itkJensenHavrdaCharvatTsallisPointSetToPointSetMetricv4.h

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 *  Copyright Insight Software Consortium
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 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
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 *         http://www.apache.org/licenses/LICENSE-2.0.txt
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 *  See the License for the specific language governing permissions and
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#ifndef __itkJensenHavrdaCharvatTsallisPointSetToPointSetMetricv4_h
#define __itkJensenHavrdaCharvatTsallisPointSetToPointSetMetricv4_h

#include "itkPointSetToPointSetMetricv4.h"

#include "itkManifoldParzenWindowsPointSetFunction.h"

namespace itk {

template<typename TPointSet, class TInternalComputationValueType = double>
class JensenHavrdaCharvatTsallisPointSetToPointSetMetricv4 :
    public PointSetToPointSetMetricv4<TPointSet, TPointSet, TInternalComputationValueType>
{
public:
  typedef JensenHavrdaCharvatTsallisPointSetToPointSetMetricv4 Self;
  typedef PointSetToPointSetMetricv4<TPointSet, TPointSet,
    TInternalComputationValueType>                             Superclass;
  typedef SmartPointer<Self>                                   Pointer;
  typedef SmartPointer<const Self>                             ConstPointer;

  itkSimpleNewMacro( Self );

  itkTypeMacro( JensenHavrdaCharvatTsallisPointSetToPointSetMetricv4, PointSetToPointSetMetricv4 );

  typedef TPointSet                                 PointSetType;
  typedef typename PointSetType::PointsContainer    PointsContainer;
  typedef typename PointsContainer::ConstIterator   PointsContainerConstIterator;

  itkStaticConstMacro( PointDimension, unsigned int, TPointSet::PointDimension );

  typedef typename Superclass::MeasureType              MeasureType;
  typedef typename Superclass::DerivativeType           DerivativeType;
  typedef typename Superclass::DerivativeValueType      DerivativeValueType;
  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;
  typedef typename Superclass::NumberOfParametersType   NumberOfParametersType;

  typedef typename Superclass::JacobianType                   JacobianType;
  typedef typename Superclass::FixedTransformJacobianType     FixedTransformJacobianType;
  typedef typename Superclass::MovingTransformJacobianType    MovingTransformJacobianType;

  typedef MeasureType                                   RealType;

  typedef ManifoldParzenWindowsPointSetFunction
    <PointSetType, RealType>                            DensityFunctionType;
  typedef typename DensityFunctionType::GaussianType    GaussianType;
  typedef typename DensityFunctionType::Pointer         DensityFunctionPointer;

  virtual void Initialize( void ) throw ( ExceptionObject );

  itkSetClampMacro( Alpha, RealType, 1.0, 2.0 );

  itkGetConstMacro( Alpha, RealType );

  itkSetMacro( PointSetSigma, RealType );

  itkGetConstMacro( PointSetSigma, RealType );

  itkSetMacro( EvaluationKNeighborhood, unsigned int );

  itkGetConstMacro( EvaluationKNeighborhood, unsigned int );

  itkSetMacro( UseAnisotropicCovariances, bool );

  itkGetConstMacro( UseAnisotropicCovariances, bool );

  itkBooleanMacro( UseAnisotropicCovariances );

  itkSetMacro( CovarianceKNeighborhood, unsigned int );

  itkGetConstMacro( CovarianceKNeighborhood, unsigned int );

  itkSetMacro( KernelSigma, RealType );

  itkGetConstMacro( KernelSigma, RealType );

  virtual MeasureType GetLocalNeighborhoodValue( const PointType & point,
    const PixelType & pixel = 0 ) const;

  virtual void GetLocalNeighborhoodValueAndDerivative( const PointType &, MeasureType &,
    LocalDerivativeType &, const PixelType & pixel = 0 ) const;

  virtual typename LightObject::Pointer InternalClone() const;

protected:
  JensenHavrdaCharvatTsallisPointSetToPointSetMetricv4();
  ~JensenHavrdaCharvatTsallisPointSetToPointSetMetricv4();

  void ComputeValueAndDerivative( const PointType & samplePoint, MeasureType & value,
    LocalDerivativeType &derivativeReturn, bool calcValue, bool calcDerivative ) const;

  void PrintSelf( std::ostream& os, Indent indent ) const;

private:
  //purposely not implemented
  JensenHavrdaCharvatTsallisPointSetToPointSetMetricv4( const Self& );
  void operator=( const Self& );

  DensityFunctionPointer                   m_MovingDensityFunction;
  DensityFunctionPointer                   m_FixedDensityFunction;

  bool                                     m_UseAnisotropicCovariances;

  RealType                                 m_PointSetSigma;
  RealType                                 m_KernelSigma;
  unsigned int                             m_CovarianceKNeighborhood;
  unsigned int                             m_EvaluationKNeighborhood;

  RealType                                 m_Alpha;

  mutable RealType                         m_TotalNumberOfPoints;
  mutable RealType                         m_Prefactor0;
  mutable RealType                         m_Prefactor1;
};


} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkJensenHavrdaCharvatTsallisPointSetToPointSetMetricv4.hxx"
#endif

#endif