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itkSquaredDifferenceErrorFunction.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkSquaredDifferenceErrorFunction.h,v $
00005   Language:  C++
00006   Date:      $Date: 2009-01-28 21:04:59 $
00007   Version:   $Revision: 1.5 $
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 __itkSquaredDifferenceErrorFunction_h
00018 #define __itkSquaredDifferenceErrorFunction_h
00019 
00020 #include "itkErrorFunctionBase.h"
00021 #include "vnl/vnl_matrix.h"
00022 #include "vnl/vnl_vector.h"
00023 
00024 namespace itk
00025 {
00026 namespace Statistics
00027 {
00028 
00029 template<class TMeasurementVector, class ScalarType>
00030 class SquaredDifferenceErrorFunction : public ErrorFunctionBase<TMeasurementVector, ScalarType>
00031 {
00032 public:
00033 
00035   typedef SquaredDifferenceErrorFunction                    Self;
00036   typedef ErrorFunctionBase<TMeasurementVector, ScalarType> Superclass;
00037   typedef SmartPointer<Self>                                Pointer;
00038   typedef SmartPointer<const Self>                          ConstPointer;
00039 
00040   typedef typename Superclass::ErrorVectorType    ErrorVectorType;
00041   typedef typename Superclass::InternalVectorType InternalVectorType;
00042 
00044   itkTypeMacro(SquaredDifferenceErrorFunction, FunctionBase);
00045 
00047   itkNewMacro(Self);
00048 
00050   virtual ScalarType Evaluate(const TMeasurementVector& Errors) const;
00051 
00052   virtual InternalVectorType EvaluateDerivative(const TMeasurementVector& Errors) const;
00053 
00054 protected:
00055 
00056   SquaredDifferenceErrorFunction();
00057   virtual ~SquaredDifferenceErrorFunction();
00058 
00060   virtual void PrintSelf( std::ostream& os, Indent indent ) const;
00061 };
00062 
00063 } // end namespace Statistics
00064 } // end namespace itk
00065 
00066 #ifndef ITK_MANUAL_INSTANTIATION
00067   #include "itkSquaredDifferenceErrorFunction.txx"
00068 #endif
00069 
00070 
00071 #endif
00072 

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