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itkShapePriorSegmentationLevelSetFunction.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkShapePriorSegmentationLevelSetFunction.h,v $
00005   Language:  C++
00006   Date:      $Date: 2009-01-27 19:30:16 $
00007   Version:   $Revision: 1.6 $
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 #ifndef __itkShapePriorSegmentationLevelSetFunction_h
00018 #define __itkShapePriorSegmentationLevelSetFunction_h
00019 
00020 #include "itkSegmentationLevelSetFunction.h"
00021 #include "itkShapeSignedDistanceFunction.h"
00022 
00023 namespace itk {
00024 
00052 template <class TImageType, class TFeatureImageType = TImageType>
00053 class ITK_EXPORT ShapePriorSegmentationLevelSetFunction
00054   : public SegmentationLevelSetFunction<TImageType, TFeatureImageType>
00055 {
00056 public:
00058   typedef ShapePriorSegmentationLevelSetFunction Self;
00059   typedef SegmentationLevelSetFunction<TImageType,TFeatureImageType>
00060                                                  Superclass;
00061   typedef SmartPointer<Self>                     Pointer;
00062   typedef SmartPointer<const Self>               ConstPointer;
00063   typedef TFeatureImageType                      FeatureImageType;
00064 
00066   itkNewMacro(Self);
00067 
00069   itkTypeMacro( ShapePriorSegmentationLevelSetFunction, SegmentationLevelSetFunction );
00070 
00072   typedef typename Superclass::ImageType           ImageType;
00073   typedef typename Superclass::NeighborhoodType    NeighborhoodType;
00074   typedef typename Superclass::ScalarValueType     ScalarValueType;
00075   typedef typename Superclass::FeatureScalarType   FeatureScalarType;
00076   typedef typename Superclass::RadiusType          RadiusType;
00077   typedef typename Superclass::FloatOffsetType     FloatOffsetType;
00078   typedef typename Superclass::VectorImageType     VectorImageType;
00079   typedef typename Superclass::PixelType           PixelType;
00080   typedef typename Superclass::TimeStepType        TimeStepType;
00081   typedef typename Superclass::IndexType           IndexType;
00082   typedef typename Superclass::ContinuousIndexType ContinuousIndexType;
00083 
00085   itkStaticConstMacro(ImageDimension, unsigned int,
00086                       Superclass::ImageDimension);
00087 
00089   typedef ShapeSignedDistanceFunction<double,
00090                                       itkGetStaticConstMacro(ImageDimension)> ShapeFunctionType;
00091   typedef typename ShapeFunctionType::ConstPointer           ShapeFunctionPointer;
00092 
00094   void SetShapePriorWeight( const ScalarValueType p )
00095     { m_ShapePriorWeight = p; }
00096   ScalarValueType GetShapePriorWeight() const
00097     { return m_ShapePriorWeight; }
00099 
00102   void SetShapeFunction( const ShapeFunctionType * ptr )
00103     { m_ShapeFunction = ptr; }
00104   const ShapeFunctionType * GetShapeFunction() const
00105     { return m_ShapeFunction; }
00107 
00108 
00110   virtual PixelType ComputeUpdate(const NeighborhoodType &neighborhood,
00111                                   void *globalData,
00112                                   const FloatOffsetType& = FloatOffsetType(0.0));
00113 
00115   virtual TimeStepType ComputeGlobalTimeStep( void *globalData ) const;
00116 
00118   typedef typename Superclass::GlobalDataStruct GlobalDataStruct;
00119   struct ShapePriorGlobalDataStruct : public GlobalDataStruct
00120     {
00121     ScalarValueType m_MaxShapePriorChange;
00122     };
00123 
00125   virtual void *GetGlobalDataPointer() const
00126     {
00127     ShapePriorGlobalDataStruct *ans = new ShapePriorGlobalDataStruct();
00128     ans->m_MaxAdvectionChange   = NumericTraits<ScalarValueType>::Zero;
00129     ans->m_MaxPropagationChange = NumericTraits<ScalarValueType>::Zero;
00130     ans->m_MaxCurvatureChange   = NumericTraits<ScalarValueType>::Zero;
00131     ans->m_MaxShapePriorChange  = NumericTraits<ScalarValueType>::Zero;
00132     return ans; 
00133     }
00135 
00137   virtual void ReleaseGlobalDataPointer(void *GlobalData) const
00138     { delete (ShapePriorGlobalDataStruct *) GlobalData; }
00139 
00140 protected:
00141   ShapePriorSegmentationLevelSetFunction();
00142   virtual ~ShapePriorSegmentationLevelSetFunction() {}
00143 
00144   ShapePriorSegmentationLevelSetFunction(const Self&); //purposely not implemented
00145   void operator=(const Self&); //purposely not implemented
00146   
00147   void PrintSelf(std::ostream& os, Indent indent) const;
00148 
00149 private:
00150 
00151   ShapeFunctionPointer   m_ShapeFunction;
00152   ScalarValueType        m_ShapePriorWeight;
00153   
00154 };
00155   
00156 } // end namespace itk
00157 
00158 #ifndef ITK_MANUAL_INSTANTIATION
00159 #include "itkShapePriorSegmentationLevelSetFunction.txx"
00160 #endif
00161 
00162 #endif
00163 

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