itkIterativeInverseDisplacementFieldImageFilter.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 itkIterativeInverseDisplacementFieldImageFilter_h
#define itkIterativeInverseDisplacementFieldImageFilter_h


#include "itkWarpVectorImageFilter.h"
#include "itkImageRegionIterator.h"
#include "itkTimeProbe.h"

namespace itk
{
template< typename TInputImage, typename TOutputImage >
class ITK_TEMPLATE_EXPORT IterativeInverseDisplacementFieldImageFilter:
  public ImageToImageFilter< TInputImage, TOutputImage >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(IterativeInverseDisplacementFieldImageFilter);

  using Self = IterativeInverseDisplacementFieldImageFilter;
  using Superclass = ImageToImageFilter< TInputImage, TOutputImage >;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  itkNewMacro(Self);

  itkTypeMacro(IterativeInverseDisplacementFieldImageFilter, ImageToImageFilter);

  using InputImageType = TInputImage;
  using InputImageConstPointer = typename InputImageType::ConstPointer;
  using InputImagePointer = typename InputImageType::Pointer;
  using InputImagePointType = typename InputImageType::PointType;
  using InputImageRegionType = typename InputImageType::RegionType;
  using InputImageSpacingType = typename InputImageType::SpacingType;
  using OutputImageType = TOutputImage;
  using OutputImagePointer = typename OutputImageType::Pointer;
  using OutputImagePixelType = typename OutputImageType::PixelType;
  using OutputImagePointType = typename OutputImageType::PointType;
  using OutputImageIndexType = typename OutputImageType::IndexType;
  using OutputImageValueType = typename OutputImagePixelType::ValueType;

  using TimeType = TimeProbe;

  using InputConstIterator = ImageRegionConstIterator< InputImageType >;
  using InputIterator = ImageRegionIterator< InputImageType >;
  using OutputIterator = ImageRegionIterator< OutputImageType >;

  using VectorWarperType = WarpVectorImageFilter< TOutputImage, TInputImage, TOutputImage >;

  using FieldInterpolatorType = VectorLinearInterpolateImageFunction< TInputImage, double >;
  using FieldInterpolatorPointer = typename FieldInterpolatorType::Pointer;
  using FieldInterpolatorOutputType = typename FieldInterpolatorType::OutputType;

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

  // If the error (in mm) between forward and backward mapping is smaller than
  // the StopValue,
  // the algorithm stops.
  // This value can be used to speed up the calculation.
  itkSetMacro(StopValue, double);
  itkGetConstMacro(StopValue, double);

#ifdef ITK_USE_CONCEPT_CHECKING
  // Begin concept checking
  itkConceptMacro( OutputHasNumericTraitsCheck,
                   ( Concept::HasNumericTraits< OutputImageValueType > ) );

  itkConceptMacro( SameDimensionCheck,
                   ( Concept::SameDimension< TInputImage::ImageDimension, TOutputImage::ImageDimension > ) );
  // End concept checking
#endif

protected:
  IterativeInverseDisplacementFieldImageFilter();
  ~IterativeInverseDisplacementFieldImageFilter() override = default;

  void PrintSelf(std::ostream & os, Indent indent) const override;

  void GenerateData() override;

  unsigned int m_NumberOfIterations;

  double m_StopValue;
  double m_Time;
};
} // end namespace itk

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

#endif