animaTensorCorrelationImageToImageMetric.h

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#pragma once

#include <animaBaseOrientedModelImageToImageMetric.h>
#include <itkVectorImage.h>
#include <itkCovariantVector.h>
#include <itkPoint.h>

namespace anima
{

template <class TFixedImagePixelType, class TMovingImagePixelType, unsigned int ImageDimension>
class TensorCorrelationImageToImageMetric :
public BaseOrientedModelImageToImageMetric < itk::VectorImage <TFixedImagePixelType, ImageDimension>, itk::VectorImage <TMovingImagePixelType, ImageDimension> >
{
public:

    typedef itk::VectorImage <TFixedImagePixelType, ImageDimension> TFixedImage;
    typedef itk::VectorImage <TMovingImagePixelType, ImageDimension> TMovingImage;

    typedef TensorCorrelationImageToImageMetric Self;
    typedef BaseOrientedModelImageToImageMetric<TFixedImage, TMovingImage > Superclass;
    typedef itk::SmartPointer<Self> Pointer;
    typedef itk::SmartPointer<const Self> ConstPointer;

    itkNewMacro(Self)

    
    itkTypeMacro(TensorCorrelationImageToImageMetric, BaseOrientedModelImageToImageMetric)

    
    typedef typename TFixedImage::PixelType PixelType;

    typedef typename Superclass::TransformType TransformType;
    typedef typename Superclass::TransformPointer TransformPointer;
    typedef typename Superclass::TransformParametersType TransformParametersType;
    typedef typename Superclass::OutputPointType OutputPointType;
    typedef typename Superclass::InputPointType InputPointType;
    typedef typename itk::ContinuousIndex <double, ImageDimension> ContinuousIndexType;

    typedef typename Superclass::CoordinateRepresentationType CoordinateRepresentationType;

    typedef typename Superclass::MeasureType MeasureType;
    typedef typename Superclass::FixedImageType FixedImageType;
    typedef typename Superclass::MovingImageType MovingImageType;
    typedef typename Superclass::FixedImageConstPointer FixedImageConstPointer;
    typedef typename Superclass::MovingImageConstPointer MovingImageConstPointer;

    MeasureType GetValue(const TransformParametersType & parameters) const ITK_OVERRIDE;

    void PreComputeFixedValues();

protected:
    TensorCorrelationImageToImageMetric();
    virtual ~TensorCorrelationImageToImageMetric() {}

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

    double m_FixedTProduct, m_FixedDenominator;
    double m_LogEpsilon;

    std::vector <InputPointType> m_FixedImagePoints;
    std::vector <PixelType> m_FixedImageValues;
};

} // end namespace anima

#include "animaTensorCorrelationImageToImageMetric.hxx"