itk::BackwardImageProjector2Dto3D< IntensityType > Class Template Reference

Class to project a 3D image into 2D. More...

Inheritance diagram for itk::BackwardImageProjector2Dto3D< IntensityType >:

Collaboration diagram for itk::BackwardImageProjector2Dto3D< IntensityType >:

Classes
struct	BackwardImageProjectorThreadStruct

Public Types
typedef BackwardImageProjector2Dto3D	Self
typedef SmartPointer< Self >	Pointer
typedef SmartPointer< const Self >	ConstPointer
typedef ImageProjectionBaseClass2D3D < Image< IntensityType, 2 > , Image< IntensityType, 3 > >	Superclass
typedef Image< IntensityType, 2 >	InputImageType
typedef InputImageType::Pointer	InputImagePointer
typedef InputImageType::ConstPointer	InputImageConstPointer
typedef InputImageType::RegionType	InputImageRegionType
typedef InputImageType::SizeType	InputImageSizeType
typedef InputImageType::SpacingType	InputImageSpacingType
typedef InputImageType::PointType	InputImagePointType
typedef InputImageType::IndexType	InputImageIndexType
typedef InputImageType::PixelType	InputImagePixelType
typedef Image< IntensityType, 3 >	OutputImageType
typedef OutputImageType::Pointer	OutputImagePointer
typedef OutputImageType::ConstPointer	OutputImageConstPointer
typedef OutputImageType::RegionType	OutputImageRegionType
typedef OutputImageType::SizeType	OutputImageSizeType
typedef OutputImageType::SpacingType	OutputImageSpacingType
typedef OutputImageType::PixelType	OutputImagePixelType
typedef OutputImageType::PointType	OutputImagePointType
Public Types inherited from itk::ImageProjectionBaseClass2D3D< Image< IntensityType, 2 >, Image< IntensityType, 3 > >
typedef ImageProjectionBaseClass2D3D	Self
typedef ImageToImageFilter < Image< IntensityType, 2 > , Image< IntensityType, 3 > >	Superclass
typedef SmartPointer< Self >	Pointer
typedef SmartPointer< const Self >	ConstPointer
typedef Image< IntensityType, 2 >	InputImageType
typedef InputImageType::Pointer	InputImagePointer
typedef InputImageType::RegionType	InputImageRegionType
typedef InputImageType::PixelType	InputImagePixelType
typedef Image< IntensityType, 3 >	OutputImageType
typedef OutputImageType::Pointer	OutputImagePointer
typedef OutputImageType::RegionType	OutputImageRegionType
typedef OutputImageType::PixelType	OutputImagePixelType
typedef EulerAffineTransform < double, 3, 3 >	EulerAffineTransformType
typedef PerspectiveProjectionTransform < double >	PerspectiveProjectionTransformType

Public Member Functions
virtual const char *	GetClassName () const
	itkStaticConstMacro (InputImageDimension, unsigned int, 2)
	itkStaticConstMacro (OutputImageDimension, unsigned int, 3)
virtual void	GenerateOutputInformation ()
virtual void	GenerateInputRequestedRegion ()
virtual void	EnlargeOutputRequestedRegion (DataObject *output)
void	SetBackProjectedImageSize (OutputImageSizeType &outImageSize)
	Set the size in voxels of the output back-projected image. More...
void	SetBackProjectedImageSpacing (OutputImageSpacingType &outImageSpacing)
	Set the resolution in mm of the output back-projected image. More...
void	SetBackProjectedImageOrigin (OutputImagePointType &outImageOrigin)
	Set the origin of the output back-projected image. More...
void	SetSingleThreadedExecution (void)
	For debugging purposes, set single threaded execution. More...
void	ClearVolumePriorToNextBackProjection (void)
	Set the backprojection volume to zero prior to the next back-projection. More...
Public Member Functions inherited from itk::ImageProjectionBaseClass2D3D< Image< IntensityType, 2 >, Image< IntensityType, 3 > >
	itkStaticConstMacro (InputImageDimension, unsigned int, Image< IntensityType, 2 >::ImageDimension)
	itkStaticConstMacro (OutputImageDimension, unsigned int, Image< IntensityType, 3 >::ImageDimension)
virtual void	SetAffineTransform (EulerAffineTransformType *_arg)
	Set the affine transformation. More...
virtual EulerAffineTransformType *	GetAffineTransform ()
	Get the affine transformation. More...
virtual void	SetPerspectiveTransform (PerspectiveProjectionTransformType *_arg)
	Set the perspective transformation. More...
virtual PerspectiveProjectionTransformType *	GetPerspectiveTransform ()
	Get the perspective transformation. More...

Static Public Member Functions
static Pointer	New ()
Static Public Member Functions inherited from itk::ImageProjectionBaseClass2D3D< Image< IntensityType, 2 >, Image< IntensityType, 3 > >
static Pointer	New ()

Protected Member Functions
	BackwardImageProjector2Dto3D ()
virtual	~BackwardImageProjector2Dto3D ()
void	PrintSelf (std::ostream &os, Indent indent) const
void	ClearVolume (void)
	Do we need to set the volume to zero? More...
virtual void	BeforeThreadedGenerateData (void)
virtual void	AfterThreadedGenerateData (void)
void	GenerateData ()
void	ThreadedGenerateData (const InputImageRegionType &inputRegionForThread, ThreadIdType threadId)
int	SplitRequestedRegion (int i, int num, InputImageRegionType &splitRegion)
Protected Member Functions inherited from itk::ImageProjectionBaseClass2D3D< Image< IntensityType, 2 >, Image< IntensityType, 3 > >
	ImageProjectionBaseClass2D3D ()
virtual	~ImageProjectionBaseClass2D3D ()
void	PrintSelf (std::ostream &os, Indent indent) const

Static Protected Member Functions
static ITK_THREAD_RETURN_TYPE	BackwardImageProjectorThreaderCallback (void *arg)

Protected Attributes
OutputImageSizeType	m_OutputImageSize
	The size of the output projected image. More...
OutputImageSpacingType	m_OutputImageSpacing
	The resolution of the output projected image. More...
OutputImagePointType	m_OutputImageOrigin
	The origin of the output projected image. More...
bool	m_FlagMultiThreadedExecution
	Flag to turn multithreading on or off. More...
bool	m_ClearBackProjectedVolume
	Flag that back-projected volume should be filled with zeros. More...
OutputImagePointer	m_VoxelRayCount
Protected Attributes inherited from itk::ImageProjectionBaseClass2D3D< Image< IntensityType, 2 >, Image< IntensityType, 3 > >
EulerAffineTransformType::Pointer	m_AffineTransform
	The affine transform. More...
PerspectiveProjectionTransformType::Pointer	m_PerspectiveTransform

Detailed Description

template<class IntensityType = float>
class itk::BackwardImageProjector2Dto3D< IntensityType >

Class to project a 3D image into 2D.

Member Typedef Documentation

template<class IntensityType = float>

typedef SmartPointer<const Self> itk::BackwardImageProjector2Dto3D< IntensityType >::ConstPointer

template<class IntensityType = float>

typedef InputImageType::ConstPointer itk::BackwardImageProjector2Dto3D< IntensityType >::InputImageConstPointer

template<class IntensityType = float>

typedef InputImageType::IndexType itk::BackwardImageProjector2Dto3D< IntensityType >::InputImageIndexType

template<class IntensityType = float>

typedef InputImageType::PixelType itk::BackwardImageProjector2Dto3D< IntensityType >::InputImagePixelType

template<class IntensityType = float>

typedef InputImageType::Pointer itk::BackwardImageProjector2Dto3D< IntensityType >::InputImagePointer

template<class IntensityType = float>

typedef InputImageType::PointType itk::BackwardImageProjector2Dto3D< IntensityType >::InputImagePointType

template<class IntensityType = float>

typedef InputImageType::RegionType itk::BackwardImageProjector2Dto3D< IntensityType >::InputImageRegionType

template<class IntensityType = float>

typedef InputImageType::SizeType itk::BackwardImageProjector2Dto3D< IntensityType >::InputImageSizeType

template<class IntensityType = float>

typedef InputImageType::SpacingType itk::BackwardImageProjector2Dto3D< IntensityType >::InputImageSpacingType

template<class IntensityType = float>

typedef Image<IntensityType, 2> itk::BackwardImageProjector2Dto3D< IntensityType >::InputImageType

Some convenient typedefs.

template<class IntensityType = float>

typedef OutputImageType::ConstPointer itk::BackwardImageProjector2Dto3D< IntensityType >::OutputImageConstPointer

template<class IntensityType = float>

typedef OutputImageType::PixelType itk::BackwardImageProjector2Dto3D< IntensityType >::OutputImagePixelType

template<class IntensityType = float>

typedef OutputImageType::Pointer itk::BackwardImageProjector2Dto3D< IntensityType >::OutputImagePointer

template<class IntensityType = float>

typedef OutputImageType::PointType itk::BackwardImageProjector2Dto3D< IntensityType >::OutputImagePointType

template<class IntensityType = float>

typedef OutputImageType::RegionType itk::BackwardImageProjector2Dto3D< IntensityType >::OutputImageRegionType

template<class IntensityType = float>

typedef OutputImageType::SizeType itk::BackwardImageProjector2Dto3D< IntensityType >::OutputImageSizeType

template<class IntensityType = float>

typedef OutputImageType::SpacingType itk::BackwardImageProjector2Dto3D< IntensityType >::OutputImageSpacingType

template<class IntensityType = float>

typedef Image<IntensityType, 3> itk::BackwardImageProjector2Dto3D< IntensityType >::OutputImageType

template<class IntensityType = float>

typedef SmartPointer<Self> itk::BackwardImageProjector2Dto3D< IntensityType >::Pointer

template<class IntensityType = float>

typedef BackwardImageProjector2Dto3D itk::BackwardImageProjector2Dto3D< IntensityType >::Self

Standard class typedefs.

template<class IntensityType = float>

typedef ImageProjectionBaseClass2D3D<Image< IntensityType, 2>, Image< IntensityType, 3> > itk::BackwardImageProjector2Dto3D< IntensityType >::Superclass

Constructor & Destructor Documentation

template<class IntensityType = float>

itk::BackwardImageProjector2Dto3D< IntensityType >::BackwardImageProjector2Dto3D ( )

protected

template<class IntensityType = float>

virtual itk::BackwardImageProjector2Dto3D< IntensityType >::~BackwardImageProjector2Dto3D ( )

inlineprotectedvirtual

Member Function Documentation

template<class IntensityType = float>

virtual void itk::BackwardImageProjector2Dto3D< IntensityType >::AfterThreadedGenerateData ( void  )

protectedvirtual

Perform some operation immediately after the back projection.

template<class IntensityType = float>

static ITK_THREAD_RETURN_TYPE itk::BackwardImageProjector2Dto3D< IntensityType >::BackwardImageProjectorThreaderCallback ( void *  arg )

staticprotected

Static function used as a "callback" by the MultiThreader. The threading library will call this routine for each thread, which will delegate the control to ThreadedGenerateData().

template<class IntensityType = float>

virtual void itk::BackwardImageProjector2Dto3D< IntensityType >::BeforeThreadedGenerateData ( void  )

protectedvirtual

Initialise data prior to back projection (such as filling the back-projected volume with zeros).

template<class IntensityType = float>

void itk::BackwardImageProjector2Dto3D< IntensityType >::ClearVolume ( void  )

protected

Do we need to set the volume to zero?

template<class IntensityType = float>

void itk::BackwardImageProjector2Dto3D< IntensityType >::ClearVolumePriorToNextBackProjection ( void  )

inline

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

template<class IntensityType = float>

virtual void itk::BackwardImageProjector2Dto3D< IntensityType >::EnlargeOutputRequestedRegion ( DataObject *  output )

virtual

template<class IntensityType = float>

void itk::BackwardImageProjector2Dto3D< IntensityType >::GenerateData ( )

protected

The version in ImageSource is overloaded here because we want to thread execution by splitting the input 2D image not the output 3D volume.

template<class IntensityType = float>

virtual void itk::BackwardImageProjector2Dto3D< 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 2D input image region. Therefore needs to provide an implementation for GenerateInputRequestedRegion() in order to inform the pipeline execution model.

See also

ProcessObject::GenerateInputRequestedRegion()

template<class IntensityType = float>

virtual void itk::BackwardImageProjector2Dto3D< IntensityType >::GenerateOutputInformation ( )

virtual

BackwardImageProjector2Dto3D produces a 3D ouput image which is a different resolution and with a different pixel spacing than its 2D input image (obviously). As such, BackwardImageProjector3Dto2D needs to provide an implementation for GenerateOutputInformation() in order to inform the pipeline execution model. The original documentation of this method is below.

See also

ProcessObject::GenerateOutputInformaton()

template<class IntensityType = float>

virtual const char* itk::BackwardImageProjector2Dto3D< IntensityType >::GetClassName ( ) const

virtual

Run-time type information (and related methods).

Reimplemented from itk::ImageProjectionBaseClass2D3D< Image< IntensityType, 2 >, Image< IntensityType, 3 > >.

template<class IntensityType = float>

itk::BackwardImageProjector2Dto3D< IntensityType >::itkStaticConstMacro	(	InputImageDimension	,
		unsigned	int,
		2
	)

ImageDimension enumeration

template<class IntensityType = float>

itk::BackwardImageProjector2Dto3D< IntensityType >::itkStaticConstMacro	(	OutputImageDimension	,
		unsigned	int,
		3
	)

template<class IntensityType = float>

static Pointer itk::BackwardImageProjector2Dto3D< IntensityType >::New ( )

static

Method for creation through the object factory.

template<class IntensityType = float>

void itk::BackwardImageProjector2Dto3D< IntensityType >::PrintSelf ( std::ostream &  os, Indent  indent  ) const

protected

template<class IntensityType = float>

void itk::BackwardImageProjector2Dto3D< IntensityType >::SetBackProjectedImageOrigin ( OutputImagePointType &  outImageOrigin )

inline

Set the origin of the output back-projected image.

template<class IntensityType = float>

void itk::BackwardImageProjector2Dto3D< IntensityType >::SetBackProjectedImageSize ( OutputImageSizeType &  outImageSize )

inline

Set the size in voxels of the output back-projected image.

template<class IntensityType = float>

void itk::BackwardImageProjector2Dto3D< IntensityType >::SetBackProjectedImageSpacing ( OutputImageSpacingType &  outImageSpacing )

inline

Set the resolution in mm of the output back-projected image.

template<class IntensityType = float>

void itk::BackwardImageProjector2Dto3D< IntensityType >::SetSingleThreadedExecution ( void  )

inline

For debugging purposes, set single threaded execution.

template<class IntensityType = float>

int itk::BackwardImageProjector2Dto3D< IntensityType >::SplitRequestedRegion ( int  i, int  num, InputImageRegionType &  splitRegion  )

protected

Split the output's RequestedRegion into "num" pieces, returning region "i" as "splitRegion". This method is called "num" times. The regions must not overlap. The method returns the number of pieces that the routine is capable of splitting the input RequestedRegion, i.e. return value is less than or equal to "num".

template<class IntensityType = float>

void itk::BackwardImageProjector2Dto3D< IntensityType >::ThreadedGenerateData ( const InputImageRegionType &  inputRegionForThread, ThreadIdType  threadId  )

protected

This function is modified to thread based on the input 2D image

Member Data Documentation

template<class IntensityType = float>

bool itk::BackwardImageProjector2Dto3D< IntensityType >::m_ClearBackProjectedVolume

protected

Flag that back-projected volume should be filled with zeros.

template<class IntensityType = float>

bool itk::BackwardImageProjector2Dto3D< IntensityType >::m_FlagMultiThreadedExecution

protected

Flag to turn multithreading on or off.

template<class IntensityType = float>

OutputImagePointType itk::BackwardImageProjector2Dto3D< IntensityType >::m_OutputImageOrigin

protected

The origin of the output projected image.

template<class IntensityType = float>

OutputImageSizeType itk::BackwardImageProjector2Dto3D< IntensityType >::m_OutputImageSize

protected

The size of the output projected image.

template<class IntensityType = float>

OutputImageSpacingType itk::BackwardImageProjector2Dto3D< IntensityType >::m_OutputImageSpacing

protected

The resolution of the output projected image.

template<class IntensityType = float>

OutputImagePointer itk::BackwardImageProjector2Dto3D< IntensityType >::m_VoxelRayCount

protected

A volume equal in size to the back-projected volume which keeps a count of the number of rays contributing to each voxel in the back-projected volume.

---

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

• itkBackwardImageProjector2Dto3D.h