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itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage > Class Template Reference
[Similarity Metrics of Registration MethodsThread Unsafe classes]

Computes the mutual information between two images to be registered using the methof of Mattes et al. More...

#include <itkMattesMutualInformationImageToImageMetric.h>

Inheritance diagram for itk::MattesMutualInformationImageToImageMetric:

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Collaboration diagram for itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >:

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List of all members.

Public Types

typedef MattesMutualInformationImageToImageMetric Self
typedef ImageToImageMetric<
TFixedImage, TMovingImage > 
Superclass
typedef SmartPointer< SelfPointer
typedef SmartPointer< const
Self
ConstPointer
typedef Superclass::TransformType TransformType
typedef Superclass::TransformPointer TransformPointer
typedef Superclass::TransformJacobianType TransformJacobianType
typedef Superclass::InterpolatorType InterpolatorType
typedef Superclass::MeasureType MeasureType
typedef Superclass::DerivativeType DerivativeType
typedef Superclass::ParametersType ParametersType
typedef Superclass::FixedImageType FixedImageType
typedef Superclass::MovingImageType MovingImageType
typedef Superclass::FixedImageConstPointer FixedImageConstPointer
typedef Superclass::MovingImageConstPointer MovingImageCosntPointer
typedef FixedImageType::IndexType FixedImageIndexType
typedef FixedImageIndexType::IndexValueType FixedImageIndexValueType
typedef MovingImageType::IndexType MovingImageIndexType
typedef TransformType::InputPointType FixedImagePointType
typedef TransformType::OutputPointType MovingImagePointType

Public Methods

virtual const char * GetClassName () const
 itkStaticConstMacro (MovingImageDimension, unsigned int, MovingImageType::ImageDimension)
void Initialize (void) throw ( ExceptionObject )
void GetDerivative (const ParametersType &parameters, DerivativeType &Derivative) const
MeasureType GetValue (const ParametersType &parameters) const
void GetValueAndDerivative (const ParametersType &parameters, MeasureType &Value, DerivativeType &Derivative) const
virtual void SetNumberOfSpatialSamples (unsigned long _arg)
virtual unsigned long GetNumberOfSpatialSamples ()
virtual void SetNumberOfHistogramBins (unsigned long _arg)
virtual unsigned long GetNumberOfHistogramBins ()

Static Public Methods

Pointer New ()

Protected Methods

 MattesMutualInformationImageToImageMetric ()
virtual ~MattesMutualInformationImageToImageMetric ()
void PrintSelf (std::ostream &os, Indent indent) const

Detailed Description

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

Computes the mutual information between two images to be registered using the methof of Mattes et al.

MattesMutualInformationImageToImageMetric computes the mutual information between a fixed and moving image to be registered.

This class is templated over the FixedImage type and the MovingImage type.

The fixed and moving images are set via methods SetFixedImage() and SetMovingImage(). This metric makes use of user specified Transform and Interpolator. The Transform is used to map points from the fixed image to the moving image domain. The Interpolator is used to evaluate the image intensity at user specified geometric points in the moving image. The Transform and Interpolator are set via methods SetTransform() and SetInterpolator().

If a BSplineInterpolationFunction is used, this class obtain image derivatives from the BSpline interpolator. Otherwise, image derivatives are computed using central differencing.

Warning:
This metric assumes that the moving image has already been connected to the interpolator outside of this class.
The method GetValue() computes of the mutual information while method GetValueAndDerivative() computes both the mutual information and its derivatives with respect to the transform parameters.

The calculations are based on the method of Mattes et al [1,2] where the probability density distribution are estimated using Parzen histograms. Since the fixed image PDF does not contribute to the derivatives, it does not need to be smooth. Hence, a zero order (box car) BSpline kernel is used for the fixed image intensity PDF. On the other hand, to ensure smoothness a third order BSpline kernel is used for the moving image intensity PDF.

On Initialize(), the FixedImage is uniformly sampled within the FixedImageRegion. The number of samples used can be set via SetNumberOfSpatialSamples(). Typically, the number of spatial samples used should increase with the image size.

During each call of GetValue(), GetDerivatives(), GetValueAndDerivatives(), marginal and joint intensity PDF's values are estimated at discrete position or bins. The number of bins used can be set via SetNumberOfHistogramBins(). To handle data with arbitray magnitude and dynamic range, the image intensity is scale such that any contribution to the histogram will fall into a valid bin.

One the PDF's have been contructed, the mutual information is obtained by doubling summing over the discrete PDF values.

Notes: 1. This class returns the negative mutual information value. 2. This class in not thread safe due the private data structures used to the store the sampled points and the marginal and joint pdfs.

References: [1] "Nonrigid multimodality image registration" D. Mattes, D. R. Haynor, H. Vesselle, T. Lewellen and W. Eubank Medical Imaging 2001: Image Processing, 2001, pp. 1609-1620. [2] "PET-CT Image Registration in the Chest Using Free-form Deformations" D. Mattes, D. R. Haynor, H. Vesselle, T. Lewellen and W. Eubank IEEE Transactions in Medical Imaging. To Appear. [3] "Optimization of Mutual Information for MultiResolution Image Registration" P. Thevenaz and M. Unser IEEE Transactions in Image Processing, 9(12) December 2000.

Definition at line 111 of file itkMattesMutualInformationImageToImageMetric.h.


Member Typedef Documentation

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

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

Definition at line 120 of file itkMattesMutualInformationImageToImageMetric.h.

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

Type of the derivative.

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

Definition at line 134 of file itkMattesMutualInformationImageToImageMetric.h.

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

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

Definition at line 138 of file itkMattesMutualInformationImageToImageMetric.h.

template<class TFixedImage, class TMovingImage>
typedef FixedImageType::IndexType itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::FixedImageIndexType
 

Index and Point typedef support.

Definition at line 142 of file itkMattesMutualInformationImageToImageMetric.h.

template<class TFixedImage, class TMovingImage>
typedef FixedImageIndexType::IndexValueType itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::FixedImageIndexValueType
 

Definition at line 143 of file itkMattesMutualInformationImageToImageMetric.h.

template<class TFixedImage, class TMovingImage>
typedef TransformType::InputPointType itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::FixedImagePointType
 

Definition at line 145 of file itkMattesMutualInformationImageToImageMetric.h.

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

Type of the fixed Image.

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

Definition at line 136 of file itkMattesMutualInformationImageToImageMetric.h.

template<class TFixedImage, class TMovingImage>
typedef Superclass::InterpolatorType itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::InterpolatorType
 

Type of the Interpolator Base class

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

Definition at line 132 of file itkMattesMutualInformationImageToImageMetric.h.

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

Type of the measure.

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

Definition at line 133 of file itkMattesMutualInformationImageToImageMetric.h.

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

Definition at line 139 of file itkMattesMutualInformationImageToImageMetric.h.

template<class TFixedImage, class TMovingImage>
typedef MovingImageType::IndexType itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::MovingImageIndexType
 

Definition at line 144 of file itkMattesMutualInformationImageToImageMetric.h.

template<class TFixedImage, class TMovingImage>
typedef TransformType::OutputPointType itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::MovingImagePointType
 

Definition at line 146 of file itkMattesMutualInformationImageToImageMetric.h.

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

Type of the moving Image.

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

Definition at line 137 of file itkMattesMutualInformationImageToImageMetric.h.

template<class TFixedImage, class TMovingImage>
typedef Superclass::ParametersType itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::ParametersType
 

Type of the parameters.

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

Definition at line 135 of file itkMattesMutualInformationImageToImageMetric.h.

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

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

Definition at line 119 of file itkMattesMutualInformationImageToImageMetric.h.

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

Standard class typedefs.

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

Definition at line 117 of file itkMattesMutualInformationImageToImageMetric.h.

template<class TFixedImage, class TMovingImage>
typedef ImageToImageMetric< TFixedImage, TMovingImage > itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::Superclass
 

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

Definition at line 118 of file itkMattesMutualInformationImageToImageMetric.h.

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

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

Definition at line 131 of file itkMattesMutualInformationImageToImageMetric.h.

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

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

Definition at line 130 of file itkMattesMutualInformationImageToImageMetric.h.

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

Types inherited from Superclass.

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

Definition at line 129 of file itkMattesMutualInformationImageToImageMetric.h.


Constructor & Destructor Documentation

template<class TFixedImage, class TMovingImage>
itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::MattesMutualInformationImageToImageMetric   [protected]
 

template<class TFixedImage, class TMovingImage>
virtual itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::~MattesMutualInformationImageToImageMetric   [inline, protected, virtual]
 

Definition at line 188 of file itkMattesMutualInformationImageToImageMetric.h.


Member Function Documentation

template<class TFixedImage, class TMovingImage>
virtual const char* itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::GetClassName   const [virtual]
 

Run-time type information (and related methods).

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

template<class TFixedImage, class TMovingImage>
void itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::GetDerivative const ParametersType   parameters,
DerivativeType   Derivative
const [virtual]
 

Get the derivatives of the match measure.

Implements itk::SingleValuedCostFunction.

template<class TFixedImage, class TMovingImage>
virtual unsigned long itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::GetNumberOfHistogramBins   [virtual]
 

Number of bins to used in the histogram. Typical value is 50.

template<class TFixedImage, class TMovingImage>
virtual unsigned long itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::GetNumberOfSpatialSamples   [virtual]
 

Number of spatial samples to used to compute metric

template<class TFixedImage, class TMovingImage>
MeasureType itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::GetValue const ParametersType   parameters const [virtual]
 

Get the value.

Implements itk::SingleValuedCostFunction.

template<class TFixedImage, class TMovingImage>
void itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::GetValueAndDerivative const ParametersType   parameters,
MeasureType   Value,
DerivativeType   Derivative
const [virtual]
 

Get the value and derivatives for single valued optimizers.

Reimplemented from itk::SingleValuedCostFunction.

template<class TFixedImage, class TMovingImage>
void itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::Initialize void    throw ( ExceptionObject ) [virtual]
 

Initialize the Metric by (1) making sure that all the components are present and plugged together correctly, (2) uniformly select NumberOfSpatialSamples within the FixedImageRegion, and (3) allocate memory for pdf data structures.

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

template<class TFixedImage, class TMovingImage>
itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::itkStaticConstMacro MovingImageDimension   ,
unsigned    int,
MovingImageType::ImageDimension   
 

The moving image dimension.

template<class TFixedImage, class TMovingImage>
Pointer itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::New   [static]
 

Method for creation through the object factory.

Reimplemented from itk::Object.

template<class TFixedImage, class TMovingImage>
void itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::PrintSelf std::ostream &    os,
Indent    indent
const [protected, virtual]
 

Methods invoked by Print() to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from itk::ImageToImageMetric< TFixedImage, TMovingImage >.

template<class TFixedImage, class TMovingImage>
virtual void itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::SetNumberOfHistogramBins unsigned long    _arg [virtual]
 

Number of bins to used in the histogram. Typical value is 50.

template<class TFixedImage, class TMovingImage>
virtual void itk::MattesMutualInformationImageToImageMetric< TFixedImage, TMovingImage >::SetNumberOfSpatialSamples unsigned long    _arg [virtual]
 

Number of spatial samples to used to compute metric


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