itk::ForwardAndBackProjectionDifferenceFilter< IntensityType > Class Template Reference

Class to compute the difference between a reconstruction estimate and the target set of 2D projection images. More...

Inheritance diagram for itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >:

Collaboration diagram for itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >:

Public Types
typedef ForwardAndBackProjectionDifferenceFilter	Self
typedef ImageToImageFilter < Image< IntensityType, 3 > , Image< IntensityType, 3 > >	Superclass
typedef SmartPointer< Self >	Pointer
typedef SmartPointer< const Self >	ConstPointer
typedef Image< IntensityType, 3 >	InputVolumeType
typedef InputVolumeType::Pointer	InputVolumePointer
typedef InputVolumeType::ConstPointer	InputVolumeConstPointer
typedef InputVolumeType::RegionType	InputVolumeRegionType
typedef InputVolumeType::PixelType	InputVolumePixelType
typedef InputVolumeType::SizeType	InputVolumeSizeType
typedef InputVolumeType::SpacingType	InputVolumeSpacingType
typedef InputVolumeType::PointType	InputVolumePointType
typedef Image< IntensityType, 3 >	InputProjectionVolumeType
typedef InputProjectionVolumeType::Pointer	InputProjectionVolumePointer
typedef InputProjectionVolumeType::RegionType	InputProjectionVolumeRegionType
typedef InputProjectionVolumeType::PixelType	InputProjectionVolumePixelType
typedef InputProjectionVolumeType::SizeType	InputProjectionVolumeSizeType
typedef InputProjectionVolumeType::SpacingType	InputProjectionVolumeSpacingType
typedef InputProjectionVolumeType::PointType	InputProjectionVolumePointType
typedef Image< IntensityType, 3 >	OutputBackProjectedDifferencesType
typedef OutputBackProjectedDifferencesType::Pointer	OutputBackProjectedDifferencesPointer
typedef OutputBackProjectedDifferencesType::RegionType	OutputBackProjectedDifferencesRegionType
typedef OutputBackProjectedDifferencesType::PixelType	OutputBackProjectedDifferencesPixelType
typedef OutputBackProjectedDifferencesType::SizeType	OutputBackProjectedDifferencesSizeType
typedef OutputBackProjectedDifferencesType::SpacingType	OutputBackProjectedDifferencesSpacingType
typedef OutputBackProjectedDifferencesType::PointType	OutputBackProjectedDifferencesPointType
typedef itk::EulerAffineTransform < double, 3, 3 >	EulerAffineTransformType
typedef EulerAffineTransformType::Pointer	EulerAffineTransformPointer
typedef itk::PerspectiveProjectionTransform < double >	PerspectiveProjectionTransformType
typedef PerspectiveProjectionTransformType::Pointer	PerspectiveProjectionTransformPointer
typedef itk::ForwardImageProjector3Dto2D < IntensityType >	ForwardImageProjector3Dto2DType
typedef ForwardImageProjector3Dto2DType::Pointer	ForwardImageProjector3Dto2DPointer
typedef ForwardImageProjector3Dto2DType::OutputImageType	ForwardProjectorOutputImageType
typedef ForwardProjectorOutputImageType::Pointer	ForwardProjectorOutputImagePointer
typedef ForwardProjectorOutputImageType::RegionType	ForwardProjectorOutputImageRegionType
typedef ForwardProjectorOutputImageType::SizeType	ForwardProjectorOutputImageSizeType
typedef ForwardProjectorOutputImageType::SpacingType	ForwardProjectorOutputImageSpacingType
typedef ForwardProjectorOutputImageType::PointType	ForwardProjectorOutputImagePointType
typedef ForwardProjectorOutputImageType::PixelType	ForwardProjectorOutputImagePixelType
typedef ForwardProjectorOutputImageType::IndexType	ForwardProjectorOutputImageIndexType
typedef itk::Subtract2DImageFromVolumeSliceFilter < IntensityType >	Subtract2DImageFromVolumeSliceFilterType
typedef Subtract2DImageFromVolumeSliceFilterType::Pointer	Subtract2DImageFromVolumeSliceFilterPointer
typedef itk::BackwardImageProjector2Dto3D < IntensityType >	BackwardImageProjector2Dto3DType
typedef BackwardImageProjector2Dto3DType::Pointer	BackwardImageProjector2Dto3DPointer
typedef itk::ProjectionGeometry < IntensityType >	ProjectionGeometryType
typedef ProjectionGeometryType::Pointer	ProjectionGeometryPointer

Public Member Functions
virtual const char *	GetClassName () const
void	SetInputVolume (InputVolumeType *im3D)
	Set the 3D reconstruction estimate volume input. More...
void	SetInputProjectionVolume (InputProjectionVolumeType *im2D)
	Set the input 3D volume of projection image. More...
virtual void	SetProjectionGeometry (ProjectionGeometryType *_arg)
	Get/Set the projection geometry. More...
virtual ProjectionGeometryType *	GetProjectionGeometry ()
InputVolumePointer	GetPointerToInputVolume (void)
	itkStaticConstMacro (InputVolumeDimension, unsigned int, InputVolumeType::ImageDimension)
	itkStaticConstMacro (OutputBackProjectedDifferencesDimension, unsigned int, OutputBackProjectedDifferencesType::ImageDimension)
virtual void	GenerateInputRequestedRegion ()
virtual void	EnlargeOutputRequestedRegion (DataObject *output)
void	Initialise (void)
	Initialise the image pipeline. More...
void	ClearVolumePriorToNextBackProjection (void)
	Set the backprojection volume to zero prior to the next back-projection. More...

Static Public Member Functions
static Pointer	New ()

Protected Member Functions
	ForwardAndBackProjectionDifferenceFilter ()
virtual	~ForwardAndBackProjectionDifferenceFilter ()
void	PrintSelf (std::ostream &os, Indent indent) const
void	GenerateData ()
	The function called when the filter is executed. More...
virtual void	VerifyInputInformation ()

Protected Attributes
bool	m_FlagPipelineInitialised
	Flag indicating whether the filter has been initialised. More...
unsigned int	m_NumberOfProjections
	The number of projection images. More...
ForwardImageProjector3Dto2DPointer	m_ForwardProjector
	The forward-projector. More...
Subtract2DImageFromVolumeSliceFilterPointer	m_SubtractProjectionFromEstimate
	A filter to perform the subtraction. More...
BackwardImageProjector2Dto3DPointer	m_BackProjector
	The back-projector. More...
ProjectionGeometryPointer	m_ProjectionGeometry
	The specific projection geometry to be used. More...

Detailed Description

template<class IntensityType = float>
class itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >

Class to compute the difference between a reconstruction estimate and the target set of 2D projection images.

This class performs a forward projection of the input volume, calculates the difference between this projection and the corresponding slice of the input volume of 2D projection images and back-projects these differences into the output 3D volume. This process is repeated for each slice of the input volume of 2D projection images and the back-projected differences are summed.

Member Typedef Documentation

template<class IntensityType = float>

typedef BackwardImageProjector2Dto3DType::Pointer itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::BackwardImageProjector2Dto3DPointer

template<class IntensityType = float>

typedef itk::BackwardImageProjector2Dto3D<IntensityType> itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::BackwardImageProjector2Dto3DType

template<class IntensityType = float>

typedef SmartPointer<const Self> itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::ConstPointer

template<class IntensityType = float>

typedef EulerAffineTransformType::Pointer itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::EulerAffineTransformPointer

template<class IntensityType = float>

typedef itk::EulerAffineTransform<double, 3, 3> itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::EulerAffineTransformType

template<class IntensityType = float>

typedef ForwardImageProjector3Dto2DType::Pointer itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::ForwardImageProjector3Dto2DPointer

template<class IntensityType = float>

typedef itk::ForwardImageProjector3Dto2D<IntensityType> itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::ForwardImageProjector3Dto2DType

template<class IntensityType = float>

typedef ForwardProjectorOutputImageType::IndexType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::ForwardProjectorOutputImageIndexType

template<class IntensityType = float>

typedef ForwardProjectorOutputImageType::PixelType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::ForwardProjectorOutputImagePixelType

template<class IntensityType = float>

typedef ForwardProjectorOutputImageType::Pointer itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::ForwardProjectorOutputImagePointer

template<class IntensityType = float>

typedef ForwardProjectorOutputImageType::PointType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::ForwardProjectorOutputImagePointType

template<class IntensityType = float>

typedef ForwardProjectorOutputImageType::RegionType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::ForwardProjectorOutputImageRegionType

template<class IntensityType = float>

typedef ForwardProjectorOutputImageType::SizeType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::ForwardProjectorOutputImageSizeType

template<class IntensityType = float>

typedef ForwardProjectorOutputImageType::SpacingType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::ForwardProjectorOutputImageSpacingType

template<class IntensityType = float>

typedef ForwardImageProjector3Dto2DType::OutputImageType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::ForwardProjectorOutputImageType

template<class IntensityType = float>

typedef InputProjectionVolumeType::PixelType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::InputProjectionVolumePixelType

template<class IntensityType = float>

typedef InputProjectionVolumeType::Pointer itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::InputProjectionVolumePointer

template<class IntensityType = float>

typedef InputProjectionVolumeType::PointType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::InputProjectionVolumePointType

template<class IntensityType = float>

typedef InputProjectionVolumeType::RegionType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::InputProjectionVolumeRegionType

template<class IntensityType = float>

typedef InputProjectionVolumeType::SizeType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::InputProjectionVolumeSizeType

template<class IntensityType = float>

typedef InputProjectionVolumeType::SpacingType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::InputProjectionVolumeSpacingType

template<class IntensityType = float>

typedef Image<IntensityType, 3> itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::InputProjectionVolumeType

template<class IntensityType = float>

typedef InputVolumeType::ConstPointer itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::InputVolumeConstPointer

template<class IntensityType = float>

typedef InputVolumeType::PixelType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::InputVolumePixelType

template<class IntensityType = float>

typedef InputVolumeType::Pointer itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::InputVolumePointer

template<class IntensityType = float>

typedef InputVolumeType::PointType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::InputVolumePointType

template<class IntensityType = float>

typedef InputVolumeType::RegionType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::InputVolumeRegionType

template<class IntensityType = float>

typedef InputVolumeType::SizeType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::InputVolumeSizeType

template<class IntensityType = float>

typedef InputVolumeType::SpacingType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::InputVolumeSpacingType

template<class IntensityType = float>

typedef Image<IntensityType, 3> itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::InputVolumeType

Some convenient typedefs.

template<class IntensityType = float>

typedef OutputBackProjectedDifferencesType::PixelType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::OutputBackProjectedDifferencesPixelType

template<class IntensityType = float>

typedef OutputBackProjectedDifferencesType::Pointer itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::OutputBackProjectedDifferencesPointer

template<class IntensityType = float>

typedef OutputBackProjectedDifferencesType::PointType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::OutputBackProjectedDifferencesPointType

template<class IntensityType = float>

typedef OutputBackProjectedDifferencesType::RegionType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::OutputBackProjectedDifferencesRegionType

template<class IntensityType = float>

typedef OutputBackProjectedDifferencesType::SizeType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::OutputBackProjectedDifferencesSizeType

template<class IntensityType = float>

typedef OutputBackProjectedDifferencesType::SpacingType itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::OutputBackProjectedDifferencesSpacingType

template<class IntensityType = float>

typedef Image<IntensityType, 3> itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::OutputBackProjectedDifferencesType

template<class IntensityType = float>

typedef PerspectiveProjectionTransformType::Pointer itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::PerspectiveProjectionTransformPointer

template<class IntensityType = float>

typedef itk::PerspectiveProjectionTransform<double> itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::PerspectiveProjectionTransformType

template<class IntensityType = float>

typedef SmartPointer<Self> itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::Pointer

template<class IntensityType = float>

typedef ProjectionGeometryType::Pointer itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::ProjectionGeometryPointer

template<class IntensityType = float>

typedef itk::ProjectionGeometry<IntensityType> itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::ProjectionGeometryType

template<class IntensityType = float>

typedef ForwardAndBackProjectionDifferenceFilter itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::Self

Standard class typedefs.

template<class IntensityType = float>

typedef Subtract2DImageFromVolumeSliceFilterType::Pointer itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::Subtract2DImageFromVolumeSliceFilterPointer

template<class IntensityType = float>

typedef itk::Subtract2DImageFromVolumeSliceFilter<IntensityType> itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::Subtract2DImageFromVolumeSliceFilterType

template<class IntensityType = float>

typedef ImageToImageFilter<Image< IntensityType, 3>, Image< IntensityType, 3> > itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::Superclass

Constructor & Destructor Documentation

template<class IntensityType = float>

itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::ForwardAndBackProjectionDifferenceFilter ( )

protected

template<class IntensityType = float>

virtual itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::~ForwardAndBackProjectionDifferenceFilter ( )

inlineprotectedvirtual

Member Function Documentation

template<class IntensityType = float>

void itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::ClearVolumePriorToNextBackProjection ( void  )

inline

Set the backprojection volume to zero prior to the next back-projection.

template<class IntensityType = float>

virtual void itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::EnlargeOutputRequestedRegion ( DataObject *  output )

virtual

template<class IntensityType = float>

void itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::GenerateData ( )

protected

The function called when the filter is executed.

template<class IntensityType = float>

virtual void itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::GenerateInputRequestedRegion ( )

virtual

Rather than calculate the input requested region for a particular back-projection (which might take longer than the actual projection), we simply set the input requested region to the entire area of the current 3D volume.

See also

ProcessObject::GenerateInputRequestedRegion()

template<class IntensityType = float>

virtual const char* itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::GetClassName ( ) const

virtual

Run-time type information (and related methods).

template<class IntensityType = float>

InputVolumePointer itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::GetPointerToInputVolume

(

void

)

Return a pointer to the input volume

template<class IntensityType = float>

virtual ProjectionGeometryType* itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::GetProjectionGeometry ( )

virtual

template<class IntensityType = float>

void itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::Initialise

(

void

)

Initialise the image pipeline.

template<class IntensityType = float>

itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::itkStaticConstMacro	(	InputVolumeDimension	,
		unsigned	int,
		InputVolumeType::ImageDimension
	)

ImageDimension enumeration

template<class IntensityType = float>

itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::itkStaticConstMacro	(	OutputBackProjectedDifferencesDimension	,
		unsigned	int,
		OutputBackProjectedDifferencesType::ImageDimension
	)

template<class IntensityType = float>

static Pointer itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::New ( )

static

Method for creation through the object factory.

template<class IntensityType = float>

void itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::PrintSelf ( std::ostream &  os, Indent  indent  ) const

protected

template<class IntensityType = float>

void itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::SetInputProjectionVolume

(

InputProjectionVolumeType *

im2D

)

Set the input 3D volume of projection image.

template<class IntensityType = float>

void itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::SetInputVolume

(

InputVolumeType *

im3D

)

Set the 3D reconstruction estimate volume input.

template<class IntensityType = float>

virtual void itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::SetProjectionGeometry ( ProjectionGeometryType *  _arg )

virtual

Get/Set the projection geometry.

template<class IntensityType = float>

virtual void itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::VerifyInputInformation ( )

inlineprotectedvirtual

We don't expect the input volume and projection images to be in the same space so we override this method

Member Data Documentation

template<class IntensityType = float>

BackwardImageProjector2Dto3DPointer itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::m_BackProjector

protected

The back-projector.

template<class IntensityType = float>

bool itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::m_FlagPipelineInitialised

protected

Flag indicating whether the filter has been initialised.

template<class IntensityType = float>

ForwardImageProjector3Dto2DPointer itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::m_ForwardProjector

protected

The forward-projector.

template<class IntensityType = float>

unsigned int itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::m_NumberOfProjections

protected

The number of projection images.

template<class IntensityType = float>

ProjectionGeometryPointer itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::m_ProjectionGeometry

protected

The specific projection geometry to be used.

template<class IntensityType = float>

Subtract2DImageFromVolumeSliceFilterPointer itk::ForwardAndBackProjectionDifferenceFilter< IntensityType >::m_SubtractProjectionFromEstimate

protected

A filter to perform the subtraction.

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The documentation for this class was generated from the following file:

• itkForwardAndBackProjectionDifferenceFilter.h