ProjectionSets Class Reference

#include <ImFusion/CT/ProjectionSets.h>

Computation of projection subsets for iterative reconstruction. More...

Detailed Description

Computation of projection subsets for iterative reconstruction.

Generates ordered subsets for ordered-subset iterative algorithms like OS-EM.

Public Types
enum class	SetMode { Orthogonal = 0 , Random = 1 , Special = 2 }

Public Member Functions
	ProjectionSets (const ConeBeamGeometry *geom)
	Constructor.
void	setMode (SetMode mode)
	Set the subset mode.
void	compute (int numProj, int setSize)
	Compute subsets given number of projections and desired set size.
int	size () const
	Returns the number of sets.
const std::vector< int > &	operator[] (int i) const
	Returns a chosen set.

Protected Attributes
const ConeBeamGeometry *	m_geom
	Geometry of the ConeBeamData.
SetMode	m_mode = SetMode::Orthogonal
	Sub-set mode.
std::vector< std::vector< int > >	m_sets
	Indices of the projection image sets.

Member Enumeration Documentation

SetMode

enum class SetMode

strong

Enumerator
Orthogonal	Orthogonal subset generation (maximally separated angles)
Random	Random subset generation.
Special	Special subset generation mode.

Constructor & Destructor Documentation

ProjectionSets()

ProjectionSets

(

const ConeBeamGeometry *

geom

)

Constructor.

Parameters

geom	Cone-beam geometry for angle information

Member Function Documentation

setMode()

void setMode ( SetMode mode )

inline

Set the subset mode.

Parameters

mode	Subset generation mode

compute()

void compute	(	int	numProj,
		int	setSize )

Compute subsets given number of projections and desired set size.

Parameters

numProj	Total number of projections
setSize	Desired size of each subset

size()

int size ( ) const

inline

Returns the number of sets.

Returns

Number of computed subsets

operator[]()

const std::vector< int > & operator[] ( int i ) const

inline

Returns a chosen set.

Parameters

i	Index of the subset

Returns

Vector of projection indices in the subset

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

• ImFusion/CT/ProjectionSets.h