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/*=========================================================================
*
* Copyright UMC Utrecht and contributors
*
* 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 itkTransformPenaltyTerm_h
#define itkTransformPenaltyTerm_h
#include "itkAdvancedImageToImageMetric.h"
// Needed for checking for B-spline for faster implementation
#include "itkAdvancedBSplineDeformableTransform.h"
#include "itkAdvancedCombinationTransform.h"
namespace itk
{
/**
* \class TransformPenaltyTerm
* \brief A cost function that calculates a penalty term
* on a transformation.
*
* We decided to make it an itk::ImageToImageMetric, since possibly
* all the stuff in there is also needed for penalty terms.
*
* A transformation penalty terms has some extra demands on the transform.
* Therefore, the transformation is required to be of itk::AdvancedTransform
* type.
*
* \ingroup Metrics
*/
template <typename TFixedImage, typename TScalarType = double>
class ITK_TEMPLATE_EXPORT TransformPenaltyTerm : public AdvancedImageToImageMetric<TFixedImage, TFixedImage>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(TransformPenaltyTerm);
/** Standard ITK stuff. */
using Self = TransformPenaltyTerm;
using Superclass = AdvancedImageToImageMetric<TFixedImage, TFixedImage>;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
/** Run-time type information (and related methods). */
itkOverrideGetNameOfClassMacro(TransformPenaltyTerm);
/** Typedef's inherited from the superclass. */
using typename Superclass::CoordinateRepresentationType;
using typename Superclass::MovingImageType;
using typename Superclass::MovingImagePixelType;
using typename Superclass::MovingImagePointer;
using typename Superclass::MovingImageConstPointer;
using typename Superclass::FixedImageType;
using typename Superclass::FixedImagePointer;
using typename Superclass::FixedImageConstPointer;
using typename Superclass::FixedImageRegionType;
// these not: use advanced transform below
// using typename Superclass::TransformType;
// using typename Superclass::TransformPointer;
using typename Superclass::InputPointType;
using typename Superclass::OutputPointType;
using typename Superclass::TransformParametersType;
using typename Superclass::TransformJacobianType;
using typename Superclass::InterpolatorType;
using typename Superclass::InterpolatorPointer;
using typename Superclass::RealType;
using typename Superclass::GradientPixelType;
using typename Superclass::GradientImageType;
using typename Superclass::GradientImagePointer;
using typename Superclass::FixedImageMaskType;
using typename Superclass::FixedImageMaskPointer;
using typename Superclass::MovingImageMaskType;
using typename Superclass::MovingImageMaskPointer;
using typename Superclass::MeasureType;
using typename Superclass::DerivativeType;
using typename Superclass::DerivativeValueType;
using typename Superclass::ParametersType;
using typename Superclass::FixedImagePixelType;
using typename Superclass::ImageSampleContainerType;
using typename Superclass::ImageSampleContainerPointer;
using typename Superclass::ThreadInfoType;
/** Typedef's for the B-spline transform. */
using typename Superclass::CombinationTransformType;
using typename Superclass::BSplineOrder1TransformType;
using typename Superclass::BSplineOrder1TransformPointer;
using typename Superclass::BSplineOrder2TransformType;
using typename Superclass::BSplineOrder2TransformPointer;
using typename Superclass::BSplineOrder3TransformType;
using typename Superclass::BSplineOrder3TransformPointer;
/** Template parameters. FixedImageType has already been taken from superclass. */
using ScalarType = TScalarType; // \todo: not really meaningful name.
/** Typedefs from the AdvancedTransform. */
using TransformType = typename Superclass::AdvancedTransformType;
using SpatialJacobianType = typename TransformType::SpatialJacobianType;
using JacobianOfSpatialJacobianType = typename TransformType::JacobianOfSpatialJacobianType;
using SpatialHessianType = typename TransformType::SpatialHessianType;
using JacobianOfSpatialHessianType = typename TransformType::JacobianOfSpatialHessianType;
using InternalMatrixType = typename TransformType::InternalMatrixType;
/** Define the dimension. */
itkStaticConstMacro(FixedImageDimension, unsigned int, FixedImageType::ImageDimension);
protected:
/** Typedefs for indices and points. */
using typename Superclass::FixedImageIndexType;
using typename Superclass::FixedImageIndexValueType;
using typename Superclass::MovingImageIndexType;
using typename Superclass::FixedImagePointType;
using typename Superclass::MovingImagePointType;
using typename Superclass::MovingImageContinuousIndexType;
using typename Superclass::NonZeroJacobianIndicesType;
/** The constructor. */
TransformPenaltyTerm() = default;
/** The destructor. */
~TransformPenaltyTerm() override = default;
/** A function to check if the transform is B-spline, for speedup. */
virtual bool
CheckForBSplineTransform2(BSplineOrder3TransformPointer & bspline) const;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkTransformPenaltyTerm.hxx"
#endif
#endif // #ifndef itkTransformPenaltyTerm_h
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