SimpleITK  1.3.0.dev466
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itk::simple::BinaryMinMaxCurvatureFlowImageFilter Class Reference

Denoise a binary image using min/max curvature flow. More...

#include <sitkBinaryMinMaxCurvatureFlowImageFilter.h>

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

Public Types

typedef RealPixelIDTypeList PixelIDTypeList
 
typedef BinaryMinMaxCurvatureFlowImageFilter Self
 
- Public Types inherited from itk::simple::ImageFilter< 1 >
typedef ImageFilter Self
 
- Public Types inherited from itk::simple::ProcessObject
typedef ProcessObject Self
 

Public Member Functions

 BinaryMinMaxCurvatureFlowImageFilter ()
 
Image Execute (const Image &image1)
 
Image Execute (const Image &image1, double timeStep, uint32_t numberOfIterations, int stencilRadius, double threshold)
 
std::string GetName () const
 
uint32_t GetNumberOfIterations () const
 
int GetStencilRadius () const
 
double GetThreshold () const
 
double GetTimeStep () const
 
SelfSetNumberOfIterations (uint32_t NumberOfIterations)
 
SelfSetStencilRadius (int StencilRadius)
 
SelfSetThreshold (double Threshold)
 
SelfSetTimeStep (double TimeStep)
 
std::string ToString () const
 
virtual ~BinaryMinMaxCurvatureFlowImageFilter ()
 
- Public Member Functions inherited from itk::simple::ImageFilter< 1 >
 ImageFilter ()
 
virtual ~ImageFilter ()=0
 
- Public Member Functions inherited from itk::simple::ProcessObject
virtual void Abort ()
 
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
 

Private Types

typedef Image(Self::* MemberFunctionType) (const Image &image1)
 

Private Member Functions

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

Private Attributes

nsstd::auto_ptr< detail::MemberFunctionFactory< MemberFunctionType > > m_MemberFactory
 
uint32_t m_NumberOfIterations
 
int m_StencilRadius
 
double m_Threshold
 
double m_TimeStep
 

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 void SetGlobalDefaultNumberOfThreads (unsigned int n)
 
static unsigned int GetGlobalDefaultNumberOfThreads ()
 
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...
 
- 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) SITK_NOEXCEPT
 
virtual void PreUpdate (itk::ProcessObject *p)
 
virtual void RemoveITKObserver (EventCommand &e)
 
- Protected Member Functions inherited from itk::simple::NonCopyable
 NonCopyable ()
 
- Static Protected Member Functions inherited from itk::simple::ImageFilter< 1 >
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 TImageType >
static Image CastITKToImage (TImageType *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)
 
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

Denoise a binary image using min/max curvature flow.

BinaryMinMaxCurvatureFlowImageFilter implements a curvature driven image denosing algorithm. This filter assumes that the image is essentially binary: consisting of two classes. Iso-brightness contours in the input image are viewed as a level set. The level set is then evolved using a curvature-based speed function:

\[ I_t = F_{\mbox{minmax}} |\nabla I| \]

where $ F_{\mbox{minmax}} = \min(\kappa,0) $ if $ \mbox{Avg}_{\mbox{stencil}}(x) $ is less than or equal to $ T_{thresold} $ and $ \max(\kappa,0) $ , otherwise. $ \kappa $ is the mean curvature of the iso-brightness contour at point $ x $ .

In min/max curvature flow, movement is turned on or off depending on the scale of the noise one wants to remove. Switching depends on the average image value of a region of radius $ R $ around each point. The choice of $ R $ , the stencil radius, governs the scale of the noise to be removed.

The threshold value $ T_{threshold} $ is a user specified value which discriminates between the two pixel classes.

This filter make use of the multi-threaded finite difference solver hierarchy. Updates are computed using a BinaryMinMaxCurvatureFlowFunction object. A zero flux Neumann boundary condition is used when computing derivatives near the data boundary.

Warning
This filter assumes that the input and output types have the same dimensions. This filter also requires that the output image pixels are of a real type. This filter works for any dimensional images.

Reference: "Level Set Methods and Fast Marching Methods", J.A. Sethian, Cambridge Press, Chapter 16, Second edition, 1999.

See also
BinaryMinMaxCurvatureFlowFunction
CurvatureFlowImageFilter
MinMaxCurvatureFlowImageFilter
itk::simple::BinaryMinMaxCurvatureFlow for the procedural interface
itk::BinaryMinMaxCurvatureFlowImageFilter for the Doxygen on the original ITK class.

Definition at line 62 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.

Member Typedef Documentation

typedef Image(Self::* itk::simple::BinaryMinMaxCurvatureFlowImageFilter::MemberFunctionType) (const Image &image1)
private

Setup for member function dispatching

Definition at line 129 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.

Define the pixels types supported by this filter

Definition at line 74 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.

Definition at line 64 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.

Constructor & Destructor Documentation

virtual itk::simple::BinaryMinMaxCurvatureFlowImageFilter::~BinaryMinMaxCurvatureFlowImageFilter ( )
virtual

Destructor

itk::simple::BinaryMinMaxCurvatureFlowImageFilter::BinaryMinMaxCurvatureFlowImageFilter ( )

Default Constructor that takes no arguments and initializes default parameters

Member Function Documentation

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

Execute the filter on the input image

Image itk::simple::BinaryMinMaxCurvatureFlowImageFilter::Execute ( const Image image1,
double  timeStep,
uint32_t  numberOfIterations,
int  stencilRadius,
double  threshold 
)

Execute the filter on the input image with the given parameters

template<class TImageType >
Image itk::simple::BinaryMinMaxCurvatureFlowImageFilter::ExecuteInternal ( const Image image1)
private
std::string itk::simple::BinaryMinMaxCurvatureFlowImageFilter::GetName ( ) const
inlinevirtual

Name of this class

Implements itk::simple::ProcessObject.

Definition at line 112 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.

uint32_t itk::simple::BinaryMinMaxCurvatureFlowImageFilter::GetNumberOfIterations ( ) const
inline

Definition at line 92 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.

int itk::simple::BinaryMinMaxCurvatureFlowImageFilter::GetStencilRadius ( ) const
inline

Definition at line 100 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.

double itk::simple::BinaryMinMaxCurvatureFlowImageFilter::GetThreshold ( ) const
inline

Set/Get the threshold value.

Definition at line 110 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.

double itk::simple::BinaryMinMaxCurvatureFlowImageFilter::GetTimeStep ( ) const
inline

Definition at line 84 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.

Self& itk::simple::BinaryMinMaxCurvatureFlowImageFilter::SetNumberOfIterations ( uint32_t  NumberOfIterations)
inline

Definition at line 88 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.

Self& itk::simple::BinaryMinMaxCurvatureFlowImageFilter::SetStencilRadius ( int  StencilRadius)
inline

Definition at line 96 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.

Self& itk::simple::BinaryMinMaxCurvatureFlowImageFilter::SetThreshold ( double  Threshold)
inline

Set/Get the threshold value.

Definition at line 105 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.

References itk::simple::Threshold().

Self& itk::simple::BinaryMinMaxCurvatureFlowImageFilter::SetTimeStep ( double  TimeStep)
inline

Definition at line 80 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.

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

Print ourselves out

Reimplemented from itk::simple::ProcessObject.

Friends And Related Function Documentation

Definition at line 133 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.

Member Data Documentation

nsstd::auto_ptr<detail::MemberFunctionFactory<MemberFunctionType> > itk::simple::BinaryMinMaxCurvatureFlowImageFilter::m_MemberFactory
private

Definition at line 135 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.

uint32_t itk::simple::BinaryMinMaxCurvatureFlowImageFilter::m_NumberOfIterations
private

Definition at line 141 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.

int itk::simple::BinaryMinMaxCurvatureFlowImageFilter::m_StencilRadius
private

Definition at line 142 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.

double itk::simple::BinaryMinMaxCurvatureFlowImageFilter::m_Threshold
private

Definition at line 143 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.

double itk::simple::BinaryMinMaxCurvatureFlowImageFilter::m_TimeStep
private

Definition at line 139 of file sitkBinaryMinMaxCurvatureFlowImageFilter.h.


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