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itk::simple::CollidingFrontsImageFilter Class Reference

Selects a region of space where two independent fronts run towards each other. More...

#include <sitkCollidingFrontsImageFilter.h>

+ Inheritance diagram for itk::simple::CollidingFrontsImageFilter:
+ Collaboration diagram for itk::simple::CollidingFrontsImageFilter:

Detailed Description

Selects a region of space where two independent fronts run towards each other.

The filter can be used to quickly segment anatomical structures (e.g. for level set initialization).

The filter uses two instances of FastMarchingUpwindGradientImageFilter to compute the gradients of arrival times of two wavefronts propagating from two sets of seeds. The input of the filter is used as the speed of the two wavefronts. The output is the dot product between the two gradient vector fields.

The filter works on the following basic idea. In the regions where the dot product between the two gradient fields is negative, the two fronts propagate in opposite directions. In the regions where the dot product is positive, the two fronts propagate in the same direction. This can be used to extract the region of space between two sets of points.

If StopOnTargets is On, then each front will stop as soon as all seeds of the other front have been reached. This can markedly speed up the execution of the filter, since wave propagation does not take place on the complete image.

Optionally, a connectivity criterion can be applied to the resulting dot product image. In this case, the only negative region in the output image is the one connected to the seeds.

Author
Luca Antiga Ph.D. Biomedical Technologies Laboratory, Bioengineering Department, Mario Negri Institute, Italy.
See also
itk::simple::CollidingFronts for the procedural interface
itk::CollidingFrontsImageFilter for the Doxygen on the original ITK class.

Definition at line 51 of file sitkCollidingFrontsImageFilter.h.

Public Types

using PixelIDTypeList = BasicPixelIDTypeList
 
using Self = CollidingFrontsImageFilter
 
- Public Types inherited from itk::simple::ImageFilter
using Self = ImageFilter
 
- Public Types inherited from itk::simple::ProcessObject
using Self = ProcessObject
 

Public Member Functions

SelfAddSeedPoint1 (std::vector< unsigned int > point)
 Add SeedPoints1 point. More...
 
SelfAddSeedPoint2 (std::vector< unsigned int > point)
 Add SeedPoints2 point. More...
 
SelfApplyConnectivityOff ()
 
SelfApplyConnectivityOn ()
 
SelfClearSeedPoints1 ()
 Remove all SeedPoints1 points. More...
 
SelfClearSeedPoints2 ()
 Remove all SeedPoints2 points. More...
 
 CollidingFrontsImageFilter ()
 
Image Execute (const Image &image1)
 
bool GetApplyConnectivity () const
 
std::string GetName () const
 
double GetNegativeEpsilon () const
 
std::vector< std::vector< unsigned int > > GetSeedPoints1 () const
 
std::vector< std::vector< unsigned int > > GetSeedPoints2 () const
 
bool GetStopOnTargets () const
 
SelfSetApplyConnectivity (bool ApplyConnectivity)
 
SelfSetNegativeEpsilon (double NegativeEpsilon)
 
SelfSetSeedPoints1 (std::vector< std::vector< unsigned int > > SeedPoints1)
 
SelfSetSeedPoints2 (std::vector< std::vector< unsigned int > > SeedPoints2)
 
SelfSetStopOnTargets (bool StopOnTargets)
 
SelfStopOnTargetsOff ()
 
SelfStopOnTargetsOn ()
 
std::string ToString () const
 
virtual ~CollidingFrontsImageFilter ()
 
- 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. More...
 
virtual int AddCommand (itk::simple::EventEnum event, itk::simple::Command &cmd)
 Add a Command Object to observer the event. More...
 
virtual float GetProgress () const
 An Active Measurement of the progress of execution. More...
 
virtual bool HasCommand (itk::simple::EventEnum event) const
 Query of this object has any registered commands for event. More...
 
 ProcessObject ()
 
virtual void RemoveAllCommands ()
 Remove all registered commands. More...
 
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

bool m_ApplyConnectivity {true}
 
std::unique_ptr< detail::MemberFunctionFactory< MemberFunctionType > > m_MemberFactory
 
double m_NegativeEpsilon {-1e-6}
 
std::vector< std::vector< unsigned int > > m_SeedPoints1 {std::vector< std::vector<unsigned int > >()}
 
std::vector< std::vector< unsigned int > > m_SeedPoints2 {std::vector< std::vector<unsigned int > >()}
 
bool m_StopOnTargets {false}
 

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. More...
 
static void SetGlobalDefaultCoordinateTolerance (double)
 Access the global tolerance to determine congruent spaces. More...
 
static double GetGlobalDefaultDirectionTolerance ()
 Access the global tolerance to determine congruent spaces. More...
 
static void SetGlobalDefaultDirectionTolerance (double)
 Access the global tolerance to determine congruent spaces. More...
 
static bool SetGlobalDefaultThreader (const std::string &threader)
 Set/Get the default threader used for process objects. More...
 
static std::string GetGlobalDefaultThreader ()
 Set/Get the default threader used for process objects. More...
 
static void SetGlobalDefaultNumberOfThreads (unsigned int n)
 
static unsigned int GetGlobalDefaultNumberOfThreads ()
 Set/Get the default threader used for process objects. More...
 
- 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::ProcessObjectGetActiveProcess ()
 
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
 
NonCopyableoperator= (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::EventObjectGetITKEventObject (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::CollidingFrontsImageFilter::MemberFunctionType = Image (Self::*)( const Image& image1 )
private

Setup for member function dispatching

Definition at line 143 of file sitkCollidingFrontsImageFilter.h.

◆ PixelIDTypeList

Define the pixels types supported by this filter

Definition at line 63 of file sitkCollidingFrontsImageFilter.h.

◆ Self

Definition at line 53 of file sitkCollidingFrontsImageFilter.h.

Constructor & Destructor Documentation

◆ ~CollidingFrontsImageFilter()

virtual itk::simple::CollidingFrontsImageFilter::~CollidingFrontsImageFilter ( )
virtual

Destructor

◆ CollidingFrontsImageFilter()

itk::simple::CollidingFrontsImageFilter::CollidingFrontsImageFilter ( )

Default Constructor that takes no arguments and initializes default parameters

Member Function Documentation

◆ AddSeedPoint1()

Self& itk::simple::CollidingFrontsImageFilter::AddSeedPoint1 ( std::vector< unsigned int >  point)
inline

Add SeedPoints1 point.

Definition at line 76 of file sitkCollidingFrontsImageFilter.h.

References itk::point().

◆ AddSeedPoint2()

Self& itk::simple::CollidingFrontsImageFilter::AddSeedPoint2 ( std::vector< unsigned int >  point)
inline

Add SeedPoints2 point.

Definition at line 91 of file sitkCollidingFrontsImageFilter.h.

References itk::point().

◆ ApplyConnectivityOff()

Self& itk::simple::CollidingFrontsImageFilter::ApplyConnectivityOff ( )
inline

Definition at line 102 of file sitkCollidingFrontsImageFilter.h.

◆ ApplyConnectivityOn()

Self& itk::simple::CollidingFrontsImageFilter::ApplyConnectivityOn ( )
inline

Set the value of ApplyConnectivity to true or false respectfully.

Definition at line 101 of file sitkCollidingFrontsImageFilter.h.

◆ ClearSeedPoints1()

Self& itk::simple::CollidingFrontsImageFilter::ClearSeedPoints1 ( )
inline

Remove all SeedPoints1 points.

Definition at line 78 of file sitkCollidingFrontsImageFilter.h.

◆ ClearSeedPoints2()

Self& itk::simple::CollidingFrontsImageFilter::ClearSeedPoints2 ( )
inline

Remove all SeedPoints2 points.

Definition at line 93 of file sitkCollidingFrontsImageFilter.h.

◆ Execute()

Image itk::simple::CollidingFrontsImageFilter::Execute ( const Image image1)

Execute the filter on the input image

◆ ExecuteInternal()

template<class TImageType >
Image itk::simple::CollidingFrontsImageFilter::ExecuteInternal ( const Image image1)
private

◆ GetApplyConnectivity()

bool itk::simple::CollidingFrontsImageFilter::GetApplyConnectivity ( ) const
inline

Definition at line 106 of file sitkCollidingFrontsImageFilter.h.

◆ GetName()

std::string itk::simple::CollidingFrontsImageFilter::GetName ( ) const
inlinevirtual

Name of this class

Implements itk::simple::ProcessObject.

Definition at line 129 of file sitkCollidingFrontsImageFilter.h.

◆ GetNegativeEpsilon()

double itk::simple::CollidingFrontsImageFilter::GetNegativeEpsilon ( ) const
inline

Definition at line 114 of file sitkCollidingFrontsImageFilter.h.

◆ GetSeedPoints1()

std::vector< std::vector< unsigned int > > itk::simple::CollidingFrontsImageFilter::GetSeedPoints1 ( ) const
inline

Get the container of Seed Points representing the first initial front.

Definition at line 74 of file sitkCollidingFrontsImageFilter.h.

◆ GetSeedPoints2()

std::vector< std::vector< unsigned int > > itk::simple::CollidingFrontsImageFilter::GetSeedPoints2 ( ) const
inline

Get the container of Seed Points representing the second initial front.

Definition at line 89 of file sitkCollidingFrontsImageFilter.h.

◆ GetStopOnTargets()

bool itk::simple::CollidingFrontsImageFilter::GetStopOnTargets ( ) const
inline

Definition at line 126 of file sitkCollidingFrontsImageFilter.h.

◆ SetApplyConnectivity()

Self& itk::simple::CollidingFrontsImageFilter::SetApplyConnectivity ( bool  ApplyConnectivity)
inline

Definition at line 98 of file sitkCollidingFrontsImageFilter.h.

◆ SetNegativeEpsilon()

Self& itk::simple::CollidingFrontsImageFilter::SetNegativeEpsilon ( double  NegativeEpsilon)
inline

Definition at line 110 of file sitkCollidingFrontsImageFilter.h.

◆ SetSeedPoints1()

Self& itk::simple::CollidingFrontsImageFilter::SetSeedPoints1 ( std::vector< std::vector< unsigned int > >  SeedPoints1)
inline

Set the container of Seed Points representing the first initial front. Seed points are represented as a VectorContainer of LevelSetNodes.

Definition at line 69 of file sitkCollidingFrontsImageFilter.h.

◆ SetSeedPoints2()

Self& itk::simple::CollidingFrontsImageFilter::SetSeedPoints2 ( std::vector< std::vector< unsigned int > >  SeedPoints2)
inline

Set the container of Seed Points representing the second initial front. Seed points are represented as a VectorContainer of LevelSetNodes.

Definition at line 84 of file sitkCollidingFrontsImageFilter.h.

◆ SetStopOnTargets()

Self& itk::simple::CollidingFrontsImageFilter::SetStopOnTargets ( bool  StopOnTargets)
inline

Definition at line 118 of file sitkCollidingFrontsImageFilter.h.

◆ StopOnTargetsOff()

Self& itk::simple::CollidingFrontsImageFilter::StopOnTargetsOff ( )
inline

Definition at line 122 of file sitkCollidingFrontsImageFilter.h.

◆ StopOnTargetsOn()

Self& itk::simple::CollidingFrontsImageFilter::StopOnTargetsOn ( )
inline

Set the value of StopOnTargets to true or false respectfully.

Definition at line 121 of file sitkCollidingFrontsImageFilter.h.

◆ ToString()

std::string itk::simple::CollidingFrontsImageFilter::ToString ( ) const
virtual

Print ourselves out

Reimplemented from itk::simple::ProcessObject.

Friends And Related Function Documentation

◆ detail::MemberFunctionAddressor< MemberFunctionType >

Definition at line 147 of file sitkCollidingFrontsImageFilter.h.

Member Data Documentation

◆ m_ApplyConnectivity

bool itk::simple::CollidingFrontsImageFilter::m_ApplyConnectivity {true}
private

Definition at line 156 of file sitkCollidingFrontsImageFilter.h.

◆ m_MemberFactory

std::unique_ptr<detail::MemberFunctionFactory<MemberFunctionType> > itk::simple::CollidingFrontsImageFilter::m_MemberFactory
private

Definition at line 149 of file sitkCollidingFrontsImageFilter.h.

◆ m_NegativeEpsilon

double itk::simple::CollidingFrontsImageFilter::m_NegativeEpsilon {-1e-6}
private

Definition at line 158 of file sitkCollidingFrontsImageFilter.h.

◆ m_SeedPoints1

std::vector< std::vector<unsigned int> > itk::simple::CollidingFrontsImageFilter::m_SeedPoints1 {std::vector< std::vector<unsigned int > >()}
private

Definition at line 152 of file sitkCollidingFrontsImageFilter.h.

◆ m_SeedPoints2

std::vector< std::vector<unsigned int> > itk::simple::CollidingFrontsImageFilter::m_SeedPoints2 {std::vector< std::vector<unsigned int > >()}
private

Definition at line 154 of file sitkCollidingFrontsImageFilter.h.

◆ m_StopOnTargets

bool itk::simple::CollidingFrontsImageFilter::m_StopOnTargets {false}
private

Definition at line 160 of file sitkCollidingFrontsImageFilter.h.


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