ITK
4.4.0
Insight Segmentation and Registration Toolkit
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#include <itkQuaternionRigidTransformGradientDescentOptimizer.h>
Implement a gradient descent optimizer.
QuaternionRigidTransformGradientDescentOptimizer is an extension to the simple gradient descent optimizer implmented in GradientDescentOptimizer. At each iteration the current position is updated according to
p(n+1) = p(n) + learningRate * d f(p(n)) / d p(n)
The learning rate is a fixed scalar defined via SetLearningRate(). The optimizer steps through a user defined number of iterations; no convergence checking is done. The first four components of p are assumed to be the four components of the quaternion. After each update, the quaternion is normalized to have a magnitude of one. This ensures the the transform is purely rigid.
Definition at line 51 of file itkQuaternionRigidTransformGradientDescentOptimizer.h.
Public Member Functions | |
virtual void | AdvanceOneStep (void) |
virtual ::itk::LightObject::Pointer | CreateAnother (void) const |
virtual const char * | GetNameOfClass () const |
Public Member Functions inherited from itk::GradientDescentOptimizer | |
virtual SizeValueType | GetCurrentIteration () const |
virtual const DerivativeType & | GetGradient () |
virtual const double & | GetLearningRate () |
virtual const SizeValueType & | GetNumberOfIterations () |
virtual const double & | GetValue () |
void | ResumeOptimization (void) |
virtual void | SetLearningRate (double _arg) |
virtual void | SetNumberOfIterations (SizeValueType _arg) |
void | StartOptimization (void) |
void | StopOptimization (void) |
virtual const bool & | GetMaximize () |
virtual void | SetMaximize (bool _arg) |
virtual void | MaximizeOn () |
virtual void | MaximizeOff () |
bool | GetMinimize () const |
void | SetMinimize (bool v) |
void | MinimizeOn () |
void | MinimizeOff () |
virtual const StopConditionType & | GetStopCondition () |
const std::string | GetStopConditionDescription () const |
Public Member Functions inherited from itk::SingleValuedNonLinearOptimizer | |
virtual ::itk::LightObject::Pointer | CreateAnother (void) const |
virtual const CostFunctionType * | GetCostFunction () const |
virtual CostFunctionType * | GetModifiableCostFunction () |
MeasureType | GetValue (const ParametersType ¶meters) const |
virtual void | SetCostFunction (CostFunctionType *costFunction) |
Static Public Member Functions | |
static Pointer | New () |
Static Public Member Functions inherited from itk::GradientDescentOptimizer | |
static Pointer | New () |
Static Public Member Functions inherited from itk::SingleValuedNonLinearOptimizer | |
static Pointer | New () |
Static Public Member Functions inherited from itk::NonLinearOptimizer | |
static Pointer | New () |
Static Public Member Functions inherited from itk::Optimizer | |
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 | |
QuaternionRigidTransformGradientDescentOptimizer () | |
virtual | ~QuaternionRigidTransformGradientDescentOptimizer () |
Protected Member Functions inherited from itk::GradientDescentOptimizer | |
GradientDescentOptimizer () | |
void | PrintSelf (std::ostream &os, Indent indent) const |
virtual | ~GradientDescentOptimizer () |
Protected Member Functions inherited from itk::SingleValuedNonLinearOptimizer | |
void | PrintSelf (std::ostream &os, Indent indent) const |
SingleValuedNonLinearOptimizer () | |
virtual | ~SingleValuedNonLinearOptimizer () |
Protected Member Functions inherited from itk::NonLinearOptimizer | |
NonLinearOptimizer () | |
virtual | ~NonLinearOptimizer () |
Protected Member Functions inherited from itk::Optimizer | |
Optimizer () | |
virtual void | SetCurrentPosition (const ParametersType ¶m) |
virtual | ~Optimizer () |
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 | |
void | operator= (const Self &) |
QuaternionRigidTransformGradientDescentOptimizer (const Self &) | |
Additional Inherited Members | |
Protected Types inherited from itk::LightObject | |
typedef int | InternalReferenceCountType |
Protected Attributes inherited from itk::GradientDescentOptimizer | |
DerivativeType | m_Gradient |
double | m_LearningRate |
bool | m_Maximize |
typedef SmartPointer< const Self > itk::QuaternionRigidTransformGradientDescentOptimizer::ConstPointer |
Definition at line 59 of file itkQuaternionRigidTransformGradientDescentOptimizer.h.
typedef Superclass::ParametersType itk::QuaternionRigidTransformGradientDescentOptimizer::ParametersType |
Parameters type. It defines a position in the optimization search space.
Definition at line 66 of file itkQuaternionRigidTransformGradientDescentOptimizer.h.
Definition at line 58 of file itkQuaternionRigidTransformGradientDescentOptimizer.h.
typedef QuaternionRigidTransformGradientDescentOptimizer itk::QuaternionRigidTransformGradientDescentOptimizer::Self |
Standard class typedefs.
Definition at line 56 of file itkQuaternionRigidTransformGradientDescentOptimizer.h.
Definition at line 57 of file itkQuaternionRigidTransformGradientDescentOptimizer.h.
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Definition at line 76 of file itkQuaternionRigidTransformGradientDescentOptimizer.h.
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Definition at line 77 of file itkQuaternionRigidTransformGradientDescentOptimizer.h.
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private |
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Advance one step following the gradient direction.
Reimplemented from itk::GradientDescentOptimizer.
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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::GradientDescentOptimizer.
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virtual |
Run-time type information (and related methods).
Reimplemented from itk::GradientDescentOptimizer.
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Method for creation through the object factory.
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private |