Enhance M-dimensional objects in N-dimensional images. More...

#include <sitkObjectnessMeasureImageFilter.h>

Inheritance diagram for itk::simple::ObjectnessMeasureImageFilter:

Collaboration diagram for itk::simple::ObjectnessMeasureImageFilter:

Detailed Description

Enhance M-dimensional objects in N-dimensional images.

This filter is a generalization of Frangi's vesselness measurement for detecting M-dimensional object in N-dimensional space. For example a vessel is a 1-D object in 3-D space. The filter can enhance blob-like structures (M=0), vessel-like structures (M=1), 2D plate-like structures (M=2), hyper-plate-like structures (M=3) in N-dimensional images, with M<N.

This filter takes a scalar image as input and produces a real valued image as output which contains the objectness measure at each pixel. Internally, it computes a Hessian via discrete central differences. Before applying this filter it is expected that a Gaussian smoothing filter at an appropriate scale (sigma) was applied to the input image.

\[ R_A = \frac{|\lambda_2|}{|\lambda_3|}, \; R_B = \frac{|\lambda_2|}{|\lambda_2\lambda_3|}, \; S = \sqrt{\lambda_1^2+\lambda_2^2+\lambda_3^2} \]

\[ V_{\sigma}= \begin{cases} (1-e^{-\frac{R_A^2}{2\alpha^2}}) \cdot e^{\frac{R_B^2}{2\beta^2}} \cdot (1-e^{-\frac{S^2}{2\gamma^2}}) & \text{if } \lambda_2<0 \text{ and } \lambda_3<0 \text{,}\\ 0 & \text{otherwise} \end{cases} \]

References: Antiga, L. Generalizing vesselness with respect to dimensionality and shape. https://hdl.handle.net/1926/576

: Frangi, AF, Niessen, WJ, Vincken, KL, & Viergever, MA (1998). Multiscale Vessel Enhancement Filtering. In Wells, WM, Colchester, A, & Delp, S, Editors, MICCAI '98 Medical Image Computing and Computer-Assisted Intervention, Lecture Notes in Computer Science, pages 130-137, Springer Verlag, 1998.

See also: itk::HessianToObjectnessMeasureImageFilter; itk::simple::ObjectnessMeasure for the procedural interface; itk::ObjectnessMeasureImageFilter for the Doxygen on the original ITK class.

Definition at line 55 of file sitkObjectnessMeasureImageFilter.h.

Public Types
using	PixelIDTypeList = RealPixelIDTypeList

using	Self = ObjectnessMeasureImageFilter

Public Types inherited from itk::simple::ImageFilter
using	Self = ImageFilter

Public Types inherited from itk::simple::ProcessObject
using	Self = ProcessObject

Public Member Functions
Self &	BrightObjectOff ()

Self &	BrightObjectOn ()

Image	Execute (const Image &image1)

double	GetAlpha () const

double	GetBeta () const

bool	GetBrightObject () const

double	GetGamma () const

std::string	GetName () const

unsigned int	GetObjectDimension () const

bool	GetScaleObjectnessMeasure () const

	ObjectnessMeasureImageFilter ()

Self &	ScaleObjectnessMeasureOff ()

Self &	ScaleObjectnessMeasureOn ()

Self &	SetAlpha (double Alpha)

Self &	SetBeta (double Beta)

Self &	SetBrightObject (bool BrightObject)

Self &	SetGamma (double Gamma)

Self &	SetObjectDimension (unsigned int ObjectDimension)

Self &	SetScaleObjectnessMeasure (bool ScaleObjectnessMeasure)

std::string	ToString () const

virtual	~ObjectnessMeasureImageFilter ()

Public Member Functions inherited from itk::simple::ImageFilter
	ImageFilter ()

virtual	~ImageFilter ()=0

Public Member Functions inherited from itk::simple::ProcessObject
virtual void	Abort ()

virtual int	AddCommand (itk::simple::EventEnum event, const std::function< void()> &func)
	Directly add a callback to observe an event.

virtual int	AddCommand (itk::simple::EventEnum event, itk::simple::Command &cmd)
	Add a Command Object to observer the event.

virtual float	GetProgress () const
	An Active Measurement of the progress of execution.

virtual bool	HasCommand (itk::simple::EventEnum event) const
	Query of this object has any registered commands for event.

	ProcessObject ()

virtual void	RemoveAllCommands ()
	Remove all registered commands.

virtual	~ProcessObject ()

virtual void	DebugOn ()

virtual void	DebugOff ()

virtual bool	GetDebug () const

virtual void	SetDebug (bool debugFlag)

virtual void	SetNumberOfThreads (unsigned int n)

virtual unsigned int	GetNumberOfThreads () const

virtual void	SetNumberOfWorkUnits (unsigned int n)

virtual unsigned int	GetNumberOfWorkUnits () const

Private Types
using	MemberFunctionType = Image (Self::*)( const Image& image1 )

Private Member Functions
template<class TImageType>
Image	ExecuteInternal (const Image &image1)

Private Attributes
double	m_Alpha {0.5}

double	m_Beta {0.5}

bool	m_BrightObject {true}

double	m_Gamma {5.0}

std::unique_ptr< detail::MemberFunctionFactory< MemberFunctionType > >	m_MemberFactory

unsigned int	m_ObjectDimension {1u}

bool	m_ScaleObjectnessMeasure {true}

Friends
struct	detail::MemberFunctionAddressor< MemberFunctionType >

Additional Inherited Members
Static Public Member Functions inherited from itk::simple::ProcessObject
static bool	GetGlobalDefaultDebug ()

static void	GlobalDefaultDebugOff ()

static void	GlobalDefaultDebugOn ()

static void	SetGlobalDefaultDebug (bool debugFlag)

static void	GlobalWarningDisplayOn ()

static void	GlobalWarningDisplayOff ()

static void	SetGlobalWarningDisplay (bool flag)

static bool	GetGlobalWarningDisplay ()

static double	GetGlobalDefaultCoordinateTolerance ()
	Access the global tolerance to determine congruent spaces.

static void	SetGlobalDefaultCoordinateTolerance (double)
	Access the global tolerance to determine congruent spaces.

static double	GetGlobalDefaultDirectionTolerance ()
	Access the global tolerance to determine congruent spaces.

static void	SetGlobalDefaultDirectionTolerance (double)
	Access the global tolerance to determine congruent spaces.

static bool	SetGlobalDefaultThreader (const std::string &threader)
	Set/Get the default threader used for process objects.

static std::string	GetGlobalDefaultThreader ()
	Set/Get the default threader used for process objects.

static void	SetGlobalDefaultNumberOfThreads (unsigned int n)

static unsigned int	GetGlobalDefaultNumberOfThreads ()
	Set/Get the default threader used for process objects.

Protected Member Functions inherited from itk::simple::ImageFilter
void	CheckImageMatchingDimension (const Image &image1, const Image &image2, const std::string &image2Name)

void	CheckImageMatchingPixelType (const Image &image1, const Image &image2, const std::string &image2Name)

void	CheckImageMatchingSize (const Image &image1, const Image &image2, const std::string &image2Name)

Protected Member Functions inherited from itk::simple::ProcessObject
virtual unsigned long	AddITKObserver (const itk::EventObject &, itk::Command *)

virtual itk::ProcessObject *	GetActiveProcess ()

virtual void	OnActiveProcessDelete ()

virtual void	onCommandDelete (const itk::simple::Command *cmd) noexcept

virtual void	PreUpdate (itk::ProcessObject *p)

virtual void	RemoveITKObserver (EventCommand &e)

Protected Member Functions inherited from itk::simple::NonCopyable
	NonCopyable ()=default

	NonCopyable (const NonCopyable &)=delete

NonCopyable &	operator= (const NonCopyable &)=delete

Static Protected Member Functions inherited from itk::simple::ImageFilter
template<class TImageType>
static void	FixNonZeroIndex (TImageType *img)

Static Protected Member Functions inherited from itk::simple::ProcessObject
template<class TImageType>
static TImageType::ConstPointer	CastImageToITK (const Image &img)

template<class TPixelType, unsigned int VImageDimension, unsigned int VLength, template< typename, unsigned int > class TVector>
static Image	CastITKToImage (itk::Image< TVector< TPixelType, VLength >, VImageDimension > *img)

template<unsigned int VImageDimension, unsigned int VLength, template< unsigned int > class TVector>
static Image	CastITKToImage (itk::Image< TVector< VLength >, VImageDimension > *img)

template<class TImageType>
static Image	CastITKToImage (TImageType *img)

static const itk::EventObject &	GetITKEventObject (EventEnum e)

template<typename T>
static std::ostream &	ToStringHelper (std::ostream &os, const T &v)

static std::ostream &	ToStringHelper (std::ostream &os, const char &v)

static std::ostream &	ToStringHelper (std::ostream &os, const signed char &v)

static std::ostream &	ToStringHelper (std::ostream &os, const unsigned char &v)

Member Typedef Documentation

◆ MemberFunctionType

using itk::simple::ObjectnessMeasureImageFilter::MemberFunctionType = Image (Self::*)( const Image& image1 )

private

Setup for member function dispatching

Definition at line 153 of file sitkObjectnessMeasureImageFilter.h.

◆ PixelIDTypeList

using itk::simple::ObjectnessMeasureImageFilter::PixelIDTypeList = RealPixelIDTypeList

Define the pixels types supported by this filter

Definition at line 67 of file sitkObjectnessMeasureImageFilter.h.

◆ Self

using itk::simple::ObjectnessMeasureImageFilter::Self = ObjectnessMeasureImageFilter

Definition at line 57 of file sitkObjectnessMeasureImageFilter.h.

Constructor & Destructor Documentation

◆ ~ObjectnessMeasureImageFilter()

virtual itk::simple::ObjectnessMeasureImageFilter::~ObjectnessMeasureImageFilter ( )

virtual

Destructor

◆ ObjectnessMeasureImageFilter()

itk::simple::ObjectnessMeasureImageFilter::ObjectnessMeasureImageFilter ( )

Default Constructor that takes no arguments and initializes default parameters

Member Function Documentation

◆ BrightObjectOff()

Self & itk::simple::ObjectnessMeasureImageFilter::BrightObjectOff ( )

inline

Definition at line 131 of file sitkObjectnessMeasureImageFilter.h.

References SetBrightObject().

◆ BrightObjectOn()

Self & itk::simple::ObjectnessMeasureImageFilter::BrightObjectOn ( )

inline

Set the value of BrightObject to true or false respectfully.

Definition at line 130 of file sitkObjectnessMeasureImageFilter.h.

References SetBrightObject().

◆ Execute()

Image itk::simple::ObjectnessMeasureImageFilter::Execute ( const Image & image1 )

Execute the filter on the input image

◆ ExecuteInternal()

template<class TImageType>

Image itk::simple::ObjectnessMeasureImageFilter::ExecuteInternal ( const Image & image1 )

private

Referenced by detail::MemberFunctionAddressor< MemberFunctionType >.

◆ GetAlpha()

double itk::simple::ObjectnessMeasureImageFilter::GetAlpha ( ) const

inline

Set/Get Alpha, the weight corresponding to R_A (the ratio of the smallest eigenvalue that has to be large to the larger ones). Smaller values lead to increased sensitivity to the object dimensionality.

Definition at line 78 of file sitkObjectnessMeasureImageFilter.h.

References m_Alpha.

◆ GetBeta()

double itk::simple::ObjectnessMeasureImageFilter::GetBeta ( ) const

inline

Set/Get Beta, the weight corresponding to R_B (the ratio of the largest eigenvalue that has to be small to the larger ones). Smaller values lead to increased sensitivity to the object dimensionality.

Definition at line 88 of file sitkObjectnessMeasureImageFilter.h.

References m_Beta.

◆ GetBrightObject()

bool itk::simple::ObjectnessMeasureImageFilter::GetBrightObject ( ) const

inline

Enhance bright structures on a dark background if true, the opposite if false.

Definition at line 136 of file sitkObjectnessMeasureImageFilter.h.

References m_BrightObject.

◆ GetGamma()

double itk::simple::ObjectnessMeasureImageFilter::GetGamma ( ) const

inline

Set/Get Gamma, the weight corresponding to S (the Frobenius norm of the Hessian matrix, or second-order structureness)

Definition at line 98 of file sitkObjectnessMeasureImageFilter.h.

References m_Gamma.

◆ GetName()

std::string itk::simple::ObjectnessMeasureImageFilter::GetName ( ) const

inlinevirtual

Name of this class

Implements itk::simple::ProcessObject.

Definition at line 139 of file sitkObjectnessMeasureImageFilter.h.

◆ GetObjectDimension()

unsigned int itk::simple::ObjectnessMeasureImageFilter::GetObjectDimension ( ) const

inline

Set/Get the dimensionality of the object (0: points (blobs), 1: lines (vessels), 2: planes (plate-like structures), 3: hyper-planes. ObjectDimension must be smaller than ImageDimension.

Definition at line 122 of file sitkObjectnessMeasureImageFilter.h.

References m_ObjectDimension.

◆ GetScaleObjectnessMeasure()

bool itk::simple::ObjectnessMeasureImageFilter::GetScaleObjectnessMeasure ( ) const

inline

Toggle scaling the objectness measure with the magnitude of the largest absolute eigenvalue

Definition at line 112 of file sitkObjectnessMeasureImageFilter.h.

References m_ScaleObjectnessMeasure.

◆ ScaleObjectnessMeasureOff()

Self & itk::simple::ObjectnessMeasureImageFilter::ScaleObjectnessMeasureOff ( )

inline

Definition at line 107 of file sitkObjectnessMeasureImageFilter.h.

References SetScaleObjectnessMeasure().

◆ ScaleObjectnessMeasureOn()

Self & itk::simple::ObjectnessMeasureImageFilter::ScaleObjectnessMeasureOn ( )

inline

Set the value of ScaleObjectnessMeasure to true or false respectfully.

Definition at line 106 of file sitkObjectnessMeasureImageFilter.h.

References SetScaleObjectnessMeasure().

◆ SetAlpha()

Self & itk::simple::ObjectnessMeasureImageFilter::SetAlpha ( double Alpha )

inline

Set/Get Alpha, the weight corresponding to R_A (the ratio of the smallest eigenvalue that has to be large to the larger ones). Smaller values lead to increased sensitivity to the object dimensionality.

Definition at line 73 of file sitkObjectnessMeasureImageFilter.h.

References m_Alpha.

◆ SetBeta()

Self & itk::simple::ObjectnessMeasureImageFilter::SetBeta ( double Beta )

inline

Set/Get Beta, the weight corresponding to R_B (the ratio of the largest eigenvalue that has to be small to the larger ones). Smaller values lead to increased sensitivity to the object dimensionality.

Definition at line 83 of file sitkObjectnessMeasureImageFilter.h.

References m_Beta.

◆ SetBrightObject()

Self & itk::simple::ObjectnessMeasureImageFilter::SetBrightObject ( bool BrightObject )

inline

Enhance bright structures on a dark background if true, the opposite if false.

Definition at line 127 of file sitkObjectnessMeasureImageFilter.h.

References m_BrightObject.

Referenced by BrightObjectOff(), and BrightObjectOn().

◆ SetGamma()

Self & itk::simple::ObjectnessMeasureImageFilter::SetGamma ( double Gamma )

inline

Set/Get Gamma, the weight corresponding to S (the Frobenius norm of the Hessian matrix, or second-order structureness)

Definition at line 93 of file sitkObjectnessMeasureImageFilter.h.

References m_Gamma.

◆ SetObjectDimension()

Self & itk::simple::ObjectnessMeasureImageFilter::SetObjectDimension ( unsigned int ObjectDimension )

inline

Set/Get the dimensionality of the object (0: points (blobs), 1: lines (vessels), 2: planes (plate-like structures), 3: hyper-planes. ObjectDimension must be smaller than ImageDimension.

Definition at line 117 of file sitkObjectnessMeasureImageFilter.h.

References m_ObjectDimension.