itkTimeVaryingBSplineVelocityFieldImageRegistrationMethod.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 __itkTimeVaryingBSplineVelocityFieldImageRegistrationMethod_h
#define __itkTimeVaryingBSplineVelocityFieldImageRegistrationMethod_h

#include "itkImageRegistrationMethodv4.h"

#include "itkBSplineScatteredDataPointSetToImageFilter.h"
#include "itkImageMaskSpatialObject.h"
#include "itkTimeVaryingBSplineVelocityFieldTransform.h"

namespace itk
{
//Forward-declare these because of module dependency conflict.
//They will soon be moved to a different module, at which
// time this can be removed.
template <unsigned int VDimension, typename TDataHolder>
class ImageToData;
template <typename TDataHolder>
class Array1DToData;

template<typename TFixedImage, typename TMovingImage, typename TOutputTransform =
  TimeVaryingBSplineVelocityFieldTransform<double, TFixedImage::ImageDimension> >
class TimeVaryingBSplineVelocityFieldImageRegistrationMethod
: public ImageRegistrationMethodv4<TFixedImage, TMovingImage, TOutputTransform>
{
public:
  typedef TimeVaryingBSplineVelocityFieldImageRegistrationMethod                      Self;
  typedef ImageRegistrationMethodv4<TFixedImage, TMovingImage, TOutputTransform>      Superclass;
  typedef SmartPointer<Self>                                                          Pointer;
  typedef SmartPointer<const Self>                                                    ConstPointer;

  itkNewMacro( Self );

  itkStaticConstMacro( ImageDimension, unsigned int, TFixedImage::ImageDimension );

  itkTypeMacro( TimeVaryingBSplineVelocityFieldImageRegistrationMethod, SimpleImageRegistrationMethod );

  typedef TFixedImage                                                 FixedImageType;
  typedef typename FixedImageType::Pointer                            FixedImagePointer;
  typedef TMovingImage                                                MovingImageType;
  typedef typename MovingImageType::Pointer                           MovingImagePointer;

  typedef typename Superclass::ImageMetricType                        ImageMetricType;
  typedef typename ImageMetricType::Pointer                           ImageMetricPointer;
  typedef typename ImageMetricType::VirtualImageType                  VirtualImageType;
  typedef typename ImageMetricType::MeasureType                       MeasureType;
  typedef typename Superclass::MultiMetricType                        MultiMetricType;
  typedef typename ImageMetricType::FixedImageMaskType                FixedImageMaskType;
  typedef typename ImageMetricType::MovingImageMaskType               MovingImageMaskType;
  typedef ImageMaskSpatialObject<ImageDimension>                      ImageMaskSpatialObjectType;
  typedef typename ImageMaskSpatialObjectType::ImageType              MaskImageType;

  typedef TOutputTransform                                                                     OutputTransformType;
  typedef typename OutputTransformType::Pointer                                                OutputTransformPointer;
  typedef typename OutputTransformType::ScalarType                                             RealType;
  typedef typename OutputTransformType::DerivativeType                                         DerivativeType;
  typedef typename DerivativeType::ValueType                                                   DerivativeValueType;
  typedef typename OutputTransformType::DisplacementFieldType                                  DisplacementFieldType;
  typedef typename OutputTransformType::TimeVaryingVelocityFieldControlPointLatticeType        TimeVaryingVelocityFieldControlPointLatticeType;
  typedef typename OutputTransformType::TimeVaryingVelocityFieldControlPointLatticePointer     TimeVaryingVelocityFieldControlPointLatticePointer;
  typedef typename OutputTransformType::TimeVaryingVelocityFieldControlPointLatticeType        TimeVaryingVelocityFieldType;
  typedef typename OutputTransformType::TimeVaryingVelocityFieldControlPointLatticePointer     TimeVaryingVelocityFieldPointer;
  typedef typename TimeVaryingVelocityFieldControlPointLatticeType::PixelType                  DisplacementVectorType;

  typedef typename Superclass::CompositeTransformType                                    CompositeTransformType;

  typedef typename Superclass::DecoratedOutputTransformType           DecoratedOutputTransformType;
  typedef typename DecoratedOutputTransformType::Pointer              DecoratedOutputTransformPointer;

  typedef Array<SizeValueType>                                        NumberOfIterationsArrayType;

  typedef PointSet<DisplacementVectorType, ImageDimension + 1>                                  PointSetType;
  typedef BSplineScatteredDataPointSetToImageFilter<PointSetType, TimeVaryingVelocityFieldType> BSplineFilterType;
  typedef typename BSplineFilterType::WeightsContainerType                                      WeightsContainerType;
  typedef typename WeightsContainerType::Element                                                WeightsElementType;
  typedef Image<WeightsElementType, ImageDimension>                                             WeightedMaskImageType;
  typedef Image<WeightsElementType, ImageDimension + 1>                                         TimeVaryingWeightedMaskImageType;

  itkSetMacro( LearningRate, RealType );
  itkGetConstMacro( LearningRate, RealType );

  itkSetMacro( NumberOfIterationsPerLevel, NumberOfIterationsArrayType );
  itkGetConstMacro( NumberOfIterationsPerLevel, NumberOfIterationsArrayType );

  itkSetMacro( ConvergenceThreshold, RealType );
  itkGetConstMacro( ConvergenceThreshold, RealType );

  itkSetMacro( ConvergenceWindowSize, unsigned int );
  itkGetConstMacro( ConvergenceWindowSize, unsigned int );

  itkSetMacro( NumberOfTimePointSamples, SizeValueType );
  itkGetConstMacro( NumberOfTimePointSamples, SizeValueType );

protected:
  TimeVaryingBSplineVelocityFieldImageRegistrationMethod();
  virtual ~TimeVaryingBSplineVelocityFieldImageRegistrationMethod();
  virtual void PrintSelf( std::ostream & os, Indent indent ) const;

  virtual void  GenerateData();

  virtual void StartOptimization();

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

  RealType                                                        m_LearningRate;

  RealType                                                        m_ConvergenceThreshold;
  unsigned int                                                    m_ConvergenceWindowSize;

  NumberOfIterationsArrayType                                     m_NumberOfIterationsPerLevel;

  SizeValueType                                                   m_NumberOfTimePointSamples;
};
} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkTimeVaryingBSplineVelocityFieldImageRegistrationMethod.hxx"
#endif

#endif