itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage > Class Template Reference
[Similarity Metrics of Registration Methods]

Computes normalized mutual information between two images to be registered using the histograms of the intensities in the images. More...

#include <itkNormalizedMutualInformationHistogramImageToImageMetric.h>

Inheritance diagram for itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >:

[legend]Collaboration diagram for itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >:

[legend]List of all members.

Public Types
typedef NormalizedMutualInformationHistogramImageToImageMetric	Self
typedef HistogramImageToImageMetric< TFixedImage, TMovingImage >	Superclass
typedef SmartPointer< Self >	Pointer
typedef SmartPointer< const Self >	ConstPointer
typedef Superclass::RealType	RealType
typedef Superclass::TransformType	TransformType
typedef Superclass::TransformPointer	TransformPointer
typedef Superclass::TransformParametersType	TransformParametersType
typedef Superclass::TransformJacobianType	TransformJacobianType
typedef Superclass::GradientPixelType	GradientPixelType
typedef Superclass::MeasureType	MeasureType
typedef Superclass::DerivativeType	DerivativeType
typedef Superclass::FixedImageType	FixedImageType
typedef Superclass::MovingImageType	MovingImageType
typedef Superclass::FixedImageConstPointer	FixedImageConstPointer
typedef Superclass::MovingImageConstPointer	MovingImageConstPointer
typedef Superclass::HistogramType	HistogramType
typedef HistogramType::FrequencyType	HistogramFrequencyType
typedef HistogramType::Iterator	HistogramIteratorType
typedef HistogramType::MeasurementVectorType	HistogramMeasurementVectorType
Public Member Functions
virtual const char *	GetNameOfClass () const
Static Public Member Functions
Pointer	New ()
Protected Member Functions
virtual MeasureType	EvaluateMeasure (HistogramType &histogram) const
	NormalizedMutualInformationHistogramImageToImageMetric ()
virtual	~NormalizedMutualInformationHistogramImageToImageMetric ()

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Detailed Description

template<class TFixedImage, class TMovingImage>
class itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >

Computes normalized mutual information between two images to be registered using the histograms of the intensities in the images.

The type of Normalize Mutual Information implemented in this class is given by the equation

Where $ H(A) $ is the entropy of image $ A $, $ H(B) $ is the entropy of image $ B $, and $ H(A,B) $ is the joing entropy of images $ A $ and $ B $.

Details of this implementation can be found in the book

"Medical Image Registration" by Hajnal, Hill and Hawkes.

The book is available online at

http://www-ipg.umds.ac.uk/d.hill/hhh/

The implementation of this class corresponds to equation (30) in Chapter 3 of this book. Note that by slightly changing this class it will be trivial to compute the Normalized Mutual Information measures defined in equations (28) and (29) of the same book.

This class is templated over the type of the fixed and moving images to be compared.

Definition at line 56 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

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Member Typedef Documentation

template<class TFixedImage, class TMovingImage> typedef SmartPointer<const Self> itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::ConstPointer

Reimplemented from itk::HistogramImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 64 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::DerivativeType itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::DerivativeType

Type of the derivative. Reimplemented from itk::HistogramImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 83 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::FixedImageConstPointer itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::FixedImageConstPointer

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 86 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::FixedImageType itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::FixedImageType

Type of the fixed Image. Reimplemented from itk::HistogramImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 84 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::GradientPixelType itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::GradientPixelType

Gaussian filter to compute the gradient of the Moving Image Reimplemented from itk::HistogramImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 80 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef HistogramType::FrequencyType itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::HistogramFrequencyType

Definition at line 91 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef HistogramType::Iterator itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::HistogramIteratorType

Definition at line 92 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef HistogramType::MeasurementVectorType itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::HistogramMeasurementVectorType

Definition at line 94 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::HistogramType itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::HistogramType

Typedefs for histogram. This should have been defined as Histogram<RealType,2> but a bug in VC++7 produced an internal compiler error with such declaration. Reimplemented from itk::HistogramImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 90 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::MeasureType itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::MeasureType

Type of the measure. Reimplemented from itk::HistogramImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 82 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::MovingImageConstPointer itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::MovingImageConstPointer

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 88 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::MovingImageType itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::MovingImageType

Type of the moving Image. Reimplemented from itk::HistogramImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 85 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef SmartPointer<Self> itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::Pointer

Reimplemented from itk::HistogramImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 63 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::RealType itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::RealType

Types transferred from the base class Reimplemented from itk::HistogramImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 74 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef NormalizedMutualInformationHistogramImageToImageMetric itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::Self

Standard class typedefs. Reimplemented from itk::HistogramImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 61 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef HistogramImageToImageMetric<TFixedImage, TMovingImage> itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::Superclass

Reimplemented from itk::HistogramImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 62 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::TransformJacobianType itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::TransformJacobianType

Reimplemented from itk::HistogramImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 79 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::TransformParametersType itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::TransformParametersType

Reimplemented from itk::HistogramImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 78 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::TransformPointer itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::TransformPointer

Reimplemented from itk::HistogramImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 76 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> typedef Superclass::TransformType itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::TransformType

Type of the Transform Base class Reimplemented from itk::HistogramImageToImageMetric< TFixedImage, TMovingImage >. Definition at line 75 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

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Constructor & Destructor Documentation

template<class TFixedImage, class TMovingImage> itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::NormalizedMutualInformationHistogramImageToImageMetric (   )  [inline, protected]

Constructor is protected to ensure that New() function is used to create instances. Definition at line 99 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

template<class TFixedImage, class TMovingImage> virtual itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::~NormalizedMutualInformationHistogramImageToImageMetric (   )  [inline, protected, virtual]

Constructor is protected to ensure that New() function is used to create instances. Definition at line 100 of file itkNormalizedMutualInformationHistogramImageToImageMetric.h.

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Member Function Documentation

template<class TFixedImage, class TMovingImage> virtual MeasureType itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::EvaluateMeasure (  HistogramType &  histogram  )  const [protected, virtual]

Evaluates the normalized mutual information from the histogram. Implements itk::HistogramImageToImageMetric< TFixedImage, TMovingImage >.

template<class TFixedImage, class TMovingImage> virtual const char* itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::GetNameOfClass (   )  const [virtual]

Run-time type information (and related methods). Reimplemented from itk::HistogramImageToImageMetric< TFixedImage, TMovingImage >.

template<class TFixedImage, class TMovingImage> Pointer itk::NormalizedMutualInformationHistogramImageToImageMetric< TFixedImage, TMovingImage >::New (   )  [static]

Method for creation through the object factory. Reimplemented from itk::Object.

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The documentation for this class was generated from the following file:

• itkNormalizedMutualInformationHistogramImageToImageMetric.h

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