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itkReinitializeLevelSetImageFilter.h
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itkReinitializeLevelSetImageFilter.h
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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkReinitializeLevelSetImageFilter.h
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef _itkReinitializeLevelSetImageFilter_h
#define _itkReinitializeLevelSetImageFilter_h
#include "itkImageToImageFilter.h"
#include "itkLevelSet.h"
#include "itkLevelSetNeighborhoodExtractor.h"
#include "itkFastMarchingImageFilter.h"
namespace itk
{
/** \class ReinitializeLevelSetImageFilter
* \brief Reinitialize the level set to the signed distance function.
*
* ReinitializeLevelSetImageFilter reinitializes the input level set to
* the approximated signed distance function from a particular
* level set. The output is a level set of the same type as the input.
*
* For some level set algorithms, it is useful to periodically
* reinitialize the level set function to prevent numerical accuracy
* problems in computing derivatives and curvature values where level
* sets are densely bunched together.
*
* This class is templated over the image type which represents
* the level set.
*
* This class supports narrowbanding. If the input narrowband is provided,
* the algorithm will only locate the level set within the input narrowband.
* For the output, the reinitialize level set is only valid for a distance
* of OutputNarrowBandwidth / 2 of either side of the level set of interest.
*
* Implementation of this class is based on Chapter 11 of
* "Level Set Methods and Fast Marching Methods", J.A. Sethian,
* Cambridge Press, Second edition, 1999.
*
* \ingroup LevelSetSegmentation
*
*/
template <class TLevelSet>
class ITK_EXPORT ReinitializeLevelSetImageFilter :
public ImageToImageFilter<TLevelSet,TLevelSet>
{
public:
/** Standard class typedefs. */
typedef ReinitializeLevelSetImageFilter Self;
typedef ImageToImageFilter<TLevelSet,TLevelSet> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(ReinitializeLevelSetImageFilter, ImageToImageFilter);
/** LevelSetType typedef support. */
typedef LevelSetTypeDefault<TLevelSet> LevelSetType;
typedef typename LevelSetType::LevelSetImageType LevelSetImageType;
typedef typename LevelSetType::LevelSetPointer LevelSetPointer;
typedef typename LevelSetType::LevelSetConstPointer LevelSetConstPointer;
typedef typename LevelSetType::PixelType PixelType;
typedef typename LevelSetType::NodeType NodeType;
typedef typename LevelSetType::NodeContainer NodeContainer;
typedef typename LevelSetType::NodeContainerPointer NodeContainerPointer;
/** SetDimension enumeration. */
itkStaticConstMacro(SetDimension, unsigned int,
LevelSetType::SetDimension);
/** Set/Get the value of the level set to be located. The default value is
* 0. */
itkSetMacro( LevelSetValue, double );
itkGetMacro( LevelSetValue, double );
/** Set/Get the narrowbanding flag. By default, narrowbanding is switched
* off. */
itkSetMacro( NarrowBanding, bool );
itkGetMacro( NarrowBanding, bool );
itkBooleanMacro( NarrowBanding );
/** Set/Get the input narrow bandwidth. The default value is 12. */
itkSetClampMacro( InputNarrowBandwidth, double, 0.0,
NumericTraits<double>::max());
itkGetMacro( InputNarrowBandwidth, double );
/** Set/Get the output narrow bandwidth. The default value is 12. */
itkSetClampMacro( OutputNarrowBandwidth, double, 0.0,
NumericTraits<double>::max());
itkGetMacro( OutputNarrowBandwidth, double );
/** Set the bandwidth for both the input and output narrowband,
* By default, both the input and output are set to 12. */
void SetNarrowBandwidth( double value )
{
this->SetInputNarrowBandwidth(value);
this->SetOutputNarrowBandwidth(value);
}
/** Set/Get the input narrowband. */
void SetInputNarrowBand( NodeContainer * ptr );
NodeContainerPointer GetInputNarrowBand() const
{ return m_InputNarrowBand; }
/** Get the output narrowband. */
NodeContainerPointer GetOutputNarrowBand() const
{ return m_OutputNarrowBand; }
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro(LevelSetDoubleAdditiveOperatorsCheck,
(Concept::AdditiveOperators<PixelType, double>));
itkConceptMacro(LevelSetOStreamWritableCheck,
(Concept::OStreamWritable<PixelType>));
/** End concept checking */
#endif
protected:
ReinitializeLevelSetImageFilter();
~ReinitializeLevelSetImageFilter(){};
void PrintSelf(std::ostream& os, Indent indent) const;
/** Internal typedefs. SpeedImageType defined to work around the Borland
* compiler's improper handling of default template parameters that use
* dependent non-type templates. */
typedef Image<float, itkGetStaticConstMacro(SetDimension) > SpeedImageType;
typedef LevelSetNeighborhoodExtractor<TLevelSet> LocatorType;
typedef FastMarchingImageFilter<TLevelSet, SpeedImageType> FastMarchingImageFilterType;
void GenerateData();
virtual void GenerateDataFull();
virtual void GenerateDataNarrowBand();
virtual void AllocateOutput();
virtual void GenerateInputRequestedRegion();
virtual void EnlargeOutputRequestedRegion( DataObject * );
void SetOutputNarrowBand( NodeContainer *ptr )
{ m_OutputNarrowBand = ptr; }
private:
ReinitializeLevelSetImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
double m_LevelSetValue;
typename LocatorType::Pointer m_Locator;
typename FastMarchingImageFilterType::Pointer m_Marcher;
bool m_NarrowBanding;
double m_InputNarrowBandwidth;
double m_OutputNarrowBandwidth;
NodeContainerPointer m_InputNarrowBand;
NodeContainerPointer m_OutputNarrowBand;
};
} // namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkReinitializeLevelSetImageFilter.txx"
#endif
#endif