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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
*
* https://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 itkPointSetToSpatialObjectDemonsRegistration_h
#define itkPointSetToSpatialObjectDemonsRegistration_h
#include "itkProcessObject.h"
#include "itkImage.h"
#include "itkPointSetToImageMetric.h"
#include "itkSingleValuedNonLinearOptimizer.h"
namespace itk
{
/** \class PointSetToSpatialObjectDemonsRegistration
* \brief Implementation of Demons Registration between a PointSet and a SpatialObject
*
* The simplest case of Demons registration suggested by P. Thirion in his
* paper[1] is defined by a Model and Scene. The Model should be able to
* respond to the queries of whether a point is inside or outside of the object
* of interest, while the Scene provides a number of points (the Demons) with
* vector indicating the direction of inside-outside of the equivalent object
* of interest. In this implementation, the Scene is represented by an
* itk::PointSet that has Vectors as PixelData. These vectors should be
* provided by the user of this class and must be pointing outside of the
* object of interest. The Model is naturally represented by a
* itk::SpatialObject since its interface responds to the IsInside() method.
*
* This class is intended to be derived in order to define the method that will
* update the transform. Such method will be specific for the particular type of
* transform used.
*
* [1] J-P. Thirion "Image matching as a Diffusion Process: and Analogy with
* Maxwell's Demons", Medical Image Analysis, 1998, Vol. 2, No. 3, pp 243-260.
*
* \ingroup RegistrationFilters
* \ingroup ITKRegistrationCommon
*/
template <typename TFixedPointSet, typename TMovingSpatialObject>
class ITK_TEMPLATE_EXPORT PointSetToSpatialObjectDemonsRegistration : public ProcessObject
{
public:
ITK_DISALLOW_COPY_AND_MOVE(PointSetToSpatialObjectDemonsRegistration);
/** Standard class type aliases. */
using Self = PointSetToSpatialObjectDemonsRegistration;
using Superclass = ProcessObject;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(PointSetToSpatialObjectDemonsRegistration);
/** Type of the Fixed PointSet. */
using FixedPointSetType = TFixedPointSet;
using FixedPointSetConstPointer = typename FixedPointSetType::ConstPointer;
/** Type of the Moving image. */
using MovingSpatialObjectType = TMovingSpatialObject;
using MovingSpatialObjectConstPointer = typename MovingSpatialObjectType::ConstPointer;
/** Set/Get the Fixed image. */
itkSetConstObjectMacro(FixedPointSet, FixedPointSetType);
itkGetConstObjectMacro(FixedPointSet, FixedPointSetType);
/** Set/Get the Moving image. */
itkSetConstObjectMacro(MovingSpatialObject, MovingSpatialObjectType);
itkGetConstObjectMacro(MovingSpatialObject, MovingSpatialObjectType);
protected:
PointSetToSpatialObjectDemonsRegistration();
~PointSetToSpatialObjectDemonsRegistration() override = default;
void
PrintSelf(std::ostream & os, Indent indent) const override;
private:
MovingSpatialObjectConstPointer m_MovingSpatialObject{};
FixedPointSetConstPointer m_FixedPointSet{};
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkPointSetToSpatialObjectDemonsRegistration.hxx"
#endif
#endif
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