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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkExtensionVelocitiesImageFilter.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 __itkExtensionVelocitiesImageFilter_h
#define __itkExtensionVelocitiesImageFilter_h
#include "itkLevelSetVelocityNeighborhoodExtractor.h"
#include "itkFastMarchingExtensionImageFilter.h"
#include "itkReinitializeLevelSetImageFilter.h"
namespace itk
{
/** \class ExtensionVelocitiesImageFilter
* \brief Extend velocities smoothly from a particular level set.
*
* ExtensionVelocitiesImageFilter extends velocities smoothly from a particular
* level set.
*
* This class is templated over the image type which represents
* the level set, the type of the velocity and the
* number of velocities to be extended.
*
* 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 extended velocity 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 TAuxValue = float,
unsigned int VAuxDimension = 1
>
class ITK_EXPORT ExtensionVelocitiesImageFilter :
public ReinitializeLevelSetImageFilter<TLevelSet>
{
public:
/** Standard class typedefs. */
typedef ExtensionVelocitiesImageFilter Self;
typedef ReinitializeLevelSetImageFilter<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(ExtensionVelocitiesImageFilter, ReinitializeLevelSetImageFilter);
/** The type of level set and the pointer type. */
typedef LevelSetTypeDefault<TLevelSet> LevelSetType;
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;
/** The dimension of the level set. */
itkStaticConstMacro(SetDimension, unsigned int,LevelSetType::SetDimension);
/** AuxVarType typedef support. */
typedef AuxVarTypeDefault<TAuxValue,VAuxDimension,
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;
typedef typename AuxVarType::AuxImageConstPointer AuxImageConstPointer;
/** Number of velocity images to be extended. */
itkStaticConstMacro(AuxDimension, unsigned int,VAuxDimension);
/** Set/Get one of the input velocity images to be extended. */
void SetInputVelocityImage(const AuxImageType * ptr, unsigned int idx = 0);
const AuxImageType * GetInputVelocityImage(unsigned int idx = 0);
/** Get one of the extended velocity images. */
AuxImageType * GetOutputVelocityImage( unsigned int idx = 0 );
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro(AuxValueHasNumericTraitsCheck,
(Concept::HasNumericTraits<TAuxValue>));
itkConceptMacro(LevelSetOStreamWritableCheck,
(Concept::OStreamWritable<PixelType>));
/** End concept checking */
#endif
protected:
ExtensionVelocitiesImageFilter();
~ExtensionVelocitiesImageFilter(){};
virtual void GenerateDataFull();
virtual void GenerateDataNarrowBand();
virtual void AllocateOutput();
virtual void EnlargeOutputRequestedRegion( DataObject * );
private:
ExtensionVelocitiesImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
/** 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 LevelSetVelocityNeighborhoodExtractor<TLevelSet,TAuxValue,VAuxDimension>
LocatorType;
typedef FastMarchingExtensionImageFilter<TLevelSet,TAuxValue,VAuxDimension,SpeedImageType>
FastMarchingImageFilterType;
typename LocatorType::Pointer m_Locator;
typename FastMarchingImageFilterType::Pointer m_Marcher;
};
} // namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkExtensionVelocitiesImageFilter.txx"
#endif
#endif
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