itkShapePriorMAPCostFunctionBase.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkShapePriorMAPCostFunctionBase.h,v $
  Language:  C++
  Date:      $Date: 2009-01-27 19:30:15 $
  Version:   $Revision: 1.6 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/
#ifndef __itkShapePriorMAPCostFunctionBase_h
#define __itkShapePriorMAPCostFunctionBase_h

#include "itkSingleValuedCostFunction.h"
#include "itkLevelSet.h"
#include "itkShapeSignedDistanceFunction.h"

namespace itk
{
  
template <class TFeatureImage, class TOutputPixel>
class ITK_EXPORT ShapePriorMAPCostFunctionBase : 
          public SingleValuedCostFunction 
{
public:
  typedef ShapePriorMAPCostFunctionBase Self;
  typedef SingleValuedCostFunction      Superclass;
  typedef SmartPointer<Self>            Pointer;
  typedef SmartPointer<const Self>      ConstPointer;

  itkTypeMacro( ShapePriorMAPCostFunctionBase, SingleValuedCostFunction );

  typedef typename Superclass::MeasureType       MeasureType;

  typedef typename Superclass::DerivativeType    DerivativeType;

  typedef typename Superclass::ParametersType    ParametersType;

  typedef TFeatureImage                              FeatureImageType;
  typedef typename FeatureImageType::ConstPointer    FeatureImagePointer;

  itkStaticConstMacro( ImageDimension, unsigned int, TFeatureImage::ImageDimension);

  typedef TOutputPixel PixelType;

  typedef LevelSetNode<PixelType, itkGetStaticConstMacro(ImageDimension)>   NodeType;

  typedef VectorContainer<unsigned int, NodeType>   NodeContainerType;
  typedef typename NodeContainerType::ConstPointer  NodeContainerPointer;

  typedef ShapeSignedDistanceFunction<double,
                                      itkGetStaticConstMacro(ImageDimension)> ShapeFunctionType;
  typedef typename ShapeFunctionType::Pointer            ShapeFunctionPointer;

  itkSetObjectMacro( ShapeFunction, ShapeFunctionType );
  itkGetObjectMacro( ShapeFunction, ShapeFunctionType );

  itkSetConstObjectMacro( ActiveRegion, NodeContainerType );
  itkGetConstObjectMacro( ActiveRegion, NodeContainerType );

  itkSetConstObjectMacro( FeatureImage, FeatureImageType );
  itkGetConstObjectMacro( FeatureImage, FeatureImageType );

  virtual MeasureType GetValue( const ParametersType & parameters ) const;


  virtual void GetDerivative( const ParametersType &, DerivativeType & ) const
    { itkExceptionMacro( << "This function is currently not supported." ); }

  virtual unsigned int GetNumberOfParameters(void) const
    { return m_ShapeFunction->GetNumberOfParameters(); }


  virtual MeasureType ComputeLogInsideTerm( const ParametersType & ) const = 0;

  virtual MeasureType ComputeLogGradientTerm( const ParametersType & ) const = 0;

  virtual MeasureType ComputeLogShapePriorTerm( const ParametersType & ) const = 0;

  virtual MeasureType ComputeLogPosePriorTerm( const ParametersType & ) const = 0;

  virtual void Initialize(void) throw ( ExceptionObject );

  
protected:
  ShapePriorMAPCostFunctionBase();
  virtual ~ShapePriorMAPCostFunctionBase() {};

  void PrintSelf(std::ostream& os, Indent indent) const;

  ShapeFunctionPointer    m_ShapeFunction;
  NodeContainerPointer    m_ActiveRegion;
  FeatureImagePointer     m_FeatureImage;

private:
  ShapePriorMAPCostFunctionBase(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

};


} // end namespace itk


#ifndef ITK_MANUAL_INSTANTIATION
#include "itkShapePriorMAPCostFunctionBase.txx"
#endif

#endif

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