mitkAlgorithmHelper.cpp

Go to the documentation of this file.

/*===================================================================

The Medical Imaging Interaction Toolkit (MITK)

Copyright (c) German Cancer Research Center,
Division of Medical and Biological Informatics.
All rights reserved.

This software is distributed WITHOUT ANY WARRANTY; without
even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE.

See LICENSE.txt or http://www.mitk.org for details.

===================================================================*/

#include "mitkAlgorithmHelper.h"

//itk
#include <itkImageDuplicator.h>

// Mitk
#include <mitkImageAccessByItk.h>
#include <mitkPointSetMappingHelper.h>

// MatchPoint
#include <mapImageRegistrationAlgorithmInterface.h>
#include <mapRegistrationAlgorithmInterface.h>
#include <mapPointSetRegistrationAlgorithmInterface.h>
#include <mapDummyImageRegistrationAlgorithm.h>
#include <mapAlgorithmIdentificationInterface.h>

namespace mitk
{

  MITKAlgorithmHelper::MITKAlgorithmHelper(map::algorithm::RegistrationAlgorithmBase* algorithm) :
    m_AlgorithmBase(algorithm)
  {
    m_AllowImageCasting = true;
  }

  map::core::RegistrationBase::Pointer
  MITKAlgorithmHelper::
  GetRegistration() const
  {
    map::core::RegistrationBase::Pointer spResult;

    unsigned int movingDim = m_AlgorithmBase->getMovingDimensions();
    unsigned int targetDim = m_AlgorithmBase->getTargetDimensions();

    if (movingDim != targetDim)
    {
      mapDefaultExceptionStaticMacro( <<
                                      "Error, algorithm instance has unequal dimensionality and is therefore not supported in the current version of MITKAlgorithmHelper.");
    }

    if (movingDim > 3)
    {
      mapDefaultExceptionStaticMacro( <<
                                      "Error, algorithm instance has a dimensionality larger than 3 and is therefore not supported in the current version of MITKAlgorithmHelper.");
    }

    typedef ::map::algorithm::facet::RegistrationAlgorithmInterface<2, 2> RegistrationAlg2D2DInterface;
    typedef ::map::algorithm::facet::RegistrationAlgorithmInterface<3, 3> RegistrationAlg3D3DInterface;

    RegistrationAlg2D2DInterface* pRegAlgorithm2D2D = dynamic_cast<RegistrationAlg2D2DInterface*>
        (m_AlgorithmBase.GetPointer());
    RegistrationAlg3D3DInterface* pRegAlgorithm3D3D = dynamic_cast<RegistrationAlg3D3DInterface*>
        (m_AlgorithmBase.GetPointer());

    if (pRegAlgorithm2D2D)
    {
      spResult = pRegAlgorithm2D2D->getRegistration();
    }

    if (pRegAlgorithm3D3D)
    {
      spResult = pRegAlgorithm3D3D->getRegistration();
    }

    return spResult;
  }

  mitk::MAPRegistrationWrapper::Pointer
  MITKAlgorithmHelper::
  GetMITKRegistrationWrapper() const
  {
    map::core::RegistrationBase::Pointer spInternalResult = GetRegistration();
    mitk::MAPRegistrationWrapper::Pointer spResult = mitk::MAPRegistrationWrapper::New();
    spResult->SetRegistration(spInternalResult);
    return spResult;
  };


  static const mitk::Image* GetDataAsImage(const mitk::BaseData* data)
  {
    return dynamic_cast<const mitk::Image*>(data);
  };

  static const mitk::PointSet* GetDataAsPointSet(const mitk::BaseData* data)
  {
    return dynamic_cast<const mitk::PointSet*>(data);
  };

  bool
  MITKAlgorithmHelper::
  CheckData(const mitk::BaseData* moving, const mitk::BaseData* target, CheckError::Type& error) const
  {
    if (! m_AlgorithmBase)
    {
      mapDefaultExceptionStaticMacro( << "Error, cannot check data. Helper has no algorithm defined.");
    }

    if (! moving)
    {
      mapDefaultExceptionStaticMacro( << "Error, cannot check data. Moving data pointer is NULL.");
    }

    if (! target)
    {
      mapDefaultExceptionStaticMacro( << "Error, cannot check data. Target data pointer is NULL.");
    }

    bool result = false;
    m_Error = CheckError::unsupportedDataType;

    unsigned int movingDim = m_AlgorithmBase->getMovingDimensions();
    unsigned int targetDim = m_AlgorithmBase->getTargetDimensions();

    if (movingDim != targetDim)
    {
      m_Error = CheckError::wrongDimension;
    }
    else
    {
      //First check if data are point sets or images
      if (GetDataAsPointSet(target) && GetDataAsPointSet(moving))
      {
        typedef ::map::core::continuous::Elements<3>::InternalPointSetType InternalDefaultPointSetType;
        typedef ::map::algorithm::facet::PointSetRegistrationAlgorithmInterface<InternalDefaultPointSetType, InternalDefaultPointSetType>
        PointSetRegInterface;

        PointSetRegInterface* pPointSetInterface = dynamic_cast<PointSetRegInterface*>
            (m_AlgorithmBase.GetPointer());

        if (!pPointSetInterface)
        {
          result = false;
          m_Error = CheckError::unsupportedDataType;
        }
      }
      else if (GetDataAsImage(moving) && GetDataAsImage(target))
      {
        if (movingDim == 2)
        {
          AccessTwoImagesFixedDimensionByItk(GetDataAsImage(moving), GetDataAsImage(target), DoCheckImages,
                                             2);
        }
        else if (movingDim == 3)
        {
          AccessTwoImagesFixedDimensionByItk(GetDataAsImage(moving), GetDataAsImage(target), DoCheckImages,
                                             3);
        }
        else
        {
          m_Error = CheckError::wrongDimension;
        }

        if (m_Error == CheckError::none || (m_AllowImageCasting && m_Error == CheckError::onlyByCasting))
        {
          result = true;
        }
      }

    }

    error = m_Error;
    return result;

  };

  void MITKAlgorithmHelper::SetAllowImageCasting(bool allowCasting)
  {
    this->m_AllowImageCasting = allowCasting;
  };

  bool MITKAlgorithmHelper::GetAllowImageCasting() const
  {
    return this->m_AllowImageCasting;
  };

  void MITKAlgorithmHelper::SetData(const mitk::BaseData* moving, const mitk::BaseData* target)
  {
    if (! m_AlgorithmBase)
    {
      mapDefaultExceptionStaticMacro( << "Error, cannot check data. Helper has no algorithm defined.");
    }

    if (! moving)
    {
      mapDefaultExceptionStaticMacro( << "Error, cannot check data. Moving data pointer is NULL.");
    }

    if (! target)
    {
      mapDefaultExceptionStaticMacro( << "Error, cannot check data. Target data pointer is NULL.");
    }

    unsigned int movingDim = m_AlgorithmBase->getMovingDimensions();
    unsigned int targetDim = m_AlgorithmBase->getTargetDimensions();

    if (movingDim != targetDim)
    {
      mapDefaultExceptionStaticMacro( <<
                                      "Error, cannot set data. Current version of MITKAlgorithmHelper only supports images/point sets with same dimensionality.");
    }

    if (GetDataAsPointSet(target) && GetDataAsPointSet(moving))
    {
      typedef ::map::core::continuous::Elements<3>::InternalPointSetType InternalDefaultPointSetType;
      typedef ::map::algorithm::facet::PointSetRegistrationAlgorithmInterface<InternalDefaultPointSetType, InternalDefaultPointSetType>
      PointSetRegInterface;

      PointSetRegInterface* pPointSetInterface = dynamic_cast<PointSetRegInterface*>
          (m_AlgorithmBase.GetPointer());

      pPointSetInterface->setMovingPointSet(mitk::PointSetMappingHelper::ConvertPointSetMITKtoMAP(
                                              GetDataAsPointSet(moving)->GetPointSet()));
      pPointSetInterface->setTargetPointSet(mitk::PointSetMappingHelper::ConvertPointSetMITKtoMAP(
                                              GetDataAsPointSet(target)->GetPointSet()));
    }
    else if (GetDataAsImage(moving) && GetDataAsImage(target))
    {
      if (movingDim == 2)
      {
        AccessTwoImagesFixedDimensionByItk(GetDataAsImage(moving), GetDataAsImage(target), DoSetImages, 2);
      }
      else if (movingDim == 3)
      {
        AccessTwoImagesFixedDimensionByItk(GetDataAsImage(moving), GetDataAsImage(target), DoSetImages, 3);
      }
    }
  };

  template<typename TInImageType, typename TOutImageType>
  typename TOutImageType::Pointer MITKAlgorithmHelper::CastImage(const TInImageType* input) const
  {
    typedef itk::CastImageFilter< TInImageType, TOutImageType > CastFilterType;
    typename CastFilterType::Pointer  spImageCaster =  CastFilterType::New();

    spImageCaster->SetInput(input);

    typename TOutImageType::Pointer spImage = spImageCaster->GetOutput();
    spImageCaster->Update();

    return spImage;
  }

  template<typename TPixelType1, unsigned int VImageDimension1,
           typename TPixelType2, unsigned int VImageDimension2>
  void MITKAlgorithmHelper::DoSetImages(const itk::Image<TPixelType1, VImageDimension1>* moving,
                                        const itk::Image<TPixelType2, VImageDimension2>* target)
  {
    typedef itk::Image<TPixelType1, VImageDimension1> MovingImageType;
    typedef itk::Image<TPixelType2, VImageDimension2> TargetImageType;
    typedef itk::Image<map::core::discrete::InternalPixelType, VImageDimension1>
    InternalDefaultMovingImageType;
    typedef itk::Image<map::core::discrete::InternalPixelType, VImageDimension2>
    InternalDefaultTargetImageType;

    typedef ::map::algorithm::facet::ImageRegistrationAlgorithmInterface<MovingImageType, TargetImageType>
    ImageRegInterface;
    typedef ::map::algorithm::facet::ImageRegistrationAlgorithmInterface<InternalDefaultMovingImageType, InternalDefaultTargetImageType>
    DefaultImageRegInterface;


    ImageRegInterface* pImageInterface = dynamic_cast<ImageRegInterface*>(m_AlgorithmBase.GetPointer());
    DefaultImageRegInterface* pDefaultImageInterface = dynamic_cast<DefaultImageRegInterface*>
        (m_AlgorithmBase.GetPointer());

    if (pImageInterface)
    {
      //just set directly and you are done

      typedef itk::ImageDuplicator< MovingImageType > MovingDuplicatorType;
      typedef itk::ImageDuplicator< TargetImageType > TargetDuplicatorType;
      typename MovingDuplicatorType::Pointer mDuplicator = MovingDuplicatorType::New();
      mDuplicator->SetInputImage(moving);
      mDuplicator->Update();

      typename TargetDuplicatorType::Pointer tDuplicator = TargetDuplicatorType::New();
      tDuplicator->SetInputImage(target);
      tDuplicator->Update();

      typename MovingImageType::Pointer clonedMoving = mDuplicator->GetOutput();
      typename TargetImageType::Pointer clonedTarget = tDuplicator->GetOutput();

      pImageInterface->setTargetImage(clonedTarget);
      pImageInterface->setMovingImage(clonedMoving);
    }
    else if (pDefaultImageInterface)
    {
      //you may convert it to the default image type and use it then
      if (! m_AllowImageCasting)
      {
        mapDefaultExceptionStaticMacro( <<
                                        "Error, cannot set images. MITKAlgorithmHelper has to convert them into MatchPoint default images, but is not allowed. Please reconfigure helper.");
      }

      typename InternalDefaultTargetImageType::Pointer spCastedTarget =
        CastImage<TargetImageType, InternalDefaultTargetImageType>(target);
      typename InternalDefaultMovingImageType::Pointer spCastedMoving =
        CastImage<MovingImageType, InternalDefaultMovingImageType>(moving);
      pDefaultImageInterface->setTargetImage(spCastedTarget);
      pDefaultImageInterface->setMovingImage(spCastedMoving);
    }
    else
    {
      mapDefaultExceptionStaticMacro( << "Error, algorithm is not able to use the based images.");
    }
  }

  template<typename TPixelType1, unsigned int VImageDimension1,
           typename TPixelType2, unsigned int VImageDimension2>
  void MITKAlgorithmHelper::DoCheckImages(const itk::Image<TPixelType1, VImageDimension1>* moving,
                                          const itk::Image<TPixelType2, VImageDimension2>* target) const
  {
    typedef itk::Image<TPixelType1, VImageDimension1> MovingImageType;
    typedef itk::Image<TPixelType2, VImageDimension2> TargetImageType;
    typedef itk::Image<map::core::discrete::InternalPixelType, VImageDimension1>
    InternalDefaultMovingImageType;
    typedef itk::Image<map::core::discrete::InternalPixelType, VImageDimension2>
    InternalDefaultTargetImageType;

    typedef ::map::algorithm::facet::ImageRegistrationAlgorithmInterface<MovingImageType, TargetImageType>
    ImageRegInterface;
    typedef ::map::algorithm::facet::ImageRegistrationAlgorithmInterface<InternalDefaultMovingImageType, InternalDefaultTargetImageType>
    DefaultImageRegInterface;

    ImageRegInterface* pImageInterface = dynamic_cast<ImageRegInterface*>(m_AlgorithmBase.GetPointer());
    DefaultImageRegInterface* pDefaultImageInterface = dynamic_cast<DefaultImageRegInterface*>
        (m_AlgorithmBase.GetPointer());

    if (pImageInterface)
    {
      //just set directly and you are done
      m_Error = CheckError::none;
    }
    else if (pDefaultImageInterface)
    {
      //you may convert it to the default image type and use it then
      m_Error = CheckError::onlyByCasting;
    }
    else
    {
      m_Error = CheckError::unsupportedDataType;
    }
  }


  mapGenerateAlgorithmUIDPolicyMacro(DummyRegIDPolicy, "de.dkfz.dipp", "Identity", "1.0.0", "");

  mitk::MAPRegistrationWrapper::Pointer GenerateIdentityRegistration3D()
  {
      typedef map::algorithm::DummyImageRegistrationAlgorithm<map::core::discrete::Elements<3>::InternalImageType, map::core::discrete::Elements<3>::InternalImageType, DummyRegIDPolicy>
          DummyRegType;
      DummyRegType::Pointer regAlg = DummyRegType::New();
      mitk::MITKAlgorithmHelper helper(regAlg);

      map::core::discrete::Elements<3>::InternalImageType::Pointer dummyImg =
          map::core::discrete::Elements<3>::InternalImageType::New();
      dummyImg->Allocate();
      regAlg->setTargetImage(dummyImg);
      regAlg->setMovingImage(dummyImg);

      mitk::MAPRegistrationWrapper::Pointer dummyReg = mitk::MAPRegistrationWrapper::New();
      dummyReg->SetRegistration(regAlg->getRegistration());

      return dummyReg;
  }

}