itk::VersorRigid3DTransformOptimizer Class Reference
[Numerics, Optimizers]

Implement a gradient descent optimizer for the VersorRigid3DTransform parameter space. More...

#include <itkVersorRigid3DTransformOptimizer.h>

Inheritance diagram for itk::VersorRigid3DTransformOptimizer:

[legend]Collaboration diagram for itk::VersorRigid3DTransformOptimizer:

[legend]List of all members.

Public Types
typedef VersorRigid3DTransformOptimizer	Self
typedef RegularStepGradientDescentBaseOptimizer	Superclass
typedef SmartPointer< Self >	Pointer
typedef SmartPointer< const Self >	ConstPointer
typedef Versor< double >	VersorType
typedef VersorType::VectorType	VectorType
Public Member Functions
virtual const char *	GetNameOfClass () const
	itkStaticConstMacro (SpaceDimension, unsigned int, 6)
virtual void	StepAlongGradient (double factor, const DerivativeType &transformedGradient)
Static Public Member Functions
Pointer	New ()
Protected Member Functions
	VersorRigid3DTransformOptimizer ()
virtual	~VersorRigid3DTransformOptimizer ()

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Detailed Description

Implement a gradient descent optimizer for the VersorRigid3DTransform parameter space.

VersorRigid3DTransformOptimizer is a variant of the gradient descent optimizer implmented in RegularStepGradientDescentOptimizer.

Versors are not in a vector space, for that reason, the classical gradient descent algorithm has to be modified in order to be applicable to Versors (unit quaternions) that form the group SO(3).

The Versor space has only three degrees of freedom, even though Versors are represented using four values.

This optimizer assumes that the CostFunction to be optimized has an itk::Versor and an itk::Vector as parameters.

See also:

RegularStepGradientDescentOptimizer

Versor

VersorRigid3DTransform

Definition at line 49 of file itkVersorRigid3DTransformOptimizer.h.

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Member Typedef Documentation

typedef SmartPointer<const Self> itk::VersorRigid3DTransformOptimizer::ConstPointer

Reimplemented from itk::RegularStepGradientDescentBaseOptimizer. Definition at line 57 of file itkVersorRigid3DTransformOptimizer.h.

typedef SmartPointer<Self> itk::VersorRigid3DTransformOptimizer::Pointer

Reimplemented from itk::RegularStepGradientDescentBaseOptimizer. Definition at line 56 of file itkVersorRigid3DTransformOptimizer.h.

typedef VersorRigid3DTransformOptimizer itk::VersorRigid3DTransformOptimizer::Self

Standard class typedefs. Reimplemented from itk::RegularStepGradientDescentBaseOptimizer. Definition at line 54 of file itkVersorRigid3DTransformOptimizer.h.

typedef RegularStepGradientDescentBaseOptimizer itk::VersorRigid3DTransformOptimizer::Superclass

Reimplemented from itk::RegularStepGradientDescentBaseOptimizer. Definition at line 55 of file itkVersorRigid3DTransformOptimizer.h.

typedef VersorType::VectorType itk::VersorRigid3DTransformOptimizer::VectorType

Definition at line 71 of file itkVersorRigid3DTransformOptimizer.h.

typedef Versor<double> itk::VersorRigid3DTransformOptimizer::VersorType

Versor Type Definition at line 70 of file itkVersorRigid3DTransformOptimizer.h.

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Constructor & Destructor Documentation

itk::VersorRigid3DTransformOptimizer::VersorRigid3DTransformOptimizer (   )  [inline, protected]

Definition at line 79 of file itkVersorRigid3DTransformOptimizer.h.

virtual itk::VersorRigid3DTransformOptimizer::~VersorRigid3DTransformOptimizer (   )  [inline, protected, virtual]

Definition at line 80 of file itkVersorRigid3DTransformOptimizer.h.

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Member Function Documentation

virtual const char* itk::VersorRigid3DTransformOptimizer::GetNameOfClass (   )  const [virtual]

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

itk::VersorRigid3DTransformOptimizer::itkStaticConstMacro (  SpaceDimension  , unsigned  int, 6  )

This class is specialized for 3D

Pointer itk::VersorRigid3DTransformOptimizer::New (   )  [static]

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

virtual void itk::VersorRigid3DTransformOptimizer::StepAlongGradient (  double  factor, const DerivativeType &  transformedGradient )  [virtual]

Advance one step following the gradient direction. Reimplemented from itk::RegularStepGradientDescentBaseOptimizer.

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

• itkVersorRigid3DTransformOptimizer.h

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