SimpleITK  2.1.0.dev86
Public Types | Public Member Functions | Private Types | Private Member Functions | Private Attributes | Friends | List of all members
itk::simple::AntiAliasBinaryImageFilter Class Reference

A method for estimation of a surface from a binary volume. More...

#include <sitkAntiAliasBinaryImageFilter.h>

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

Public Types

using PixelIDTypeList = IntegerPixelIDTypeList
using Self = AntiAliasBinaryImageFilter
- Public Types inherited from itk::simple::ImageFilter
using Self = ImageFilter
- Public Types inherited from itk::simple::ProcessObject
using Self = ProcessObject

Public Member Functions

 AntiAliasBinaryImageFilter ()
Image Execute (const Image &image1)
Image Execute (Image &&image1)
uint32_t GetElapsedIterations () const
 Number of iterations run. More...
double GetMaximumRMSError () const
std::string GetName () const
uint32_t GetNumberOfIterations () const
double GetRMSChange () const
 The Root Mean Square of the levelset upon termination. More...
SelfSetMaximumRMSError (double MaximumRMSError)
SelfSetNumberOfIterations (uint32_t NumberOfIterations)
std::string ToString () const
virtual ~AntiAliasBinaryImageFilter ()
- 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

uint32_t m_ElapsedIterations {0}
bool m_InPlace {false}
double m_MaximumRMSError {0.07}
std::unique_ptr< detail::MemberFunctionFactory< MemberFunctionType > > m_MemberFactory
uint32_t m_NumberOfIterations {1000u}
double m_RMSChange {0.0}


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<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)

Detailed Description

A method for estimation of a surface from a binary volume.

This filter implements a surface-fitting method for estimation of a surface from a binary volume. This process can be used to reduce aliasing artifacts which result in visualization of binary partitioned surfaces.
The binary volume (filter input) is used as a set of constraints in an iterative relaxation process of an estimated ND surface. The surface is described implicitly as the zero level set of a volume \( \phi \) and allowed to deform under curvature flow. A set of constraints is imposed on this movement as follows:

\[ u_{i,j,k}^{n+1} = \left\{ \begin{array}{ll} \mbox{max} (u_{i,j,k}^{n} + \Delta t H_{i,j,k}^{n}, 0) & \mbox{\f$B_{i,j,k} = 1\f$} \\ \mbox{min} (u_{i,j,k}^{n} + \Delta t H_{i,j,k}^{n}, 0) & \mbox{\f$B_{i,j,k} = -1\f$} \end{array}\right. \]

where \( u_{i,j,k}^{n} \) is the value of \( \phi \) at discrete index \( (i,j,k) \) and iteration \( n \) , \( H \) is the gradient magnitude times mean curvature of \( \phi \) , and \( B \) is the binary input volume, with 1 denoting an inside pixel and -1 denoting an outside pixel.
This implementation uses a sparse field level set solver instead of the narrow band implementation described in the reference below, which may introduce some differences in how fast and how accurately (in terms of RMS error) the solution converges.
Whitaker, Ross. "Reducing Aliasing Artifacts In Iso-Surfaces of Binary Volumes" IEEE Volume Visualization and Graphics Symposium, October 2000, pp.23-32.
The MaximumRMSChange parameter is used to determine when the solution has converged. A lower value will result in a tighter-fitting solution, but will require more computations. Too low a value could put the solver into an infinite loop. Values should always be less than 1.0. A value of 0.07 is a good starting estimate.
The MaximumIterations parameter can be used to halt the solution after a specified number of iterations.
The input is an N-dimensional image of any type. It is assumed to be a binary image. The filter will use an isosurface value that is halfway between the min and max values in the image. A signed data type is not necessary for the input.
The filter will output a level set image of real, signed values. The zero crossings of this (N-dimensional) image represent the position of the isosurface value of interest. Values outside the zero level set are negative and values inside the zero level set are positive values.
The output image type you use to instantiate this filter should be a real valued scalar type. In other words: doubles or floats.
The filter is relatively straightforward to use. Tests and examples exist to illustrate. The important thing is to understand the input and output types so you can properly interpret your results.
In the common case, the only parameter that will need to be set is the MaximumRMSChange parameter, which determines when the solver halts.
See also
itk::simple::AntiAliasBinary for the procedural interface
itk::AntiAliasBinaryImageFilter for the Doxygen on the original ITK class.

Definition at line 92 of file sitkAntiAliasBinaryImageFilter.h.

Member Typedef Documentation

◆ MemberFunctionType

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

Setup for member function dispatching

Definition at line 156 of file sitkAntiAliasBinaryImageFilter.h.

◆ PixelIDTypeList

Define the pixels types supported by this filter

Definition at line 104 of file sitkAntiAliasBinaryImageFilter.h.

◆ Self

Definition at line 94 of file sitkAntiAliasBinaryImageFilter.h.

Constructor & Destructor Documentation

◆ ~AntiAliasBinaryImageFilter()

virtual itk::simple::AntiAliasBinaryImageFilter::~AntiAliasBinaryImageFilter ( )


◆ AntiAliasBinaryImageFilter()

itk::simple::AntiAliasBinaryImageFilter::AntiAliasBinaryImageFilter ( )

Default Constructor that takes no arguments and initializes default parameters

Member Function Documentation

◆ Execute() [1/2]

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

◆ Execute() [2/2]

Image itk::simple::AntiAliasBinaryImageFilter::Execute ( Image &&  image1)

Execute the filter on the input image

◆ ExecuteInternal()

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

◆ GetElapsedIterations()

uint32_t itk::simple::AntiAliasBinaryImageFilter::GetElapsedIterations ( ) const

Number of iterations run.

This is a measurement. Its value is updated in the Execute methods, so the value will only be valid after an execution.

Definition at line 128 of file sitkAntiAliasBinaryImageFilter.h.

◆ GetMaximumRMSError()

double itk::simple::AntiAliasBinaryImageFilter::GetMaximumRMSError ( ) const

Definition at line 113 of file sitkAntiAliasBinaryImageFilter.h.

◆ GetName()

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

Name of this class

Implements itk::simple::ProcessObject.

Definition at line 140 of file sitkAntiAliasBinaryImageFilter.h.

◆ GetNumberOfIterations()

uint32_t itk::simple::AntiAliasBinaryImageFilter::GetNumberOfIterations ( ) const

Definition at line 121 of file sitkAntiAliasBinaryImageFilter.h.

◆ GetRMSChange()

double itk::simple::AntiAliasBinaryImageFilter::GetRMSChange ( ) const

The Root Mean Square of the levelset upon termination.

This is a measurement. Its value is updated in the Execute methods, so the value will only be valid after an execution.

Definition at line 136 of file sitkAntiAliasBinaryImageFilter.h.

◆ SetMaximumRMSError()

Self& itk::simple::AntiAliasBinaryImageFilter::SetMaximumRMSError ( double  MaximumRMSError)

Definition at line 109 of file sitkAntiAliasBinaryImageFilter.h.

◆ SetNumberOfIterations()

Self& itk::simple::AntiAliasBinaryImageFilter::SetNumberOfIterations ( uint32_t  NumberOfIterations)

Definition at line 117 of file sitkAntiAliasBinaryImageFilter.h.

◆ ToString()

std::string itk::simple::AntiAliasBinaryImageFilter::ToString ( ) const

Print ourselves out

Reimplemented from itk::simple::ProcessObject.

Friends And Related Function Documentation

◆ detail::MemberFunctionAddressor< MemberFunctionType >

Definition at line 160 of file sitkAntiAliasBinaryImageFilter.h.

Member Data Documentation

◆ m_ElapsedIterations

uint32_t itk::simple::AntiAliasBinaryImageFilter::m_ElapsedIterations {0}

Definition at line 172 of file sitkAntiAliasBinaryImageFilter.h.

◆ m_InPlace

bool itk::simple::AntiAliasBinaryImageFilter::m_InPlace {false}

Definition at line 177 of file sitkAntiAliasBinaryImageFilter.h.

◆ m_MaximumRMSError

double itk::simple::AntiAliasBinaryImageFilter::m_MaximumRMSError {0.07}

Definition at line 166 of file sitkAntiAliasBinaryImageFilter.h.

◆ m_MemberFactory

std::unique_ptr<detail::MemberFunctionFactory<MemberFunctionType> > itk::simple::AntiAliasBinaryImageFilter::m_MemberFactory

Definition at line 162 of file sitkAntiAliasBinaryImageFilter.h.

◆ m_NumberOfIterations

uint32_t itk::simple::AntiAliasBinaryImageFilter::m_NumberOfIterations {1000u}

Definition at line 169 of file sitkAntiAliasBinaryImageFilter.h.

◆ m_RMSChange

double itk::simple::AntiAliasBinaryImageFilter::m_RMSChange {0.0}

Definition at line 174 of file sitkAntiAliasBinaryImageFilter.h.

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