/usr/include/ITK-4.5/itkExpectationBasedPointSetToPointSetMetricv4.h is in libinsighttoolkit4-dev 4.5.0-3.
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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 __itkExpectationBasedPointSetToPointSetMetricv4_h
#define __itkExpectationBasedPointSetToPointSetMetricv4_h
#include "itkPointSetToPointSetMetricv4.h"
#include "itkPointSet.h"
#include "itkImage.h"
namespace itk
{
/**
* \class ExpectationBasedPointSetToPointSetMetricv4
* \brief Computes an expectation-based metric between two point sets.
*
* This information-theoretic point set measure models each point set
* as a sum of Gaussians. To speed up computation, evaluation of the local
* value/derivative is done in a user-specified neighborhood using the k-d
* tree constructed in the superclass.
*
* Reference:
* Pluta J, Avants BB, Glynn S, Awate S, Gee JC, Detre JA,
* "Appearance and incomplete label matching for diffeomorphic template
* "based hippocampus segmentation", Hippocampus, 2009 Jun; 19(6):565-71.
*
* \ingroup ITKMetricsv4
*/
template<typename TFixedPointSet, typename TMovingPointSet = TFixedPointSet>
class ExpectationBasedPointSetToPointSetMetricv4:
public PointSetToPointSetMetricv4<TFixedPointSet, TMovingPointSet>
{
public:
/** Standard class typedefs. */
typedef ExpectationBasedPointSetToPointSetMetricv4 Self;
typedef PointSetToPointSetMetricv4<TFixedPointSet, TMovingPointSet> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Method for creation through the object factory. */
itkSimpleNewMacro( Self );
/** Run-time type information (and related methods). */
itkTypeMacro( ExpectationBasedPointSetToPointSetMetricv4, PointSetToPointSetMetricv4 );
/** 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::CoordRepType CoordRepType;
typedef typename Superclass::PointIdentifier PointIdentifier;
typedef typename Superclass::NeighborsIdentifierType NeighborsIdentifierType;
/**
* Calculates the local metric value for a single point.
*/
virtual MeasureType GetLocalNeighborhoodValue( const PointType &, const PixelType & pixel = 0 ) const;
/**
* Calculates the local value and derivative for a single point.
*/
virtual void GetLocalNeighborhoodValueAndDerivative( const PointType &,
MeasureType &, LocalDerivativeType &, const PixelType & pixel = 0 ) const;
/**
* Each point is associated with a Gaussian characterized by m_PointSetSigma
* which provides a sense of scale for determining the similarity between two
* point sets. Default = 1.0.
*/
itkSetMacro( PointSetSigma, CoordRepType );
/** Get the point set sigma function */
itkGetConstMacro( PointSetSigma, CoordRepType );
/**
* Set the neighborhood size used to evaluate the measurement at each
* point. Default = 50.
*/
itkSetMacro( EvaluationKNeighborhood, unsigned int );
/**
* Get the neighborhood size used to evaluate the measurement at each
* point. Default = 50.
*/
itkGetConstMacro( EvaluationKNeighborhood, unsigned int );
void Initialize( void ) throw ( ExceptionObject );
/** Clone method will clone the existing instance of this type,
* including its internal member variables. */
virtual ::itk::LightObject::Pointer Clone( void ) const;
protected:
ExpectationBasedPointSetToPointSetMetricv4();
virtual ~ExpectationBasedPointSetToPointSetMetricv4();
/** PrintSelf function */
void PrintSelf( std::ostream & os, Indent indent ) const;
private:
ExpectationBasedPointSetToPointSetMetricv4( const Self & ); //purposely not implemented
void operator=( const Self & ); //purposely not implemented
typedef typename PointType::VectorType VectorType;
typedef typename NeighborsIdentifierType::const_iterator NeighborsIterator;
CoordRepType m_PointSetSigma;
MeasureType m_PreFactor;
MeasureType m_Denominator;
unsigned int m_EvaluationKNeighborhood;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkExpectationBasedPointSetToPointSetMetricv4.hxx"
#endif
#endif
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