ITK  6.0.0
Insight Toolkit
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itk::RegistrationParameterScalesFromJacobian< TMetric > Class Template Reference

#include <itkRegistrationParameterScalesFromJacobian.h>

Detailed Description

template<typename TMetric>
class itk::RegistrationParameterScalesFromJacobian< TMetric >

Implements a registration helper class for estimating scales of transform parameters from Jacobian norms.

Its input includes the fixed/moving images and transform objects, which can be obtained from the metric object.

The scale of a parameter is estimated from the averaged squared norm of the Jacobian w.r.t the parameter. The averaging is done over a sampling of the image domain. The sampling by default is a uniform random distribution.

Definition at line 42 of file itkRegistrationParameterScalesFromJacobian.h.

+ Inheritance diagram for itk::RegistrationParameterScalesFromJacobian< TMetric >:
+ Collaboration diagram for itk::RegistrationParameterScalesFromJacobian< TMetric >:

Public Types

using ConstPointer = SmartPointer< const Self >
 
using Pointer = SmartPointer< Self >
 
using Self = RegistrationParameterScalesFromJacobian
 
using Superclass = RegistrationParameterScalesEstimator< TMetric >
 
- Public Types inherited from itk::RegistrationParameterScalesEstimator< TMetric >
using ConstPointer = SmartPointer< const Self >
 
using FixedTransformConstPointer = typename FixedTransformType::ConstPointer
 
using FixedTransformType = typename MetricType::FixedTransformType
 
using JacobianType = typename TMetric::JacobianType
 
using MetricConstPointer = typename MetricType::ConstPointer
 
using MetricPointer = typename MetricType::Pointer
 
using MetricType = TMetric
 
using MovingTransformConstPointer = typename MovingTransformType::ConstPointer
 
using MovingTransformType = typename MetricType::MovingTransformType
 
using Pointer = SmartPointer< Self >
 
using SamplePointContainerType = std::vector< VirtualPointType >
 
using SamplingStrategyType = SamplingStrategyEnum
 
using Self = RegistrationParameterScalesEstimator
 
using Superclass = OptimizerParameterScalesEstimatorTemplate< typename TMetric::ParametersValueType >
 
using VirtualImageConstPointer = typename TMetric::VirtualImageConstPointer
 
using VirtualImagePointer = typename TMetric::VirtualImagePointer
 
using VirtualImageType = typename TMetric::VirtualImageType
 
using VirtualIndexType = typename TMetric::VirtualIndexType
 
using VirtualPointSetPointer = typename TMetric::VirtualPointSetPointer
 
using VirtualPointSetType = typename TMetric::VirtualPointSetType
 
using VirtualPointType = typename TMetric::VirtualPointType
 
using VirtualRegionType = typename TMetric::VirtualRegionType
 
using VirtualSizeType = typename TMetric::VirtualSizeType
 
using VirtualSpacingType = typename TMetric::VirtualSpacingType
 
- Public Types inherited from itk::OptimizerParameterScalesEstimatorTemplate< TMetric::ParametersValueType >
using ConstPointer = SmartPointer< const Self >
 
using FloatType = TMetric::ParametersValueType
 
using ParametersType = OptimizerParameters< TMetric::ParametersValueType >
 
using Pointer = SmartPointer< Self >
 
using ScalesType = OptimizerParameters< TMetric::ParametersValueType >
 
using Self = OptimizerParameterScalesEstimatorTemplate
 
using Superclass = Object
 
- Public Types inherited from itk::Object
using ConstPointer = SmartPointer< const Self >
 
using Pointer = SmartPointer< Self >
 
using Self = Object
 
using Superclass = LightObject
 
- Public Types inherited from itk::LightObject
using ConstPointer = SmartPointer< const Self >
 
using Pointer = SmartPointer< Self >
 
using Self = LightObject
 

Public Member Functions

void EstimateLocalStepScales (const ParametersType &step, ScalesType &localStepScales) override
 
void EstimateScales (ScalesType &parameterScales) override
 
FloatType EstimateStepScale (const ParametersType &step) override
 
const char * GetNameOfClass () const override
 
- Public Member Functions inherited from itk::RegistrationParameterScalesEstimator< TMetric >
void EstimateLocalStepScales (const ParametersType &step, ScalesType &localStepScales) override=0
 
FloatType EstimateMaximumStepSize () override
 
void EstimateScales (ScalesType &scales) override=0
 
FloatType EstimateStepScale (const ParametersType &step) override=0
 
const char * GetNameOfClass () const override
 
virtual void SetScalesSamplingStrategy ()
 
virtual void SetStepScaleSamplingStrategy ()
 
virtual void SetMetric (MetricType *_arg)
 
virtual const MetricTypeGetMetric () const
 
virtual void SetTransformForward (bool _arg)
 
virtual bool GetTransformForward () const
 
virtual void TransformForwardOn ()
 
virtual void SetVirtualDomainPointSet (const VirtualPointSetType *_arg)
 
virtual const VirtualPointSetTypeGetVirtualDomainPointSet () const
 
virtual void SetCentralRegionRadius (IndexValueType _arg)
 
virtual IndexValueType GetCentralRegionRadius () const
 
- Public Member Functions inherited from itk::OptimizerParameterScalesEstimatorTemplate< TMetric::ParametersValueType >
virtual void EstimateLocalStepScales (const ParametersType &step, ScalesType &localStepScales)=0
 
virtual FloatType EstimateMaximumStepSize ()=0
 
virtual void EstimateScales (ScalesType &scales)=0
 
virtual FloatType EstimateStepScale (const ParametersType &step)=0
 
const char * GetNameOfClass () const override
 
- Public Member Functions inherited from itk::Object
unsigned long AddObserver (const EventObject &event, Command *cmd) const
 
unsigned long AddObserver (const EventObject &event, std::function< void(const EventObject &)> function) const
 
LightObject::Pointer CreateAnother () const override
 
virtual void DebugOff () const
 
virtual void DebugOn () const
 
CommandGetCommand (unsigned long tag)
 
bool GetDebug () const
 
MetaDataDictionaryGetMetaDataDictionary ()
 
const MetaDataDictionaryGetMetaDataDictionary () const
 
virtual ModifiedTimeType GetMTime () const
 
const char * GetNameOfClass () const override
 
virtual const TimeStampGetTimeStamp () const
 
bool HasObserver (const EventObject &event) const
 
void InvokeEvent (const EventObject &)
 
void InvokeEvent (const EventObject &) const
 
virtual void Modified () const
 
void Register () const override
 
void RemoveAllObservers ()
 
void RemoveObserver (unsigned long tag) const
 
void SetDebug (bool debugFlag) const
 
void SetReferenceCount (int) override
 
void UnRegister () const noexcept override
 
void SetMetaDataDictionary (const MetaDataDictionary &rhs)
 
void SetMetaDataDictionary (MetaDataDictionary &&rrhs)
 
virtual void SetObjectName (std::string _arg)
 
virtual const std::string & GetObjectName () const
 
- Public Member Functions inherited from itk::LightObject
Pointer Clone () const
 
virtual Pointer CreateAnother () const
 
virtual void Delete ()
 
virtual const char * GetNameOfClass () const
 
virtual int GetReferenceCount () const
 
void Print (std::ostream &os, Indent indent=0) const
 
virtual void Register () const
 
virtual void SetReferenceCount (int)
 
virtual void UnRegister () const noexcept
 

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 val)
 
- Static Public Member Functions inherited from itk::LightObject
static void BreakOnError ()
 
static Pointer New ()
 

Protected Member Functions

void ComputeSampleStepScales (const ParametersType &step, ScalesType &sampleScales)
 
void PrintSelf (std::ostream &os, Indent indent) const override
 
 RegistrationParameterScalesFromJacobian ()=default
 
 ~RegistrationParameterScalesFromJacobian () override=default
 
- Protected Member Functions inherited from itk::RegistrationParameterScalesEstimator< TMetric >
bool CheckAndSetInputs ()
 
bool CheckGeneralAffineTransform ()
 
template<typename TTransform >
bool CheckGeneralAffineTransformTemplated ()
 
void ComputeSquaredJacobianNorms (const VirtualPointType &point, ParametersType &squareNorms)
 
SizeValueType GetDimension ()
 
SizeValueType GetNumberOfLocalParameters ()
 
virtual SamplingStrategyType GetSamplingStrategy ()
 
const TransformBaseTemplate< typename TMetric::MeasureType > * GetTransform ()
 
VirtualIndexType GetVirtualDomainCentralIndex ()
 
VirtualRegionType GetVirtualDomainCentralRegion ()
 
bool IsBSplineTransform ()
 
bool IsDisplacementFieldTransform ()
 
void PrintSelf (std::ostream &os, Indent indent) const override
 
 RegistrationParameterScalesEstimator ()
 
virtual void SampleVirtualDomain ()
 
void SampleVirtualDomainFully ()
 
void SampleVirtualDomainRandomly ()
 
void SampleVirtualDomainWithCentralRegion ()
 
void SampleVirtualDomainWithCorners ()
 
void SampleVirtualDomainWithPointSet ()
 
void SampleVirtualDomainWithRegion (VirtualRegionType region)
 
virtual void SetNumberOfRandomSamples (SizeValueType _arg)
 
virtual void SetSamplingStrategy (SamplingStrategyType _arg)
 
bool TransformHasLocalSupportForScalesEstimation ()
 
template<typename TTargetPointType >
void TransformPoint (const VirtualPointType &point, TTargetPointType &mappedPoint)
 
template<typename TContinuousIndexType >
void TransformPointToContinuousIndex (const VirtualPointType &point, TContinuousIndexType &mappedIndex)
 
void UpdateTransformParameters (const ParametersType &deltaParameters)
 
 ~RegistrationParameterScalesEstimator () override=default
 
- Protected Member Functions inherited from itk::OptimizerParameterScalesEstimatorTemplate< TMetric::ParametersValueType >
 OptimizerParameterScalesEstimatorTemplate ()=default
 
void PrintSelf (std::ostream &os, Indent indent) const override
 
 ~OptimizerParameterScalesEstimatorTemplate () override=default
 
- Protected Member Functions inherited from itk::Object
 Object ()
 
bool PrintObservers (std::ostream &os, Indent indent) const
 
void PrintSelf (std::ostream &os, Indent indent) const override
 
virtual void SetTimeStamp (const TimeStamp &timeStamp)
 
 ~Object () override
 
- Protected Member Functions inherited from itk::LightObject
virtual LightObject::Pointer InternalClone () const
 
 LightObject ()
 
virtual void PrintHeader (std::ostream &os, Indent indent) const
 
virtual void PrintSelf (std::ostream &os, Indent indent) const
 
virtual void PrintTrailer (std::ostream &os, Indent indent) const
 
virtual ~LightObject ()
 

Additional Inherited Members

- Static Public Attributes inherited from itk::RegistrationParameterScalesEstimator< TMetric >
static constexpr SizeValueType FixedDimension = TMetric::FixedDimension
 
static constexpr SizeValueType MovingDimension = TMetric::MovingDimension
 
static constexpr SizeValueType VirtualDimension = TMetric::VirtualDimension
 
- Protected Attributes inherited from itk::RegistrationParameterScalesEstimator< TMetric >
IndexValueType m_CentralRegionRadius {}
 
MetricPointer m_Metric {}
 
SizeValueType m_NumberOfRandomSamples {}
 
SamplePointContainerType m_SamplePoints {}
 
TimeStamp m_SamplingTime {}
 
VirtualPointSetType::ConstPointer m_VirtualDomainPointSet {}
 
- Protected Attributes inherited from itk::LightObject
std::atomic< int > m_ReferenceCount {}
 
- Static Protected Attributes inherited from itk::RegistrationParameterScalesEstimator< TMetric >
static constexpr SizeValueType SizeOfSmallDomain = 1000
 

Member Typedef Documentation

◆ ConstPointer

template<typename TMetric >
using itk::RegistrationParameterScalesFromJacobian< TMetric >::ConstPointer = SmartPointer<const Self>

Definition at line 51 of file itkRegistrationParameterScalesFromJacobian.h.

◆ Pointer

template<typename TMetric >
using itk::RegistrationParameterScalesFromJacobian< TMetric >::Pointer = SmartPointer<Self>

Definition at line 50 of file itkRegistrationParameterScalesFromJacobian.h.

◆ Self

Standard class type aliases.

Definition at line 48 of file itkRegistrationParameterScalesFromJacobian.h.

◆ Superclass

Definition at line 49 of file itkRegistrationParameterScalesFromJacobian.h.

Constructor & Destructor Documentation

◆ RegistrationParameterScalesFromJacobian()

template<typename TMetric >
itk::RegistrationParameterScalesFromJacobian< TMetric >::RegistrationParameterScalesFromJacobian ( )
protecteddefault

◆ ~RegistrationParameterScalesFromJacobian()

template<typename TMetric >
itk::RegistrationParameterScalesFromJacobian< TMetric >::~RegistrationParameterScalesFromJacobian ( )
overrideprotecteddefault

Member Function Documentation

◆ ComputeSampleStepScales()

template<typename TMetric >
void itk::RegistrationParameterScalesFromJacobian< TMetric >::ComputeSampleStepScales ( const ParametersType step,
ScalesType sampleScales 
)
protected

Compute the step scales for samples, i.e. the impacts on each sampled voxel from a change on the transform.

◆ EstimateLocalStepScales()

template<typename TMetric >
void itk::RegistrationParameterScalesFromJacobian< TMetric >::EstimateLocalStepScales ( const ParametersType step,
ScalesType localStepScales 
)
overridevirtual

Estimate the scales of local steps. For each voxel, computes the impact of a step on its location as in EstimateStepScale(). Then this impact is attributed to the corresponding local parameters.

Implements itk::RegistrationParameterScalesEstimator< TMetric >.

◆ EstimateScales()

template<typename TMetric >
void itk::RegistrationParameterScalesFromJacobian< TMetric >::EstimateScales ( ScalesType parameterScales)
overridevirtual

Estimate parameter scales from average Jacobian norms. For each parameter, compute the squared norm of its transform Jacobian, then average the squared norm over the sample points. This average is used as the scale of this parameter.

Implements itk::RegistrationParameterScalesEstimator< TMetric >.

◆ EstimateStepScale()

template<typename TMetric >
FloatType itk::RegistrationParameterScalesFromJacobian< TMetric >::EstimateStepScale ( const ParametersType step)
overridevirtual

Estimate the scale for \(\Delta p\), the step of change on parameters. The step scale describes the impact of \(\Delta p\) on the transform.

Let us denote the transform by

\[ T(x, p) = T(x, p_0 + t * \Delta p) \]

where \(x\) is the coordinates of a voxel, \(p = p_0+t*\Delta p\) is the transform parameters, and \(t\) is the step factor.

At a specific voxel at \(x\), the step scale w.r.t. \(\Delta p\) is defined here as

\[ |\frac{dT}{dt}| = |\frac{\partial T}{\partial p} * \Delta p |. \]

For multiple voxels, we average the above formula to get the overall step scale.

Implements itk::RegistrationParameterScalesEstimator< TMetric >.

◆ GetNameOfClass()

template<typename TMetric >
const char * itk::RegistrationParameterScalesFromJacobian< TMetric >::GetNameOfClass ( ) const
overridevirtual

◆ New()

template<typename TMetric >
static Pointer itk::RegistrationParameterScalesFromJacobian< TMetric >::New ( )
static

New macro for creation of through a Smart Pointer.

◆ PrintSelf()

template<typename TMetric >
void itk::RegistrationParameterScalesFromJacobian< TMetric >::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::RegistrationParameterScalesEstimator< TMetric >.


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