceDimension
private
template<typename TInternalComputationValueType >
double itk::PowellOptimizerv4< TInternalComputationValueType >::m_StepLength
private

The minimal size of search

Definition at line 224 of file itkPowellOptimizerv4.h.

template<typename TInternalComputationValueType >
double itk::PowellOptimizerv4< TInternalComputationValueType >::m_StepTolerance
private

Definition at line 225 of file itkPowellOptimizerv4.h.

template<typename TInternalComputationValueType >
bool itk::PowellOptimizerv4< TInternalComputationValueType >::m_Stop
private

this is user-settable flag to stop optimization. when users call StartOptimization, this value will be set false. By calling StopOptimization, this flag will be set true, and optimization will stop at the next iteration.

Definition at line 239 of file itkPowellOptimizerv4.h.

Referenced by itk::PowellOptimizerv4< TInternalComputationValueType >::StopOptimization().

template<typename TInternalComputationValueType >
std::ostringstream itk::PowellOptimizerv4< TInternalComputationValueType >::m_StopConditionDescription
private

Definition at line 243 of file itkPowellOptimizerv4.h.

template<typename TInternalComputationValueType >
double itk::PowellOptimizerv4< TInternalComputationValueType >::m_ValueTolerance
private

Definition at line 230 of file itkPowellOptimizerv4.h.


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