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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkFastMarchingExtensionImageFilter_h
#define itkFastMarchingExtensionImageFilter_h
#include "itkFastMarchingImageFilter.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.
*
* 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.
*
* For an alternative implementation, see itk::FastMarchingExtensionImageFilterBase.
*
* \sa FastMarchingExtensionImageFilterBase
* \sa FastMarchingImageFilter
* \sa LevelSetTypeDefault
* \sa AuxVarTypeDefault
* \ingroup LevelSetSegmentation
* \ingroup ITKFastMarching
*/
template<
typename TLevelSet,
typename TAuxValue,
unsigned int VAuxDimension = 1,
typename TSpeedImage = Image< float, TLevelSet ::ImageDimension >
>
class ITK_TEMPLATE_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;
}
#ifdef ITK_USE_CONCEPT_CHECKING
// Begin concept checking
itkConceptMacro( AuxValueHasNumericTraitsCheck,
( Concept::HasNumericTraits< TAuxValue > ) );
// End concept checking
#endif
protected:
FastMarchingExtensionImageFilter();
~FastMarchingExtensionImageFilter() ITK_OVERRIDE {}
void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
virtual void Initialize(LevelSetImageType *) ITK_OVERRIDE;
virtual double UpdateValue(const IndexType & index,
const SpeedImageType *speed, LevelSetImageType *output) ITK_OVERRIDE;
/** Generate the output image meta information */
virtual void GenerateOutputInformation() ITK_OVERRIDE;
virtual void EnlargeOutputRequestedRegion(DataObject *output) ITK_OVERRIDE;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(FastMarchingExtensionImageFilter);
typename AuxValueContainer::Pointer m_AuxAliveValues;
typename AuxValueContainer::Pointer m_AuxTrialValues;
AuxImageType *m_AuxImages[AuxDimension];
};
} // namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkFastMarchingExtensionImageFilter.hxx"
#endif
#endif
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