itk::FRPROptimizer Class Reference
[Numerics, Optimizers]

Implements Fletch-Reeves & Polak-Ribiere optimization using dBrent line search - adapted from Numerical Recipes in C (first edition). More...

#include <itkFRPROptimizer.h>

Inheritance diagram for itk::FRPROptimizer:

[legend]Collaboration diagram for itk::FRPROptimizer:

[legend]List of all members.

Public Types
typedef FRPROptimizer	Self
typedef PowellOptimizer	Superclass
typedef SmartPointer< Self >	Pointer
typedef SmartPointer< const Self >	ConstPointer
typedef SingleValuedNonLinearOptimizer::ParametersType	ParametersType
typedef SingleValuedCostFunction	CostFunctionType
typedef CostFunctionType::Pointer	CostFunctionPointer
Public Member Functions
virtual const char *	GetNameOfClass () const
void	StartOptimization ()
Static Public Member Functions
Pointer	New ()
Protected Member Functions
	FRPROptimizer ()
virtual	~FRPROptimizer ()
void	PrintSelf (std::ostream &os, Indent indent) const
virtual void	GetValueAndDerivative (ParametersType p, double *val, ParametersType *xi)
virtual void	LineOptimize (ParametersType *p, ParametersType xi, double *val)

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Detailed Description

Implements Fletch-Reeves & Polak-Ribiere optimization using dBrent line search - adapted from Numerical Recipes in C (first edition).

This optimizer needs a cost function. This optimizer needs to be able to compute partial derivatives of the cost function with respect to each parameter.

The SetStepLength determines the initial distance to step in a line direction when bounding the minimum (using bracketing triple spaced using a derivative-based 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 50 of file itkFRPROptimizer.h.

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Member Typedef Documentation

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

Reimplemented from itk::PowellOptimizer. Definition at line 58 of file itkFRPROptimizer.h.

typedef CostFunctionType::Pointer itk::FRPROptimizer::CostFunctionPointer

Reimplemented from itk::PowellOptimizer. Definition at line 71 of file itkFRPROptimizer.h.

typedef SingleValuedCostFunction itk::FRPROptimizer::CostFunctionType

Type of the Cost Function Reimplemented from itk::PowellOptimizer. Definition at line 70 of file itkFRPROptimizer.h.

typedef SingleValuedNonLinearOptimizer::ParametersType itk::FRPROptimizer::ParametersType

Parameters type. It defines a position in the optimization search space. Reimplemented from itk::PowellOptimizer. Definition at line 61 of file itkFRPROptimizer.h.

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

Reimplemented from itk::PowellOptimizer. Definition at line 57 of file itkFRPROptimizer.h.

typedef FRPROptimizer itk::FRPROptimizer::Self

Standard "Self" typedef. Reimplemented from itk::PowellOptimizer. Definition at line 55 of file itkFRPROptimizer.h.

typedef PowellOptimizer itk::FRPROptimizer::Superclass

Reimplemented from itk::PowellOptimizer. Definition at line 56 of file itkFRPROptimizer.h.

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Constructor & Destructor Documentation

itk::FRPROptimizer::FRPROptimizer (   )  [protected]

virtual itk::FRPROptimizer::~FRPROptimizer (   )  [protected, virtual]

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Member Function Documentation

virtual const char* itk::FRPROptimizer::GetNameOfClass (   )  const [virtual]

Run-time type information (and related methods). Reimplemented from itk::PowellOptimizer.

virtual void itk::FRPROptimizer::GetValueAndDerivative (  ParametersType  p, double *  val, ParametersType *  xi )  [protected, virtual]

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

virtual void itk::FRPROptimizer::LineOptimize (  ParametersType *  p, ParametersType  xi, double *  val )  [protected, virtual]

Pointer itk::FRPROptimizer::New (   )  [static]

Method for creation through the object factory. Reimplemented from itk::PowellOptimizer.

void itk::FRPROptimizer::PrintSelf (  std::ostream &  os, Indent  indent )  const [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::PowellOptimizer.

void itk::FRPROptimizer::StartOptimization (   )  [virtual]

Start optimization. Reimplemented from itk::PowellOptimizer.

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

• itkFRPROptimizer.h

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