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itkMultiphaseFiniteDifferenceImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkMultiphaseFiniteDifferenceImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2009-07-29 15:14:03 $
00007   Version:   $Revision: 1.7 $
00008 
00009   Copyright (c) Insight Software Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012      This software is distributed WITHOUT ANY WARRANTY; without even
00013      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00014      PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 
00018 #ifndef __itkMultiphaseFiniteDifferenceImageFilter_h
00019 #define __itkMultiphaseFiniteDifferenceImageFilter_h
00020 
00021 #include "itkArray.h"
00022 #include "itkInPlaceImageFilter.h"
00023 #include "itkFiniteDifferenceFunction.h"
00024 #include <vnl/vnl_vector.h>
00025 #include "itkImageRegionIterator.h"
00026 
00027 #include "itkVector.h"
00028 #include "itkListSample.h"
00029 #include "itkKdTree.h"
00030 #include "itkKdTreeGenerator.h"
00031 
00032 namespace itk {
00033 
00161  template < class TInputImage,
00162   class TFeatureImage,
00163   class TOutputImage,
00164   class TFiniteDifferenceFunction = FiniteDifferenceFunction<TOutputImage>,
00165   typename TIdCell = unsigned int >
00166 class ITK_EXPORT MultiphaseFiniteDifferenceImageFilter
00167   : public InPlaceImageFilter< TFeatureImage, TOutputImage >
00168 {
00169 public:
00170 
00172   typedef MultiphaseFiniteDifferenceImageFilter           Self;
00173   typedef InPlaceImageFilter<TFeatureImage, TOutputImage> Superclass;
00174   typedef SmartPointer<Self>                              Pointer;
00175   typedef SmartPointer<const Self>                        ConstPointer;
00176 
00178   itkTypeMacro( MultiphaseFiniteDifferenceImageFilter, InPlaceImageFilter );
00179 
00181   itkStaticConstMacro(ImageDimension, unsigned int, TOutputImage::ImageDimension);
00182 
00184   typedef TInputImage                                 InputImageType;
00185   typedef typename InputImageType::Pointer            InputImagePointer;
00186   typedef typename InputImageType::PointType          InputPointType;
00187   typedef typename InputPointType::CoordRepType       InputCoordRepType;
00188   typedef typename InputImageType::IndexType          InputIndexType;
00189   typedef typename InputIndexType::IndexValueType     InputIndexValueType;
00190   typedef typename InputImageType::SizeType           InputSizeType;
00191   typedef typename InputSizeType::SizeValueType       InputSizeValueType;
00192   typedef typename InputImageType::RegionType         InputRegionType;
00193   typedef typename InputImageType::PixelType          InputPixelType;
00194   typedef typename InputImageType::SpacingType        InputSpacingType;
00195 
00196   typedef TFeatureImage                               FeatureImageType;
00197   typedef typename FeatureImageType::Pointer          FeatureImagePointer;
00198   typedef typename FeatureImageType::RegionType       FeatureRegionType;
00199   typedef typename FeatureImageType::SizeType         FeatureSizeType;
00200   typedef typename FeatureImageType::SpacingType      FeatureSpacingType;
00201   typedef typename FeatureImageType::PointType        FeaturePointType;
00202   typedef typename FeatureImageType::PixelType        FeaturePixelType;
00203 
00204   typedef TOutputImage                                OutputImageType;
00205   typedef typename OutputImageType::Pointer           OutputImagePointer;
00206   typedef typename OutputImageType::PixelType         OutputPixelType;
00207   typedef typename OutputImageType::RegionType        OutputRegionType;
00208   typedef typename OutputImageType::SizeType          OutputSizeType;
00209   typedef typename OutputImageType::SizeValueType     OutputSizeValueType;
00210   typedef typename OutputImageType::IndexType         OutputIndexType;
00211   typedef typename OutputImageType::IndexValueType    OutputIndexValueType;
00212 
00213   typedef TIdCell                                   IdCellType;
00214   typedef std::vector< IdCellType >                 VectorIdCellType;
00215 
00219   typedef TFiniteDifferenceFunction                             FiniteDifferenceFunctionType;
00220   typedef typename FiniteDifferenceFunctionType::Pointer        FiniteDifferenceFunctionPointer;
00221   typedef typename FiniteDifferenceFunctionType::TimeStepType   TimeStepType;
00222   typedef typename std::vector< TimeStepType >                  TimeStepVectorType;
00223   typedef typename FiniteDifferenceFunctionType::RadiusType     RadiusType;
00224 
00225   typedef Vector< float, itkGetStaticConstMacro(ImageDimension) >
00226                                                                 CentroidVectorType;
00227   typedef Statistics::ListSample< CentroidVectorType >          SampleType;
00228   typedef Statistics::KdTreeGenerator< SampleType >             KdTreeGeneratorType;
00229   typedef typename KdTreeGeneratorType::Pointer                 KdTreeGeneratorPointer;
00230   typedef typename KdTreeGeneratorType::KdTreeType              KdTreeType;
00231   typedef typename KdTreeType::Pointer                          KdTreePointer;
00232 
00237   virtual const FiniteDifferenceFunctionPointer GetDifferenceFunction(
00238     const IdCellType& functionIndex ) const
00239     {
00240     if( functionIndex < m_FunctionCount )
00241       {
00242       return ( this->m_DifferenceFunctions[functionIndex] );
00243       }
00244     else
00245       {
00246       return 0;
00247       }
00248     }
00250 
00255   virtual void SetDifferenceFunction( const IdCellType& functionIndex,
00256     FiniteDifferenceFunctionPointer function)
00257     {
00258     if( functionIndex < m_FunctionCount )
00259       {
00260       this->m_DifferenceFunctions[functionIndex] = function;
00261       }
00262     }
00264 
00266   itkSetMacro(NumberOfIterations, unsigned int);
00267   itkGetConstReferenceMacro(NumberOfIterations, unsigned int);
00269 
00272   itkSetMacro(UseImageSpacing,bool);
00273   itkBooleanMacro(UseImageSpacing);
00274   itkGetConstReferenceMacro(UseImageSpacing, bool);
00276 
00279   itkSetMacro(MaximumRMSError, double);
00280   itkGetConstReferenceMacro(MaximumRMSError, double);
00282 
00285   itkSetMacro(RMSChange, double);
00286   itkGetConstReferenceMacro(RMSChange, double);
00288 
00290   itkSetMacro( InitializedState, bool );
00291   itkGetConstReferenceMacro( InitializedState, bool );
00292   itkBooleanMacro( InitializedState );
00294 
00297   itkSetMacro( ManualReinitialization, bool );
00298   itkGetConstReferenceMacro( ManualReinitialization, bool );
00299   itkBooleanMacro( ManualReinitialization );
00301 
00303   itkSetMacro( ElapsedIterations, unsigned int );
00304 
00306   itkGetConstReferenceMacro( ElapsedIterations, unsigned int );
00307 
00308   void SetLevelSet( const IdCellType & i, const InputImageType *levelSet )
00309     {
00310     m_LevelSet[i] = InputImageType::New();
00311     m_LevelSet[i]->SetRequestedRegion( levelSet->GetRequestedRegion() );
00312     m_LevelSet[i]->SetBufferedRegion( levelSet->GetBufferedRegion() );
00313     m_LevelSet[i]->SetLargestPossibleRegion( levelSet->GetLargestPossibleRegion() );
00314     m_LevelSet[i]->Allocate();
00315     m_LevelSet[i]->CopyInformation( levelSet );
00316 
00317     ImageRegionConstIterator< InputImageType > in ( levelSet, levelSet->GetBufferedRegion());
00318     ImageRegionIterator< InputImageType > cp ( m_LevelSet[i], levelSet->GetBufferedRegion()  );
00319 
00320     in.GoToBegin();
00321     cp.GoToBegin();
00322 
00323     while( !in.IsAtEnd() )
00324       {
00325       cp.Set( in.Get() );
00326       ++in;
00327       ++cp;
00328       }
00329     }
00330 
00331   InputImagePointer GetLevelSet( const IdCellType& i )
00332     {
00333     if( i >= m_FunctionCount )
00334       {
00335       itkExceptionMacro("Request for level set #" << i
00336         << " but there are only " << m_FunctionCount );
00337       }
00338     else
00339       {
00340       return m_LevelSet[i];
00341       }
00342     }
00343 
00344   void SetLookup ( VectorIdCellType lookup )
00345     {
00346     this->m_Lookup = lookup;
00347     }
00348 
00349   void SetKdTree( KdTreeType * kdtree )
00350     {
00351     this->m_KdTree = kdtree;
00352     }
00353 
00354   void SetFunctionCount( const IdCellType& n )
00355     {
00356     m_FunctionCount = n;
00357 
00358     m_DifferenceFunctions.resize( m_FunctionCount, 0 );
00359 
00360     RadiusType radius;
00361     radius.Fill( 1 );
00362 
00363     for( unsigned int i = 0; i < this->m_FunctionCount; i++ )
00364       {
00365       this->m_DifferenceFunctions[i] = FiniteDifferenceFunctionType::New();
00366       this->m_DifferenceFunctions[i]->Initialize(radius);
00367       }
00368 
00369     // Initialize the images
00370     m_LevelSet.resize( m_FunctionCount, 0 );
00371 
00372     // Initialize the lookup table
00373     this->m_Lookup.resize( m_FunctionCount );
00374 
00375     IdCellType k = 1;
00376 
00377     typedef typename std::vector< IdCellType >::iterator  VectorIteratorType;
00378 
00379     VectorIteratorType it = this->m_Lookup.begin();
00380 
00381     while( it != this->m_Lookup.end() )
00382       {
00383       *it = k;
00384       ++it;
00385       ++k;
00386       }
00387     }
00388 
00389 protected:
00390   MultiphaseFiniteDifferenceImageFilter()
00391     {
00392     this->m_KdTree = 0;
00393     this->m_ElapsedIterations = 0;
00394     this->m_MaximumRMSError = vnl_math::eps;
00395     this->m_RMSChange = NumericTraits<double>::max();
00396     this->m_UseImageSpacing = true;
00397     this->m_ManualReinitialization = false;
00398     this->m_InitializedState = false;
00399     this->m_NumberOfIterations = NumericTraits<unsigned int>::max();
00400     this->m_FunctionCount = 0;
00401     this->InPlaceOff();
00402     }
00403 
00404   ~MultiphaseFiniteDifferenceImageFilter(){}
00405 
00406   IdCellType                          m_FunctionCount;
00407   std::vector< InputImagePointer >    m_LevelSet;
00408   VectorIdCellType                    m_Lookup;
00409   KdTreePointer                       m_KdTree;
00410 
00411   unsigned int                        m_ElapsedIterations;
00412   double                              m_MaximumRMSError;
00413   double                              m_RMSChange;
00414   unsigned int                        m_NumberOfIterations;
00415 
00417   std::vector< FiniteDifferenceFunctionPointer > m_DifferenceFunctions;
00418 
00421   bool m_UseImageSpacing;
00422 
00423   void PrintSelf(std::ostream& os, Indent indent) const;
00424 
00426   virtual void AllocateUpdateBuffer() = 0;
00427 
00431   virtual void ApplyUpdate(TimeStepType dt) = 0;
00432 
00438   virtual TimeStepType CalculateChange() = 0;
00439 
00443   virtual void CopyInputToOutput() = 0;
00444 
00448   virtual void GenerateData();
00449 
00461   virtual void GenerateInputRequestedRegion();
00462 
00465   virtual bool Halt();
00466 
00476   virtual bool ThreadedHalt(void *itkNotUsed(threadInfo))
00477     {
00478     return this->Halt();
00479     }
00480 
00486   virtual void Initialize() { };
00487 
00494   virtual void InitializeIteration()
00495     {
00496     for( IdCellType i = 0; i < this->m_FunctionCount; i++ )
00497       {
00498       this->m_DifferenceFunctions[i]->InitializeIteration();
00499       }
00500     }
00502 
00516   inline TimeStepType ResolveTimeStep(const TimeStepVectorType& timeStepList,
00517     const std::vector< bool >& valid );
00518 
00521   virtual void PostProcessOutput() {}
00522 
00523 
00524 private:
00525   MultiphaseFiniteDifferenceImageFilter(const Self&);
00526   //purposely not implemented
00527   void operator=(const Self&); //purposely not implemented
00528 
00531   bool m_ManualReinitialization;
00532 
00534   bool m_InitializedState;
00535 };
00536 
00537 }// end namespace itk
00538 
00539 #ifndef ITK_MANUAL_INSTANTIATION
00540 #include "itkMultiphaseFiniteDifferenceImageFilter.txx"
00541 #endif
00542 
00543 #endif
00544 

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