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itkConjugateGradientOptimizer.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkConjugateGradientOptimizer.h,v $
00005   Language:  C++
00006   Date:      $Date: 2007/03/22 14:29:13 $
00007   Version:   $Revision: 1.27 $
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 __itkConjugateGradientOptimizer_h
00018 #define __itkConjugateGradientOptimizer_h
00019 
00020 #include "itkSingleValuedNonLinearVnlOptimizer.h"
00021 #include "vnl/algo/vnl_conjugate_gradient.h"
00022 
00023 namespace itk
00024 {
00025   
00031 class ITK_EXPORT ConjugateGradientOptimizer : 
00032     public SingleValuedNonLinearVnlOptimizer
00033 
00034 {
00035 public:
00037   typedef ConjugateGradientOptimizer          Self;
00038   typedef SingleValuedNonLinearVnlOptimizer   Superclass;
00039   typedef SmartPointer<Self>                  Pointer;
00040   typedef SmartPointer<const Self>            ConstPointer;
00041 
00043   itkNewMacro(Self);
00044 
00046   itkTypeMacro( ConjugateGradientOptimizer, SingleValuedNonLinearOptimizer );
00047 
00049   typedef   vnl_vector<double>     InternalParametersType;
00050 
00052   typedef   vnl_conjugate_gradient InternalOptimizerType;
00053 
00055   vnl_conjugate_gradient * GetOptimizer(void);
00056 
00058   void StartOptimization( void );
00059 
00061   virtual void SetCostFunction( SingleValuedCostFunction * costFunction );
00062 
00064   unsigned long GetNumberOfIterations(void) const;
00065   unsigned long GetCurrentIteration(void) const;
00067 
00069   MeasureType GetValue() const;
00070 
00071 protected:
00072   ConjugateGradientOptimizer();
00073   virtual ~ConjugateGradientOptimizer();
00074 
00075   typedef Superclass::CostFunctionAdaptorType   CostFunctionAdaptorType;
00076 
00077 private:
00078   ConjugateGradientOptimizer(const Self&); //purposely not implemented
00079   void operator=(const Self&); //purposely not implemented
00080   
00082   bool                         m_OptimizerInitialized;
00083   InternalOptimizerType      * m_VnlOptimizer;
00084 
00085 };
00086 
00087 } // end namespace itk
00088 
00089 
00090 #endif
00091 

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