ImageAcquisition Class Reference

#include <ImageAcquisition.h>

Inheritance diagram for ImageAcquisition:

Public Types
typedef float	PrecisionType

Public Member Functions
	ImageAcquisition ()
virtual	~ImageAcquisition ()
virtual nifti_image *	SimulateImageAcquisition (nifti_image *imgInFullImgSpace, nifti_image *imgInAcquisitionSpace, unsigned int dynamicImageTimePoint)=0
virtual void	CalculateAdjoint (nifti_image *imgInFullImgSpace, nifti_image *imgInAcquisitionSpace, unsigned int dynamicImageTimePoint)=0
virtual nifti_image *	AllocateMinimumSizeImgInFullImgSpace (nifti_image *imgInFullImgSpace, nifti_image *imgInAcquisitionSpace, unsigned int dynamicImageTimePoint)=0
virtual nifti_image *	GetImageAfterAdjoint ()
virtual nifti_image *	GetWeightsImageAfterAdjoint ()

Protected Member Functions
virtual void	AllocateImageAfterAdjoint ()=0
virtual void	AllocateWeightsImageAfterAdjoint ()
virtual void	ClearImageAfterAdjoint ()
virtual void	ClearWeightsImageAfterAdjoint ()

Protected Attributes
nifti_image *	imageAfterAdjoint
nifti_image *	weightsImageAfterAdjoint
nifti_image *	curImageInAcquisitionSpace
	Current image in acquisition space. More...
nifti_image *	curImageInFullImgSpace
	Current image in full image space. More...
unsigned int	curDynamicImageTimePoint
	Current dynamic image time point. More...

Detailed Description

Base class defining the image acquisition interface.

Member Typedef Documentation

PrecisionType

typedef float ImageAcquisition::PrecisionType

Constructor & Destructor Documentation

ImageAcquisition()

ImageAcquisition::ImageAcquisition

(

)

Constructor

~ImageAcquisition()

ImageAcquisition::~ImageAcquisition ( )

virtual

Destructor

Member Function Documentation

AllocateImageAfterAdjoint()

virtual void ImageAcquisition::AllocateImageAfterAdjoint ( )

protectedpure virtual

Implemented in LowResolutionImageAcquisition, and NoImageAcquisition.

AllocateMinimumSizeImgInFullImgSpace()

virtual nifti_image * ImageAcquisition::AllocateMinimumSizeImgInFullImgSpace ( nifti_image *  imgInFullImgSpace, nifti_image *  imgInAcquisitionSpace, unsigned int  dynamicImageTimePoint  )

pure virtual

Allocate an empty image in full image space that has the minimum required size to simulate the image acquisition. This allows, for instance, efficient warping of the image in full image space without the need to warp the full sized image. This has to be implemented by a derived class. This was usually used as the "warped" image in reg-resp.

Parameters

imgInFullImgSpace	The full sized image
imgInAcquisitionSpace	The image in acquisition space
dynamicImageTimePoint	Time point of the dynamic image (if used).

Implemented in LowResolutionImageAcquisition, and NoImageAcquisition.

AllocateWeightsImageAfterAdjoint()

void ImageAcquisition::AllocateWeightsImageAfterAdjoint ( )

protectedvirtual

CalculateAdjoint()

virtual void ImageAcquisition::CalculateAdjoint ( nifti_image *  imgInFullImgSpace, nifti_image *  imgInAcquisitionSpace, unsigned int  dynamicImageTimePoint  )

pure virtual

Calculate the adjoint of the image acquisition - also known as the back-projection for some imaging modalities. Needs to be implementd by derived class according to the image acquisition method. The adjoint image will be allocated internally and kept as a member variable. To access it, use GetImageAfterAdjoint. This image will be deleted by this object.

Parameters

imgInFullImgSpace	Pointer to nifti image holding the image in full image space.
imgInAcquisitionSpace	Pointer to the nifti image in acquisition space.
dynamicImageTimePoint	The dynamic image time point in case time-dependent meta data needs to be used internally.

Implemented in LowResolutionImageAcquisition, and NoImageAcquisition.

ClearImageAfterAdjoint()

void ImageAcquisition::ClearImageAfterAdjoint ( )

protectedvirtual

ClearWeightsImageAfterAdjoint()

void ImageAcquisition::ClearWeightsImageAfterAdjoint ( )

protectedvirtual

GetImageAfterAdjoint()

nifti_image * ImageAcquisition::GetImageAfterAdjoint ( )

virtual

Get a pointer to the image after adjoint (after the back-projection)

Returns

Returns a pointer to the nifti image calculated by the function CalculateAdjoint.

GetWeightsImageAfterAdjoint()

nifti_image * ImageAcquisition::GetWeightsImageAfterAdjoint ( )

virtual

Get a copy to the weights image after adjoint

SimulateImageAcquisition()

virtual nifti_image * ImageAcquisition::SimulateImageAcquisition ( nifti_image *  imgInFullImgSpace, nifti_image *  imgInAcquisitionSpace, unsigned int  dynamicImageTimePoint  )

pure virtual

Simulate the image acquisition also known as a forward-projection depending on the imaging modality. Needs to be implemented by derived class depending on the image acquisition method. The returned image should be allocated by this function and deleted after use externally(see return ).

Parameters

imgInFullImgSpace	Pointer to nifti image holding the image in full image space.
imgInAcquisitionSpace	Pointer to the nifti image in acquisition space.
dynamicImageTimePoint	The dynamic image time point in case time-dependent meta data needs to be used internally.

Returns

Pointer to the simulated dyanmic image. This image will be allocated by this function and is expected to be deleted after usaage using nifti_image_free() .

Implemented in LowResolutionImageAcquisition, and NoImageAcquisition.

Member Data Documentation

curDynamicImageTimePoint

unsigned int ImageAcquisition::curDynamicImageTimePoint

protected

Current dynamic image time point.

curImageInAcquisitionSpace

nifti_image* ImageAcquisition::curImageInAcquisitionSpace

protected

Current image in acquisition space.

curImageInFullImgSpace

nifti_image* ImageAcquisition::curImageInFullImgSpace

protected

Current image in full image space.

imageAfterAdjoint

nifti_image* ImageAcquisition::imageAfterAdjoint

protected

weightsImageAfterAdjoint

nifti_image* ImageAcquisition::weightsImageAfterAdjoint

protected

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

• motion-lib/ImageAcquisition.h
• motion-lib/ImageAcquisition.cpp