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itkMeanShiftModeCacheMethod.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkMeanShiftModeCacheMethod.h,v $
00005   Language:  C++
00006   Date:      $Date: 2009-03-04 15:23:58 $
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 
00018 #ifndef __itkMeanShiftModeCacheMethod_h
00019 #define __itkMeanShiftModeCacheMethod_h
00020 
00021 #include <map>
00022 #include "itkMacro.h"
00023 #include "itkObject.h"
00024 #include "itkMeasurementVectorTraits.h"
00025 
00026 namespace itk { 
00027 namespace Statistics {
00028   
00056 template< class TMeasurementVector >
00057 class MeanShiftModeCacheMethod :
00058     public Object
00059 {
00060 public:
00062   typedef MeanShiftModeCacheMethod Self;
00063   typedef Object                   Superclass;
00064   typedef SmartPointer<Self>       Pointer;
00065   typedef SmartPointer<const Self> ConstPointer;
00066 
00068   itkTypeMacro(MeanShiftModeCacheMethod, Object);
00069   itkNewMacro(Self);
00071 
00072   typedef TMeasurementVector MeasurementVectorType;
00073 
00074   struct LessMeasurementVector
00075     {
00076     bool operator()(const MeasurementVectorType& mv1, 
00077                     const MeasurementVectorType& mv2) const
00078       {
00079       // It is assumed that mv1 and mv2 are of the same length. For efficieny,
00080       // no checking is performed here.
00081       for ( unsigned int i = 0; 
00082             i < MeasurementVectorTraits::GetLength( &mv1 );
00083             ++i )
00084         {
00085         if (mv1[i] < mv2[i])
00086           {
00087           return true;
00088           }
00089         }
00090       return false;
00091       }
00092   }; // end of struct
00093 
00094   typedef std::map< MeasurementVectorType, MeasurementVectorType, LessMeasurementVector > CacheTableType;
00095 
00096   void SetMaximumConsecutiveFailures(unsigned int number)
00097     { m_MaximumConsecutiveFailures = number; }
00098 
00099   unsigned int GetMaximumConsecutiveFailures()
00100     { return m_MaximumConsecutiveFailures; }
00101   
00102   void SetHitRatioThreshold(float threshold)
00103     { m_HitRatioThreshold = threshold; }
00104 
00105   void SetMaximumEntries(unsigned int number)
00106     { m_MaximumEntries = number; }
00107 
00108   unsigned int GetMaximumEntries()
00109     { return m_MaximumEntries; }
00110 
00111   bool SetMeasurementVector(MeasurementVectorType& source, 
00112                             MeasurementVectorType& target);
00113 
00114   bool GetMeasurementVector(MeasurementVectorType& source,
00115                             MeasurementVectorType& target);
00116 
00117   bool IsFull();
00118 
00119   void DestroyCacheTable();
00120 
00121 protected:
00122   MeanShiftModeCacheMethod();
00123   virtual ~MeanShiftModeCacheMethod();
00124   void PrintSelf(std::ostream& os, Indent indent) const;
00125 
00126 private:
00127   unsigned int m_MaximumEntries;
00128   float        m_HitRatioThreshold;
00129   unsigned int m_MaximumConsecutiveFailures;
00130 
00131   unsigned int m_NumberOfRequests;
00132   unsigned int m_ConsecutiveFailures;
00133   unsigned int m_HitsSuccess;
00134 
00135   unsigned long m_TotalHitsSuccess;
00136   unsigned long m_TotalHitsFailure;
00137 
00138   unsigned long m_TotalTableSize;
00139   unsigned int  m_TimesOfRebuilding;
00140 
00141   unsigned int m_TimesOfRebuildingByHitRatio;
00142   unsigned int m_TimesOfRebuildingByConsecutiveFailures;
00143 
00144   CacheTableType m_CacheTable;
00145 }; // end of class
00146     
00147 } // end of namespace Statistics 
00148 } // end of namespace itk 
00149 
00150 #ifndef ITK_MANUAL_INSTANTIATION
00151 #include "itkMeanShiftModeCacheMethod.txx"
00152 #endif
00153 
00154 #endif
00155 

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