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itkFastMarchingExtensionImageFilter.h
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itkFastMarchingExtensionImageFilter.h
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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkFastMarchingExtensionImageFilter.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 _itkFastMarchingExtensionImageFilter_h
#define _itkFastMarchingExtensionImageFilter_h
#include "itkFastMarchingImageFilter.h"
#include "itkImage.h"
#include "itkLevelSet.h"
namespace itk
{
/** \class FastMarchingExtensionImageFilter
* \brief Extend auxiliary variables smoothly using Fast Marching.
*
* Fast marching can be used to extend auxiliary variables smoothly
* from the zero level set. Starting from an initial position on the
* front, this class simultaneously calculate the signed distance and
* extend a set of auxiliary values.
*
* This class is templated over the level set image type, the auxiliary
* variable type and the number of auxiliary variables to extended. The initial
* front is specified by two containers: one containing the known points
* and one containing the trial points. The auxiliary variables on the front
* are represented by two auxiliary variable containers: one containing
* the value of the variables at the know points and on containing the
* value of the variables at the trail points.
*
* Implemenation of this class is based on Chapter 11 of
* "Level Set Methods and Fast Marching Methods", J.A. Sethian,
* Cambridge Press, Second edition, 1999.
*
* \sa FastMarchingImageFilter
* \sa LevelSetTypeDefault
* \sa AuxVarTypeDefault
* \ingroup LevelSetSegmentation
*/
template <
class TLevelSet,
class TAuxValue,
unsigned int VAuxDimension = 1,
class TSpeedImage = Image<float,::itk::GetImageDimension<TLevelSet>::ImageDimension>
>
class ITK_EXPORT FastMarchingExtensionImageFilter :
public FastMarchingImageFilter<TLevelSet,TSpeedImage>
{
public:
/** Standard class typdedefs. */
typedef FastMarchingExtensionImageFilter Self;
typedef FastMarchingImageFilter<TLevelSet,TSpeedImage> 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(FastMarchingExtensionImageFilter, FastMarchingImageFilter);
/** Inherited typedefs. */
typedef typename Superclass::LevelSetType LevelSetType;
typedef typename Superclass::SpeedImageType SpeedImageType;
typedef typename Superclass::LevelSetImageType LevelSetImageType;
/** The dimension of the level set. */
itkStaticConstMacro(SetDimension, unsigned int,Superclass::SetDimension);
/** Number of auxiliary variables to be extended. */
itkStaticConstMacro(AuxDimension, unsigned int,VAuxDimension);
/** AuxVarType typedef support. */
typedef AuxVarTypeDefault<TAuxValue,
itkGetStaticConstMacro(AuxDimension),
itkGetStaticConstMacro(SetDimension)> AuxVarType;
typedef typename AuxVarType::AuxValueType AuxValueType;
typedef typename AuxVarType::AuxValueVectorType AuxValueVectorType;
typedef typename AuxVarType::AuxValueContainer AuxValueContainer;
typedef typename AuxVarType::AuxImageType AuxImageType;
typedef typename AuxVarType::AuxImagePointer AuxImagePointer;
/** Index typedef support. */
typedef Index<itkGetStaticConstMacro(SetDimension)> IndexType;
/** Get one of the extended auxiliary variable image. */
AuxImageType * GetAuxiliaryImage( unsigned int idx );
/** Set the container auxiliary values at the initial alive points. */
void SetAuxiliaryAliveValues( AuxValueContainer * values )
{ m_AuxAliveValues = values; }
/** Get the container of auxiliary values at the initial alive points. */
AuxValueContainer * GetAuxiliaryAliveValues(void)
{ return m_AuxAliveValues.GetPointer(); }
/** Set the container of auxiliary values at the initial trial points. */
void SetAuxiliaryTrialValues( AuxValueContainer * values )
{ m_AuxTrialValues = values; }
/** Get the container of auxiliary values at the initial trial points. */
typename AuxValueContainer::Pointer GetAuxiliaryTrialValues()
{ return m_AuxTrialValues; }
protected:
FastMarchingExtensionImageFilter();
~FastMarchingExtensionImageFilter(){};
void PrintSelf( std::ostream& os, Indent indent ) const;
virtual void Initialize( LevelSetImageType * );
virtual double UpdateValue( const IndexType & index,
const SpeedImageType * speed, LevelSetImageType * output);
/** Generate the output image meta information */
virtual void GenerateOutputInformation();
virtual void EnlargeOutputRequestedRegion( DataObject *output );
private:
FastMarchingExtensionImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
typename AuxValueContainer::Pointer m_AuxAliveValues;
typename AuxValueContainer::Pointer m_AuxTrialValues;
};
} // namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkFastMarchingExtensionImageFilter.txx"
#endif
#endif