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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkMeanSquaresPointSetToPointSetIntensityMetricv4_h
#define itkMeanSquaresPointSetToPointSetIntensityMetricv4_h
#include "itkPointSetToPointSetMetricv4.h"
namespace itk
{
/** \class MeanSquaresPointSetToPointSetIntensityMetricv4
* \brief Computes a mean-squares intensity metric between two point sets.
*
* We only have to handle the individual point case as the parent
* class handles the aggregation.
*
* The PointSet::PixelType contains both the intensity and gradient
* information at each point and the surrounding neighborhood. The ordering
* is based on the itk::Neighborhood data structure:
*
* http://www.itk.org/Doxygen/html/classitk_1_1Neighborhood.html
*
* pixelData = [intensity_0, gradientX_0, gradientY_0, gradientZ_0, // GetOffset( 0 )
* intensity_1, gradientX_1, gradientY_1, gradientZ_1, // GetOffset( 1 )
* ... , ... , ... , ... , ...
* intensity_N, gradientX_N, gradientY_N, gradientZ_N] // GetOffset( N )
*
*
* \ingroup ITKMetricsv4
*/
template <typename TFixedPointSet,
typename TMovingPointSet = TFixedPointSet,
typename TInternalComputationValueType = double>
class MeanSquaresPointSetToPointSetIntensityMetricv4 final
: public PointSetToPointSetMetricv4<TFixedPointSet, TMovingPointSet, TInternalComputationValueType>
{
public:
/** Standard class typedefs. */
typedef MeanSquaresPointSetToPointSetIntensityMetricv4 Self;
typedef PointSetToPointSetMetricv4<TFixedPointSet, TMovingPointSet, TInternalComputationValueType> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(MeanSquaresPointSetToPointSetIntensityMetricv4, PointSetToPointSetMetricv4);
/** Type of the fixed point set. */
typedef TFixedPointSet FixedPointSetType;
typedef typename TFixedPointSet::PointType FixedPointType;
typedef typename TFixedPointSet::PixelType FixedPixelType;
typedef typename TFixedPointSet::PointsContainer FixedPointsContainer;
typedef typename TFixedPointSet::PointDataContainer FixedPointDataContainer;
/** Dimension type */
typedef typename Superclass::DimensionType DimensionType;
static constexpr DimensionType FixedPointDimension = Superclass::FixedDimension;
/** Type of the moving point set. */
typedef TMovingPointSet MovingPointSetType;
typedef typename TMovingPointSet::PointType MovingPointType;
typedef typename TMovingPointSet::PixelType MovingPixelType;
typedef typename TMovingPointSet::PointsContainer MovingPointsContainer;
typedef typename TMovingPointSet::PointDataContainer MovingPointDataContainer;
static constexpr DimensionType MovingPointDimension = Superclass::MovingDimension;
/** Transform types from Superclass*/
typedef typename Superclass::FixedTransformType FixedTransformType;
typedef typename Superclass::MovingTransformType MovingTransformType;
static constexpr DimensionType PointDimension = Superclass::PointDimension;
/** Types transferred from the base class */
typedef typename Superclass::MeasureType MeasureType;
typedef typename Superclass::DerivativeType DerivativeType;
typedef typename Superclass::LocalDerivativeType LocalDerivativeType;
typedef typename Superclass::PointType PointType;
typedef typename Superclass::PixelType PixelType;
typedef typename Superclass::PointIdentifier PointIdentifier;
typedef typename Superclass::PointsConstIterator PointsConstIterator;
typedef CovariantVector<TInternalComputationValueType, PointDimension> CovariantVectorType;
/**
* Set/get estimate intensity distance sigma automatically based on reasonable
* heuristics.
*/
itkSetMacro(EstimateIntensityDistanceSigmaAutomatically, bool);
itkGetConstMacro(EstimateIntensityDistanceSigmaAutomatically, bool);
itkBooleanMacro(EstimateIntensityDistanceSigmaAutomatically);
/**
* Set/get estimate Euclidean distance sigma automatically based on reasonable
* heuristics.
*/
itkSetMacro(EstimateEuclideanDistanceSigmaAutomatically, bool);
itkGetConstMacro(EstimateEuclideanDistanceSigmaAutomatically, bool);
itkBooleanMacro(EstimateEuclideanDistanceSigmaAutomatically);
/**
* Set/get intensity sigma -- modulate the intensity distance contribution in the
* metric formulation. Default = sqrt( 5.0 ).
*/
itkSetMacro(IntensityDistanceSigma, TInternalComputationValueType);
itkGetConstMacro(IntensityDistanceSigma, TInternalComputationValueType);
/**
* Set/get distance sigma -- modulate the Euclidean distance contribution in the
* metric formulation. Default = sqrt( 5.0 ).
*/
itkSetMacro(EuclideanDistanceSigma, TInternalComputationValueType);
itkGetConstMacro(EuclideanDistanceSigma, TInternalComputationValueType);
/**
* Initialize the metric by estimating the intensity and distance sigmas
*/
void
Initialize(void) override;
/**
* Prepare point sets for use.
*/
void
InitializePointSets() const override;
/**
* Calculates the local metric value for a single point.
*/
MeasureType
GetLocalNeighborhoodValue(const PointType &, const PixelType &) const override;
/** Helper method allows for code reuse while skipping the metric value
* calculation when appropriate */
void
CalculateValueAndDerivative(MeasureType & value, DerivativeType & derivative, bool calculateValue) const;
/**
* Calculates the local value and derivative for a single point.
*/
void
GetLocalNeighborhoodValueAndDerivative(const PointType &,
MeasureType &,
LocalDerivativeType &,
const PixelType &) const override;
/** Clone method will clone the existing instance of this type,
* including its internal member variables. */
typename LightObject::Pointer
InternalClone() const override;
protected:
MeanSquaresPointSetToPointSetIntensityMetricv4();
~MeanSquaresPointSetToPointSetIntensityMetricv4() override;
/**
* Estimate the intensity distance sigma based on simple heuristic
*/
void
EstimateIntensityDistanceSigma();
/**
* Estimate the Euclidean distance sigma based on simple heuristic
*/
void
EstimateEuclideanDistanceSigma();
/**
* Warp the fixed point set gradients based on the fixed transform.
*/
void
TransformFixedPointSetGradients() const;
/**
* Warp the moving point set gradients based on the moving transform.
*/
void
TransformMovingPointSetGradients() const;
/** PrintSelf function */
void
PrintSelf(std::ostream & os, Indent indent) const override;
private:
MeanSquaresPointSetToPointSetIntensityMetricv4(const Self &); // purposely not implemented
void
operator=(const Self &); // purposely not implemented
bool m_EstimateIntensityDistanceSigmaAutomatically;
bool m_EstimateEuclideanDistanceSigmaAutomatically;
TInternalComputationValueType m_IntensityDistanceSigma;
TInternalComputationValueType m_EuclideanDistanceSigma;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkMeanSquaresPointSetToPointSetIntensityMetricv4.hxx"
#endif
#endif
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