/usr/include/ITK-4.5/itkShapePriorMAPCostFunctionBase.h is in libinsighttoolkit4-dev 4.5.0-3.
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*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef __itkShapePriorMAPCostFunctionBase_h
#define __itkShapePriorMAPCostFunctionBase_h
#include "itkSingleValuedCostFunction.h"
#include "itkLevelSet.h"
#include "itkShapeSignedDistanceFunction.h"
namespace itk
{
/** \class ShapePriorMAPCostFunctionBase
* \brief Represents the base class of maximum aprior (MAP) cost function used
* ShapePriorSegmentationLevelSetImageFilter to estimate the shape paramaeters.
*
* This class follows the shape and pose parameters estimation developed in [1].
*
* This class has two template parameters, the feature image type representing the
* edge potential map and the pixel type used to
* represent the output level set in the ShapePriorSegmentationLevelSetImageFilter.
*
* \sa ShapePriorSegmentationLevelSetImageFilter
*
* \par REFERENCES
* \par
* [1] Leventon, M.E. et al. "Statistical Shape Influence in Geodesic Active Contours", CVPR 2000.
*
*
* \ingroup Numerics Optimizers
* \ingroup ITKLevelSets
*/
template< typename TFeatureImage, typename TOutputPixel >
class ShapePriorMAPCostFunctionBase:
public SingleValuedCostFunction
{
public:
/** Standard class typedefs. */
typedef ShapePriorMAPCostFunctionBase Self;
typedef SingleValuedCostFunction Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Run-time type information (and related methods). */
itkTypeMacro(ShapePriorMAPCostFunctionBase, SingleValuedCostFunction);
/** MeasureType typedef.
* It defines a type used to return the cost function value. */
typedef typename Superclass::MeasureType MeasureType;
/** DerivativeType typedef.
* It defines a type used to return the cost function derivative. */
typedef typename Superclass::DerivativeType DerivativeType;
/** ParametersType typedef.
* It defines a position in the optimization search space. */
typedef typename Superclass::ParametersType ParametersType;
/** Type of the feature image representing the edge potential map. */
typedef TFeatureImage FeatureImageType;
typedef typename FeatureImageType::ConstPointer FeatureImagePointer;
/** Dimension constant. */
itkStaticConstMacro(ImageDimension, unsigned int, TFeatureImage::ImageDimension);
/** Type of pixel used to represent the level set. */
typedef TOutputPixel PixelType;
/** Type of node used to represent the active region around the zero set. */
typedef LevelSetNode< PixelType, itkGetStaticConstMacro(ImageDimension) > NodeType;
/** Type of container used to store the level set nodes. */
typedef VectorContainer< unsigned int, NodeType > NodeContainerType;
typedef typename NodeContainerType::ConstPointer NodeContainerPointer;
/** Type of the shape signed distance function. */
typedef ShapeSignedDistanceFunction< double,
itkGetStaticConstMacro(ImageDimension) > ShapeFunctionType;
typedef typename ShapeFunctionType::Pointer ShapeFunctionPointer;
/** Set/Get the shape distance function. */
itkSetObjectMacro(ShapeFunction, ShapeFunctionType);
itkGetModifiableObjectMacro(ShapeFunction, ShapeFunctionType);
/** Set/Get the active region. */
itkSetConstObjectMacro(ActiveRegion, NodeContainerType);
itkGetConstObjectMacro(ActiveRegion, NodeContainerType);
/** Set/Get the feature image. */
itkSetConstObjectMacro(FeatureImage, FeatureImageType);
itkGetConstObjectMacro(FeatureImage, FeatureImageType);
/** This method returns the value of the cost function corresponding
* to the specified parameters. */
virtual MeasureType GetValue(const ParametersType & parameters) const;
/** This method returns the derivative of the cost function corresponding
* to the specified parameters. */
virtual void GetDerivative(const ParametersType &, DerivativeType &) const
{ itkExceptionMacro(<< "This function is currently not supported."); }
/** Return the number of parameters. */
virtual unsigned int GetNumberOfParameters(void) const
{ return m_ShapeFunction->GetNumberOfParameters(); }
/** Compute the inside term component of the MAP cost function.
* Subclasses should override this function */
virtual MeasureType ComputeLogInsideTerm(const ParametersType &) const = 0;
/** Compute the gradient term component of the MAP cost function.
* Subclasses should override this function */
virtual MeasureType ComputeLogGradientTerm(const ParametersType &) const = 0;
/** Compute the shape prior component of the MAP cost function.
* Subclasses should override this function */
virtual MeasureType ComputeLogShapePriorTerm(const ParametersType &) const = 0;
/** Compute the pose prior component of the MAP cost function.
* Subclasses should override this function */
virtual MeasureType ComputeLogPosePriorTerm(const ParametersType &) const = 0;
/** Initialize the cost function by making sure that all the components
* are present. */
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.hxx"
#endif
#endif
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