itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage > Class Template Reference

Segments structures in images based on intensity values. More...

#include <itkThresholdSegmentationLevelSetImageFilter.h>

Inheritance diagram for itk::ThresholdSegmentationLevelSetImageFilter:

[legend]Collaboration diagram for itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >:

[legend]List of all members.

Public Types
typedef ThresholdSegmentationLevelSetImageFilter	Self
typedef SegmentationLevelSetImageFilter< TInputImage, TOutputImage >	Superclass
typedef SmartPointer< Self >	Pointer
typedef SmartPointer< const Self >	ConstPointer
typedef Superclass::ValueType	ValueType
typedef ThresholdSegmentationLevelSetFunction< TOutputImage >	ThresholdFunctionType
Public Methods
virtual const char *	GetClassName () const
void	SetUpperThreshold (ValueType v)
void	SetLowerThreshold (ValueType v)
ValueType	GetUpperThreshold () const
ValueType	GetLowerThreshold () const
Static Public Methods
Pointer	New ()
Protected Methods
	~ThresholdSegmentationLevelSetImageFilter ()
	ThresholdSegmentationLevelSetImageFilter ()
virtual void	PrintSelf (std::ostream &os, Indent indent) const
	ThresholdSegmentationLevelSetImageFilter (const Self &)
void	operator= (const Self &)

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Detailed Description

template<class TInputImage, class TOutputImage>
class itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >

Segments structures in images based on intensity values.

IMPORTANT

The SegmentationLevelSetImageFilter class and the ThresholdSegmentationLevelSetFunction class contain additional information necessary to the full understanding of how to use this filter.

OVERVIEW

This class is a level set method segmentation filter. It constructs a speed function which is close to zero at the upper and lower bounds of an intensity window, effectively locking the propagating front onto those edges. Elsewhere, the front will propagate quickly.

INPUTS

This filter requires two inputs. The first input is a seed image. This seed image must contain an isosurface that you want to use as the seed for your segmentation. It can be a binary, graylevel, or floating point image. The only requirement is that it contain a closed isosurface that you will identify as the seed by setting the IsosurfaceValue parameter of the filter. For a binary image you will want to set your isosurface value halfway between your on and off values (i.e. for 0's and 1's, use an isosurface value of 0.5).

The second input is the feature image. This is the image from which the speed function will be calculated. For most applications, this is the image that you want to segment. The desired isosurface in your seed image should lie within the region of your feature image that you are trying to segment.Note that this filter does no preprocessing of the feature image before thresholding.

See SegmentationLevelSetImageFilter for more information on Inputs.

OUTPUTS

The filter outputs a single, scalar, real-valued image. Positive *values in the output image are inside the segmentated region and negative *values in the image are outside of the inside region. The zero crossings of *the image correspond to the position of the level set front.

See SparseFieldLevelSetImageFilter and SegmentationLevelSetImageFilter for more information.

PARAMETERS

In addition to parameters described in SegmentationLevelSetImageFilter, this filter adds the UpperThreshold and LowerThreshold. See ThresholdSegmentationLevelSetFunction for a description of how these values affect the segmentation.

See also:

SegmentationLevelSetImageFilter , ThresholdSegmentationLevelSetFunction, , SparseFieldLevelSetImageFilter

Definition at line 81 of file itkThresholdSegmentationLevelSetImageFilter.h.

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Member Typedef Documentation

template<class TInputImage, class TOutputImage> typedef SmartPointer<const Self> itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >::ConstPointer

Reimplemented from itk::SegmentationLevelSetImageFilter< TInputImage, TOutputImage >. Definition at line 89 of file itkThresholdSegmentationLevelSetImageFilter.h.

template<class TInputImage, class TOutputImage> typedef SmartPointer<Self> itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >::Pointer

Reimplemented from itk::SegmentationLevelSetImageFilter< TInputImage, TOutputImage >. Definition at line 88 of file itkThresholdSegmentationLevelSetImageFilter.h.

template<class TInputImage, class TOutputImage> typedef ThresholdSegmentationLevelSetImageFilter itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >::Self

Standard class typedefs Reimplemented from itk::SegmentationLevelSetImageFilter< TInputImage, TOutputImage >. Definition at line 86 of file itkThresholdSegmentationLevelSetImageFilter.h.

template<class TInputImage, class TOutputImage> typedef SegmentationLevelSetImageFilter<TInputImage, TOutputImage> itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >::Superclass

Reimplemented from itk::SegmentationLevelSetImageFilter< TInputImage, TOutputImage >. Definition at line 87 of file itkThresholdSegmentationLevelSetImageFilter.h.

template<class TInputImage, class TOutputImage> typedef ThresholdSegmentationLevelSetFunction<TOutputImage> itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >::ThresholdFunctionType

Type of the segmentation function Definition at line 95 of file itkThresholdSegmentationLevelSetImageFilter.h.

template<class TInputImage, class TOutputImage> typedef Superclass::ValueType itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >::ValueType

Inherited typedef from the superclass. Reimplemented from itk::SegmentationLevelSetImageFilter< TInputImage, TOutputImage >. Definition at line 92 of file itkThresholdSegmentationLevelSetImageFilter.h.

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Constructor & Destructor Documentation

template<class TInputImage, class TOutputImage> itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >::~ThresholdSegmentationLevelSetImageFilter (    )  [inline, protected]

Definition at line 125 of file itkThresholdSegmentationLevelSetImageFilter.h. References HardConnectedComponentImageFilter::PrintSelf().

template<class TInputImage, class TOutputImage> itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >::ThresholdSegmentationLevelSetImageFilter (    )  [protected]

template<class TInputImage, class TOutputImage> itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >::ThresholdSegmentationLevelSetImageFilter (  const Self &    )  [protected]

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Member Function Documentation

template<class TInputImage, class TOutputImage> virtual const char* itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >::GetClassName (    )  const [virtual]

Run-time type information (and related methods). Reimplemented from itk::SegmentationLevelSetImageFilter< TInputImage, TOutputImage >.

template<class TInputImage, class TOutputImage> ValueType itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >::GetLowerThreshold (    )  const [inline]

Get/Set the threshold values that will be used to calculate the speed function. Definition at line 118 of file itkThresholdSegmentationLevelSetImageFilter.h.

template<class TInputImage, class TOutputImage> ValueType itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >::GetUpperThreshold (    )  const [inline]

Get/Set the threshold values that will be used to calculate the speed function. Definition at line 114 of file itkThresholdSegmentationLevelSetImageFilter.h.

template<class TInputImage, class TOutputImage> Pointer itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >::New (    )  [static]

Method for creation through the object factory Reimplemented from itk::SparseFieldLevelSetImageFilter< TInputImage, TOutputImage >.

template<class TInputImage, class TOutputImage> void itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >::operator= (  const Self &    )  [protected]

Reimplemented from itk::SparseFieldLevelSetImageFilter< TInputImage, TOutputImage >.

template<class TInputImage, class TOutputImage> virtual void itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >::PrintSelf (  std::ostream &    os, Indent    indent )  const [protected, virtual]

Methods invoked by Print() to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes. Reimplemented from itk::SegmentationLevelSetImageFilter< TInputImage, TOutputImage >.

template<class TInputImage, class TOutputImage> void itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >::SetLowerThreshold (  ValueType    v )  [inline]

Get/Set the threshold values that will be used to calculate the speed function. Definition at line 109 of file itkThresholdSegmentationLevelSetImageFilter.h.

template<class TInputImage, class TOutputImage> void itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TOutputImage >::SetUpperThreshold (  ValueType    v )  [inline]

Get/Set the threshold values that will be used to calculate the speed function. Definition at line 104 of file itkThresholdSegmentationLevelSetImageFilter.h.

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

• itkThresholdSegmentationLevelSetImageFilter.h

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