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itkPDEDeformableRegistrationFunction.h
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itkPDEDeformableRegistrationFunction.h
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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 itkPDEDeformableRegistrationFunction_h
#define itkPDEDeformableRegistrationFunction_h
#include "itkFiniteDifferenceFunction.h"
namespace itk
{
/** \class PDEDeformableRegistrationFunction
*
* This is an abstract base class for all PDE functions which drives a
* deformable registration algorithm. It is used by
* PDEDeformationRegistrationFilter subclasses to compute the
* output deformation field which will map a moving image onto
* a fixed image.
*
* This class is templated over the fixed image type, moving image type
* and the deformation field type.
*
* \sa PDEDeformableRegistrationFilter
* \ingroup FiniteDifferenceFunctions
* \ingroup ITKRegistrationCommon
*/
template< typename TFixedImage, typename TMovingImage, typename TDisplacementField >
class PDEDeformableRegistrationFunction:
public FiniteDifferenceFunction< TDisplacementField >
{
public:
ITK_DISALLOW_COPY_AND_ASSIGN(PDEDeformableRegistrationFunction);
/** Standard class type aliases. */
using Self = PDEDeformableRegistrationFunction;
using Superclass = FiniteDifferenceFunction< TDisplacementField >;
using Pointer = SmartPointer< Self >;
using ConstPointer = SmartPointer< const Self >;
/** Run-time type information (and related methods) */
itkTypeMacro(PDEDeformableRegistrationFunction,
FiniteDifferenceFunction);
/** MovingImage image type. */
using MovingImageType = TMovingImage;
using MovingImagePointer = typename MovingImageType::ConstPointer;
/** FixedImage image type. */
using FixedImageType = TFixedImage;
using FixedImagePointer = typename FixedImageType::ConstPointer;
/** Deformation field type. */
using DisplacementFieldType = TDisplacementField;
using DisplacementFieldTypePointer = typename DisplacementFieldType::Pointer;
/** Set the moving image. */
void SetMovingImage(const MovingImageType *ptr)
{ m_MovingImage = ptr; }
/** Get the moving image. */
const MovingImageType * GetMovingImage() const
{ return m_MovingImage; }
/** Set the fixed image. */
void SetFixedImage(const FixedImageType *ptr)
{ m_FixedImage = ptr; }
/** Get the fixed image. */
const FixedImageType * GetFixedImage() const
{ return m_FixedImage; }
/** Set the deformation field image. */
void SetDisplacementField(DisplacementFieldTypePointer ptr)
{ m_DisplacementField = ptr; }
/** Get the deformation field. This function should have been
* declared const. It is not for backward compatibility reasons. */
DisplacementFieldType * GetDisplacementField()
{ return m_DisplacementField; }
void SetEnergy(double e) { m_Energy = e; }
double GetEnergy() const { return m_Energy; }
void SetGradientStep(double e) { m_GradientStep = e; }
double GetGradientStep() const { return m_GradientStep; }
void SetNormalizeGradient(bool e) { m_NormalizeGradient = e; }
bool GetNormalizeGradient() const { return m_NormalizeGradient; }
protected:
PDEDeformableRegistrationFunction()
{
m_MovingImage = nullptr;
m_FixedImage = nullptr;
m_DisplacementField = nullptr;
m_Energy = 0.0;
m_NormalizeGradient = true;
m_GradientStep = 1.0;
}
~PDEDeformableRegistrationFunction() override = default;
void PrintSelf(std::ostream & os, Indent indent) const override
{
Superclass::PrintSelf(os, indent);
os << indent << "MovingImage: ";
os << m_MovingImage.GetPointer() << std::endl;
os << indent << "FixedImage: ";
os << m_FixedImage.GetPointer() << std::endl;
}
/** The moving image. */
MovingImagePointer m_MovingImage;
/** The fixed image. */
FixedImagePointer m_FixedImage;
/** The deformation field. */
DisplacementFieldTypePointer m_DisplacementField;
mutable double m_Energy;
bool m_NormalizeGradient;
mutable double m_GradientStep;
};
} // end namespace itk
#endif