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itkPointSetToPointSetRegistrationMethod.h
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itkPointSetToPointSetRegistrationMethod.h
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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkPointSetToPointSetRegistrationMethod.h
Language: C++
Date: $Date$
Version: $Revision$
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 __itkPointSetToPointSetRegistrationMethod_h
#define __itkPointSetToPointSetRegistrationMethod_h
#include "itkProcessObject.h"
#include "itkPointSetToPointSetMetric.h"
#include "itkMultipleValuedNonLinearOptimizer.h"
#include "itkDataObjectDecorator.h"
namespace itk
{
/** \class PointSetToPointSetRegistrationMethod
* \brief Base class for PointSet to PointSet Registration Methods
*
* This Class define the generic interface for a registration method.
*
* This class is templated over the type of the PointSet and the PointSet to be
* registered. A generic Transform is used by this class. That allows to select
* at run time the particular type of transformation that is to be applied for
* registering the PointSets.
*
* This method use a generic Metric in order to compare the PointSet and the
* PointSet. The final goal of the registration method is to find the set of
* parameters of the Transformation that optimizes the metric.
*
* The registration method also support a generic optimizer that can be
* selected at run-time. The only restriction for the optimizer is that it
* should be able to operate in single-valued cost functions given that the
* metrics used to compare PointSet with PointSets provide a single value as
* output.
*
* The terms : FixedPointSet and MovingPointSet are used in this class to indicate
* that the PointSet is being mapped by the transform.
*
* This class uses the coordinate system of the Fixed PointSet as a reference
* and searchs for a Transform that will map points from the space of the Fixed
* PointSet to the space of the Moving PointSet.
*
* For doing so, a Metric will be continously applied to compare the Fixed
* PointSet with the Transformed Moving PointSet. This process also requires to
* interpolate values from the Moving PointSet.
*
* \ingroup RegistrationFilters
*/
template <typename TFixedPointSet, typename TMovingPointSet>
class ITK_EXPORT PointSetToPointSetRegistrationMethod : public ProcessObject
{
public:
/** Standard class typedefs. */
typedef PointSetToPointSetRegistrationMethod Self;
typedef ProcessObject Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(PointSetToPointSetRegistrationMethod, ProcessObject);
/** Type of the Fixed PointSet. */
typedef TFixedPointSet FixedPointSetType;
typedef typename FixedPointSetType::ConstPointer FixedPointSetConstPointer;
/** Type of the Moving PointSet. */
typedef TMovingPointSet MovingPointSetType;
typedef typename MovingPointSetType::ConstPointer MovingPointSetConstPointer;
/** Type of the metric. */
typedef PointSetToPointSetMetric< FixedPointSetType,
MovingPointSetType > MetricType;
typedef typename MetricType::Pointer MetricPointer;
/** Type of the Transform . */
typedef typename MetricType::TransformType TransformType;
typedef typename TransformType::Pointer TransformPointer;
/** Type for the output: Using Decorator pattern for enabling
* the Transform to be passed in the data pipeline */
typedef DataObjectDecorator< TransformType > TransformOutputType;
typedef typename TransformOutputType::Pointer TransformOutputPointer;
typedef typename TransformOutputType::ConstPointer TransformOutputConstPointer;
/** Type of the optimizer. */
typedef MultipleValuedNonLinearOptimizer OptimizerType;
/** Type of the Transformation parameters This is the same type used to
* represent the search space of the optimization algorithm */
typedef typename MetricType::TransformParametersType ParametersType;
/** Smart Pointer type to a DataObject. */
typedef typename DataObject::Pointer DataObjectPointer;
/** Method that initiates the registration. */
void StartRegistration(void);
/** Set/Get the Fixed PointSet. */
itkSetConstObjectMacro( FixedPointSet, FixedPointSetType );
itkGetConstObjectMacro( FixedPointSet, FixedPointSetType );
/** Set/Get the Moving PointSet. */
itkSetConstObjectMacro( MovingPointSet, MovingPointSetType );
itkGetConstObjectMacro( MovingPointSet, MovingPointSetType );
/** Set/Get the Optimizer. */
itkSetObjectMacro( Optimizer, OptimizerType );
itkGetObjectMacro( Optimizer, OptimizerType );
/** Set/Get the Metric. */
itkSetObjectMacro( Metric, MetricType );
itkGetObjectMacro( Metric, MetricType );
/** Set/Get the Transfrom. */
itkSetObjectMacro( Transform, TransformType );
itkGetObjectMacro( Transform, TransformType );
/** Set/Get the initial transformation parameters. */
virtual void SetInitialTransformParameters( const ParametersType & param );
itkGetConstReferenceMacro( InitialTransformParameters, ParametersType );
/** Get the last transformation parameters visited by
* the optimizer. */
itkGetConstReferenceMacro( LastTransformParameters, ParametersType );
/** Initialize by setting the interconnects between the components. */
void Initialize() throw (ExceptionObject);
/** Returns the transform resulting from the registration process */
const TransformOutputType * GetOutput() const;
/** Make a DataObject of the correct type to be used as the specified
* output. */
virtual DataObjectPointer MakeOutput(unsigned int idx);
/** Method to return the latest modified time of this object or
* any of its cached ivars */
unsigned long GetMTime() const;
protected:
PointSetToPointSetRegistrationMethod();
virtual ~PointSetToPointSetRegistrationMethod() {};
void PrintSelf(std::ostream& os, Indent indent) const;
/** Method invoked by the pipeline in order to trigger the computation of
* the registration. */
void GenerateData ();
private:
PointSetToPointSetRegistrationMethod(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
MetricPointer m_Metric;
OptimizerType::Pointer m_Optimizer;
MovingPointSetConstPointer m_MovingPointSet;
FixedPointSetConstPointer m_FixedPointSet;
TransformPointer m_Transform;
ParametersType m_InitialTransformParameters;
ParametersType m_LastTransformParameters;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkPointSetToPointSetRegistrationMethod.txx"
#endif
#endif