ITK  4.1.0
Insight Segmentation and Registration Toolkit
itkWeightedCovarianceSampleFilter.h
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00001 /*=========================================================================
00002  *
00003  *  Copyright Insight Software Consortium
00004  *
00005  *  Licensed under the Apache License, Version 2.0 (the "License");
00006  *  you may not use this file except in compliance with the License.
00007  *  You may obtain a copy of the License at
00008  *
00009  *         http://www.apache.org/licenses/LICENSE-2.0.txt
00010  *
00011  *  Unless required by applicable law or agreed to in writing, software
00012  *  distributed under the License is distributed on an "AS IS" BASIS,
00013  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  *  See the License for the specific language governing permissions and
00015  *  limitations under the License.
00016  *
00017  *=========================================================================*/
00018 #ifndef __itkWeightedCovarianceSampleFilter_h
00019 #define __itkWeightedCovarianceSampleFilter_h
00020 
00021 #include "itkFunctionBase.h"
00022 #include "itkCovarianceSampleFilter.h"
00023 #include "itkDataObjectDecorator.h"
00024 
00025 namespace itk
00026 {
00027 namespace Statistics
00028 {
00042 template< class TSample >
00043 class ITK_EXPORT WeightedCovarianceSampleFilter:
00044   public CovarianceSampleFilter< TSample >
00045 {
00046 public:
00048   typedef WeightedCovarianceSampleFilter    Self;
00049   typedef CovarianceSampleFilter< TSample > Superclass;
00050   typedef SmartPointer< Self >              Pointer;
00051   typedef SmartPointer< const Self >        ConstPointer;
00052 
00054   itkTypeMacro(WeightedCovarianceSampleFilter, CovarianceSampleFilter);
00055   itkNewMacro(Self);
00057 
00059   typedef typename Superclass::SampleType                     SampleType;
00060   typedef typename Superclass::MeasurementVectorType          MeasurementVectorType;
00061   typedef typename Superclass::MeasurementVectorSizeType      MeasurementVectorSizeType;
00062   typedef typename Superclass::MeasurementVectorDecoratedType MeasurementVectorDecoratedType;
00063   typedef typename Superclass::OutputType                     OutputType;
00064   typedef typename Superclass::MeasurementRealType            MeasurementRealType;
00065   typedef typename Superclass::MeasurementVectorRealType      MeasurementVectorRealType;
00066 
00068   typedef VariableSizeMatrix< double > MatrixType;
00069 
00071   typedef FunctionBase< MeasurementVectorType, double > WeightingFunctionType;
00072 
00075   typedef  SimpleDataObjectDecorator< MatrixType > MatrixDecoratedType;
00076 
00078   typedef Array< double > WeightArrayType;
00079 
00081   typedef SimpleDataObjectDecorator< WeightArrayType > InputWeightArrayObjectType;
00082 
00084   itkSetGetDecoratedInputMacro(Weights, WeightArrayType);
00085 
00087   typedef DataObjectDecorator< WeightingFunctionType > InputWeightingFunctionObjectType;
00088 
00090   itkSetGetDecoratedObjectInputMacro(WeightingFunction, WeightingFunctionType);
00091 
00092 protected:
00093   WeightedCovarianceSampleFilter();
00094   virtual ~WeightedCovarianceSampleFilter();
00095   void PrintSelf(std::ostream & os, Indent indent) const;
00096 
00097   void GenerateData();
00098 
00100   void ComputeCovarianceMatrixWithWeightingFunction();
00101 
00103   void ComputeCovarianceMatrixWithWeights();
00104 
00105 private:
00106   WeightedCovarianceSampleFilter(const Self &); //purposely not implemented
00107   void operator=(const Self &);                 //purposely not implemented
00108 
00109 };  // end of class
00110 } // end of namespace Statistics
00111 } // end of namespace itk
00112 
00113 #ifndef ITK_MANUAL_INSTANTIATION
00114 #include "itkWeightedCovarianceSampleFilter.hxx"
00115 #endif
00116 
00117 #endif
00118