ParametricGeometryGenerator Class Reference

#include <ImFusion/CT/Geometry/ParametricGeometryGenerator.h>

Parametric geometry generator for regular CBCT acquisition trajectories. More...

Inheritance diagram for ParametricGeometryGenerator:

Detailed Description

Parametric geometry generator for regular CBCT acquisition trajectories.

Defines cone-beam geometry using parametric description (angular range, source-detector distance, etc.).

Public Member Functions
	ParametricGeometryGenerator (const ConeBeamGeometry &geom)
	ParametricGeometryGenerator (const SharedImageSet &sis)
std::unique_ptr< GeometryGenerator >	clone () const override
	Factory method to create a clone of the generator.
std::string	id () const override
	Provides a unique identifier for the generator.
std::vector< GeometryUtils::FullGeometryRepresentation >	computeFullGeometryRepresentation (const SharedImageSet &sis) const
	Compute the full geometry representation for all frames in the SharedImageSet.
GeometryUtils::FullGeometryRepresentation	computeFullGeometryRepresentation (const SharedImageSet &sis, int frame) const
	Compute the full geometry representation for a single frame in the SharedImageSet.
Public Member Functions inherited from GlobalTransformationGeneratorBase
	GlobalTransformationGeneratorBase (const SharedImageSet &sis)
Public Member Functions inherited from GeometryGenerator
	GeometryGenerator (const SharedImageSet &sis)
void	configuration (Properties *p) const override
	Serialize the current object configuration into the given Properties object.
std::vector< GeometryUtils::FullGeometryRepresentation >	computeFullGeometryRepresentation (const SharedImageSet &sis) const
	Compute the full geometry representation for all frames in the SharedImageSet.
GeometryUtils::FullGeometryRepresentation	computeFullGeometryRepresentation (const SharedImageSet &sis, int frame) const
	Compute the full geometry representation for a single frame in the SharedImageSet.
std::unique_ptr< ParameterWrapperBase >	createParameterWrapper (SharedImageSet &sis) const
	Generates a ParameterWrapperBase for the generator.
bool	operator== (const GeometryGenerator &other)
	Compares members for equality.
Public Member Functions inherited from Configurable
virtual void	configure (const Properties *p)
	Configure this object instance by de-serializing the given Properties.
virtual void	configureDefaults ()
	Retrieve the properties of this object, replaces values with their defaults and sets it again.
void	registerParameter (ParameterBase *param)
	Register the given Parameter or SubProperty, so that it will be configured during configure()/configuration().
void	unregisterParameter (const ParameterBase *param)
	Remove the given Parameter or SubProperty from the list of registered parameters.
	Configurable (const Configurable &rhs)
	Configurable (Configurable &&rhs) noexcept
Configurable &	operator= (const Configurable &)
Configurable &	operator= (Configurable &&) noexcept

Static Public Member Functions
static ParametricGeometryGenerator	getOrFitParametricGeometry (const SharedImageSet &sis)
	If:

Trajectory parameters
Parameter< double >	p_sourceDetDistance = {"sourceDetDistance", 0.0, this}
	Source to center of detector distance (in mm)
Parameter< double >	p_sourcePatDistance = {"sourcePatDistance", 0.0, this}
	Source to patient distance (in mm)
Parameter< double >	p_angleRange = {"angleRange", 0.0, this}
	Entire rotation range in degrees.

Detector parameters
Parameter< double >	p_detSrcXShift = {"detSrcXShift", 0.0, this}
	Horizontal detector AND source shift in x direction (in mm)
Parameter< double >	p_detRotation = {"detRotation", 0.0, this}
	Detector rotation in degrees.
Parameter< vec2 >	p_detShear
	Detector shear, i.e. principal point offset x in mm.

Additional Inherited Members
Public Attributes inherited from GlobalTransformationGeneratorBase
SubProperty< RelativeTransformationSetupWrapper >	p_transformationSetup
	The transformation.
Public Attributes inherited from Configurable
Signal	signalParametersChanged
	Emitted whenever one of the registered Parameters' or SubPropertys' signalValueChanged signal was emitted.
Protected Attributes inherited from Configurable
std::vector< Param >	m_params
	List of all registered Parameter and SubProperty instances.

Member Function Documentation

getOrFitParametricGeometry()

static ParametricGeometryGenerator getOrFitParametricGeometry ( const SharedImageSet & sis )

static

If:

• the geometry is legacy, return the legacy geometry converted to parametric geometry
• the geometry is parametric, return the parametric geometry
• the geometry is not parametric, fit a parametric geometry and return it

clone()

std::unique_ptr< GeometryGenerator > clone ( ) const

overridevirtual

Factory method to create a clone of the generator.

Implements GeometryGenerator.

id()

std::string id ( ) const

inlineoverridevirtual

Provides a unique identifier for the generator.

Implements GeometryGenerator.

computeFullGeometryRepresentation() [1/2]

std::vector< GeometryUtils::FullGeometryRepresentation > computeFullGeometryRepresentation

(

const SharedImageSet &

sis

)

const

Compute the full geometry representation for all frames in the SharedImageSet.

Parameters

sis	The SharedImageSet to compute the geometry for.

Returns

A vector of FullGeometryRepresentation for each frame in the SharedImageSet.

Note

Can utilize DetectorDataComponent::p_persistentIndex to keep track of the original index of the frame.

The implementation calls computeFullGeometryRepresentation(const SharedImageSet&, int) for each frame.

computeFullGeometryRepresentation() [2/2]

GeometryUtils::FullGeometryRepresentation computeFullGeometryRepresentation	(	const SharedImageSet &	sis,
		int	frame ) const

Compute the full geometry representation for a single frame in the SharedImageSet.

Parameters

sis	The SharedImageSet to compute the geometry for.
frame	The frame to compute the geometry for.

Returns

The FullGeometryRepresentation for the given frame.

Member Data Documentation

p_detShear

Parameter<vec2> p_detShear

Initial value:

= {
            "detShear",
            vec2::Zero(),
            this}

Detector shear, i.e. principal point offset x in mm.

Note

In contrast to the legacy ConeBeamGeometry, the offset in y is pointing down.

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

• ImFusion/CT/Geometry/ParametricGeometryGenerator.h