Main Page   Groups   Namespace List   Class Hierarchy   Alphabetical List   Compound List   File List   Namespace Members   Compound Members   File Members   Concepts

itkRBFLayer.h

Go to the documentation of this file.
00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkRBFLayer.h,v $
00005   Language:  C++
00006   Date:      $Date: 2006/04/17 21:34:31 $
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 #ifndef __itkRBFLayerBase_h
00018 #define __itkRBFLayerBase_h
00019 
00020 #include "itkLayerBase.h"
00021 #include "itkObject.h"
00022 #include "itkMacro.h"
00023 #include "itkRadialBasisFunctionBase.h"
00024 #include "itkEuclideanDistance.h"
00025 
00026 namespace itk
00027 {
00028 namespace Statistics
00029 {
00030 
00031 template<class TVector, class TOutput>
00032 class RBFLayer : public LayerBase<TVector, TOutput>
00033 {
00034 public:       
00035   
00036   typedef RBFLayer Self;
00037   typedef LayerBase<TVector, TOutput> Superclass;
00038   typedef SmartPointer<Self> Pointer;
00039   typedef SmartPointer<const Self> ConstPointer;
00040 
00042   itkTypeMacro(RBFLayer, LayerBase);  
00043   itkNewMacro(Self) ;
00045 
00046   typedef typename Superclass::ValueType ValueType;
00047   typedef typename Superclass::ValuePointer ValuePointer;
00048   typedef vnl_vector<ValueType> NodeVectorType;
00049   //typedef Array<ValueType> NodeArrayType;
00050   typedef typename Superclass::InternalVectorType InternalVectorType;
00051 
00052   typedef typename Superclass::OutputVectorType OutputVectorType;
00053   
00054   typedef RadialBasisFunctionBase<ValueType> RBFType;
00055 
00056   //Distance Metric
00057   typedef EuclideanDistance<InternalVectorType> DistanceMetricType; 
00058   typedef typename DistanceMetricType::Pointer DistanceMetricPointer;
00059   //Member Functions
00060   void SetNumberOfNodes(unsigned int numNodes);
00061   //void SetMeasurementVectorSize(unsigned int size);
00062   itkGetMacro(RBF_Dim, unsigned int);
00063   void SetRBF_Dim(unsigned int size);
00064  
00065 
00066   ValueType GetInputValue(unsigned int i);
00067   void SetInputValue(unsigned int i,ValueType value);
00068 
00069   itkGetMacro(LayerType, unsigned int);
00070 
00071   ValueType GetOutputValue(int);
00072   void SetOutputValue(int, ValueType);
00073 
00074   ValuePointer GetOutputVector();
00075   void SetOutputVector(TVector value);
00076 
00077   void ForwardPropagate();
00078   void ForwardPropagate(TVector input);
00079 
00080   void BackwardPropagate();
00081   void BackwardPropagate(TOutput itkNotUsed(errors)){};
00082 
00083   void SetOutputErrorValues(TOutput);
00084   ValueType GetOutputErrorValue(unsigned int node_id);
00085 
00086   
00087   ValueType GetInputErrorValue(int node_id);
00088   ValuePointer GetInputErrorVector();
00089   void SetInputErrorValue(ValueType, int node_id);
00090 
00091   //TVector GetCenter(int i);
00092   InternalVectorType GetCenter(int i);
00093   void SetCenter(TVector c,int i);
00094 
00095   ValueType GetRadii(int i);
00096   void SetRadii(ValueType c,int i);
00097 
00098 
00099   ValueType Activation(ValueType);
00100   ValueType DActivation(ValueType);
00101 
00102   void SetBias(ValueType b);
00103 
00104   ValueType GetBias();
00105 
00106   void SetDistanceMetric(DistanceMetricType* f);
00107   DistanceMetricPointer GetDistanceMetric(){return m_DistanceMetric;}
00108 
00109   itkSetMacro(NumClasses, int);
00110   itkGetConstReferenceMacro(NumClasses,int);
00111 
00112   void SetRBF(RBFType* f);
00113   itkGetObjectMacro(RBF, RBFType);
00114 
00115 protected:                
00116 
00117    RBFLayer();
00118   ~RBFLayer();
00119   
00121   virtual void PrintSelf( std::ostream& os, Indent indent ) const;
00122 
00123 private:
00124   
00125   typename DistanceMetricType::Pointer  m_DistanceMetric;
00126   NodeVectorType                        m_NodeInputValues;
00127   NodeVectorType                        m_NodeOutputValues;
00128   NodeVectorType                        m_InputErrorValues;
00129   NodeVectorType                        m_OutputErrorValues;
00130   //std::vector<TVector>                  m_Centers;  // ui....uc
00131   std::vector<InternalVectorType>       m_Centers;  // ui....uc
00132   InternalVectorType                    m_Radii;
00133   int                                   m_NumClasses;
00134   ValueType                             m_Bias;
00135   int                                   m_RBF_Dim;
00136   typename RBFType::Pointer             m_RBF;
00137 };
00138 
00139 } // end namespace Statistics
00140 } // end namespace itk
00141 
00142 #ifndef ITK_MANUAL_INSTANTIATION
00143   #include "itkRBFLayer.txx"
00144 #endif
00145 
00146 #endif
00147 

Generated at Sat Sep 2 21:01:42 2006 for ITK by doxygen 1.4.7 written by Dimitri van Heesch, © 1997-2000