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reg23Topograms/itkReg23DRT/autoreg/itkTwoProjectionImageRegistrationMethod.h
2025-05-14 23:00:14 +02:00

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/*=========================================================================
*
* Copyright NumFOCUS
*
* 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 itkTwoProjectionImageRegistrationMethod_h
#define itkTwoProjectionImageRegistrationMethod_h
#include "itkChangeInformationImageFilter.h"
#include "itkDataObjectDecorator.h"
#include "itkImage.h"
#include "itkMacro.h"
#include "itkProcessObject.h"
#include "itkSingleValuedNonLinearOptimizer.h"
#include "itkgTwoImageToOneImageMetric.h"
#include "itkObject.h"
#include "itkEventObject.h"
#include <iostream>
namespace itk {
/** \class TwoProjectionImageRegistrationMethod
* \brief Base class for Image Registration Methods
*
* This Class define the generic interface for a registration method.
*
* This class is templated over the type of the two image to be
* registered. A generic Transform is used by this class. That allows
* to select at run time the particular type of transformation that
* is to be applied for registering the images.
*
* This method use a generic Metric in order to compare the two images.
* the final goal of the registration method is to find the set of
* parameters of the Transformation that optimizes the metric.
*
* The registration method also support a generic optimizer that can
* be selected at run-time. The only restriction for the optimizer is
* that it should be able to operate in single-valued cost functions
* given that the metrics used to compare images provide a single
* value as output.
*
* The terms : Fixed image and Moving image are used in this class
* to indicate what image is being mapped by the transform.
*
* This class uses the coordinate system of the Fixed image as a reference
* and searchs for a Transform that will map points from the space of the
* Fixed image to the space of the Moving image.
*
* For doing so, a Metric will be continously applied to compare the Fixed
* image with the Transformed Moving image. This process also requires to
* interpolate values from the Moving image.
*
* \ingroup RegistrationFilters
* \ingroup TwoProjectionRegistration
*/
template <typename TFixedImage, typename TMovingImage>
class TwoProjectionImageRegistrationMethod : public ProcessObject {
public:
ITK_DISALLOW_COPY_AND_ASSIGN(TwoProjectionImageRegistrationMethod);
/** Standard class type alias. */
using Self = TwoProjectionImageRegistrationMethod;
using Superclass = ProcessObject;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(TwoProjectionImageRegistrationMethod, ProcessObject);
/** Type of the Fixed image. */
using FixedImageType = TFixedImage;
using FixedImageConstPointer = typename FixedImageType::ConstPointer;
/** Type of the Moving image. */
using MovingImageType = TMovingImage;
using MovingImageConstPointer = typename MovingImageType::ConstPointer;
using ChangeInformationFilterType = ChangeInformationImageFilter<MovingImageType>;
using ChangeInformationFilterPointer = typename ChangeInformationFilterType::Pointer;
/** Type of the metric. */
using MetricType = gTwoImageToOneImageMetric<FixedImageType, MovingImageType>;
using MetricPointer = typename MetricType::Pointer;
using FixedImageRegionType = typename MetricType::FixedImageRegionType;
/** Type of the Transform . */
using TransformType = typename MetricType::TransformType;
using TransformPointer = typename TransformType::Pointer;
/** Type for the output: Using Decorator pattern for enabling
* the Transform to be passed in the data pipeline */
using TransformOutputType = DataObjectDecorator<TransformType>;
using TransformOutputPointer = typename TransformOutputType::Pointer;
using TransformOutputConstPointer = typename TransformOutputType::ConstPointer;
/** Type of the Interpolator. */
using InterpolatorType = typename MetricType::InterpolatorType;
using InterpolatorPointer = typename InterpolatorType::Pointer;
/** Type of the optimizer. */
using OptimizerType = SingleValuedNonLinearOptimizer;
/** Type of the Transformation parameters This is the same type used to
* represent the search space of the optimization algorithm */
using ParametersType = typename MetricType::TransformParametersType;
/** Smart Pointer type to a DataObject. */
using DataObjectPointer = typename DataObject::Pointer;
/** Method that initiates the registration. This will Initialize and ensure
* that all inputs the registration needs are in place, via a call to
* Initialize() will then start the optimization process via a call to
* StartOptimization() */
void
StartRegistration();
/** Method that initiates the optimization process. */
void
StartOptimization();
/** Set/Get the Fixed images. */
void
SetFixedImage1(const FixedImageType* fixedImage1);
void
SetFixedImage2(const FixedImageType* fixedImage2);
itkGetConstObjectMacro(FixedImage1, FixedImageType);
itkGetConstObjectMacro(FixedImage2, FixedImageType);
/** Set/Get the Moving image. */
void
SetMovingImage(const MovingImageType* movingImage);
itkGetConstObjectMacro(MovingImage, MovingImageType);
/** Set/Get the Optimizer. */
itkSetObjectMacro(Optimizer, OptimizerType);
itkGetConstObjectMacro(Optimizer, OptimizerType);
/** Set/Get the Metric. */
itkSetObjectMacro(Metric, MetricType);
itkGetConstObjectMacro(Metric, MetricType);
/** Set/Get the Transfrom1. */
itkSetObjectMacro(Transform1, TransformType);
itkGetConstObjectMacro(Transform1, TransformType);
/** Set/Get the Transfrom2. */
itkSetObjectMacro(Transform2, TransformType);
itkGetConstObjectMacro(Transform2, TransformType);
/** Set/Get the IsocIECTransform. */
itkSetObjectMacro(IsocIECTransform, TransformType);
itkGetConstObjectMacro(IsocIECTransform, TransformType);
/** Set/Get the Interpolators. */
itkSetObjectMacro(Interpolator1, InterpolatorType);
itkSetObjectMacro(Interpolator2, InterpolatorType);
itkGetConstObjectMacro(Interpolator1, InterpolatorType);
itkGetConstObjectMacro(Interpolator2, InterpolatorType);
/** Set/Get the Meta informations. */
itkSetObjectMacro(TransformMetaInfo, R23MetaInformation);
itkGetConstObjectMacro(TransformMetaInfo, R23MetaInformation);
itkSetObjectMacro(internalMeta1, InternalTransformMetaInformation);
itkGetConstObjectMacro(internalMeta1, InternalTransformMetaInformation);
itkSetObjectMacro(internalMeta2, InternalTransformMetaInformation);
itkGetConstObjectMacro(internalMeta2, InternalTransformMetaInformation);
/** Set/Get the output filters. */
itkSetObjectMacro(Filter1, ChangeInformationFilterType);
itkGetConstObjectMacro(Filter1, ChangeInformationFilterType);
itkSetObjectMacro(Filter2, ChangeInformationFilterType);
itkGetConstObjectMacro(Filter2, ChangeInformationFilterType);
/** Set the region of the fixed image to be considered as region of
interest during the registration. This region will be passed to
the ImageMetric in order to restrict the metric computation to
consider only this region.
\warning The same region can also be set directly into the metric.
please avoid to set the region in both places since this can lead
to inconsistent configurations. */
void
SetFixedImageRegion1(const FixedImageRegionType& region1);
void
SetFixedImageRegion2(const FixedImageRegionType& region2);
/** Get the region of the fixed image to be considered as region of
interest during the registration. This region will be passed to
the ImageMetric in order to restrict the metric computation to
consider only this region. */
itkGetConstReferenceMacro(FixedImageRegion1, FixedImageRegionType);
itkGetConstReferenceMacro(FixedImageRegion2, FixedImageRegionType);
/** True if a region has been defined for the fixed image to which
the ImageMetric will limit its computation */
itkGetMacro(FixedImageRegionDefined1, bool);
itkGetMacro(FixedImageRegionDefined2, bool);
/** Turn on/off the use of a fixed image region to which
the ImageMetric will limit its computation.
\warning The region must have been previously defined using the
SetFixedImageRegion member function */
itkSetMacro(FixedImageRegionDefined1, bool);
itkSetMacro(FixedImageRegionDefined2, bool);
/** Initialize by setting the interconnects between the components. */
virtual void
Initialize();
/** Returns the transform resulting from the registration process */
const TransformOutputType*
GetOutput() const;
/** Make a DataObject of the correct type to be used as the specified
* output. */
using Superclass::MakeOutput;
DataObjectPointer
MakeOutput(DataObjectPointerArraySizeType idx) override;
protected:
TwoProjectionImageRegistrationMethod();
~TwoProjectionImageRegistrationMethod() override = default;
void
PrintSelf(std::ostream& os, Indent indent) const override;
/** Method invoked by the pipeline in order to trigger the computation of
* the registration. */
void
GenerateData() override;
/** Provides derived classes with the ability to set this private var */
itkSetMacro(LastOptimizerParameters, ParametersType);
/** Entry-point for internal ITK filter observer. **/
// void OnInternalFilterProgressReceptor(itk::Object *caller,
// const itk::EventObject &event);
private:
MetricPointer m_Metric;
OptimizerType::Pointer m_Optimizer;
MovingImageConstPointer m_MovingImage;
FixedImageConstPointer m_FixedImage1;
FixedImageConstPointer m_FixedImage2;
TransformPointer m_IsocIECTransform;
TransformPointer m_Transform1;
TransformPointer m_Transform2;
InterpolatorPointer m_Interpolator1;
InterpolatorPointer m_Interpolator2;
InternalTransformMetaInformation::Pointer
m_internalMeta1,
m_internalMeta2;
R23MetaInformation::Pointer
m_TransformMetaInfo;
ChangeInformationFilterPointer
m_Filter1,
m_Filter2;
ParametersType m_InitialOptimizerParameters;
ParametersType m_LastOptimizerParameters;
bool m_FixedImageRegionDefined1;
bool m_FixedImageRegionDefined2;
FixedImageRegionType m_FixedImageRegion1;
FixedImageRegionType m_FixedImageRegion2;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkTwoProjectionImageRegistrationMethod.hxx"
#endif
#endif