N4 bias field correction algorithm contributed to ITK by Nicholas J. Tustison and James C. Gee.
program runs the ITK N4BiasFieldCorrectionImageFilter on an image to correct nonuniformity commonly associated with MR images. The algorithm assumes a simple parametric model (Gaussian) for the bias field and does not require tissue class segmentation. References: J.G. Sled, A.P. Zijdenbos and A.C. Evans. "A Nonparametric Method for Automatic Correction of Intensity Nonuniformity in Data" IEEE Transactions on Medical Imaging, Vol 17, No 1. Feb. More...

Inheritance diagram for itk::UCLN4BiasFieldCorrectionFilter< TInputImage, TOutputImage >:

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Collaboration diagram for itk::UCLN4BiasFieldCorrectionFilter< TInputImage, TOutputImage >:

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Public Types
typedef UCLN4BiasFieldCorrectionFilter	Self

typedef ImageToImageFilter < TInputImage, TOutputImage >	Superclass

typedef SmartPointer< Self >	Pointer

typedef SmartPointer< const Self >	ConstPointer

typedef Superclass::InputImageConstPointer	InputImageConstPointer

typedef Superclass::InputImagePointer	InputImagePointer

typedef Superclass::InputImageType	InputImageType

typedef Superclass::OutputImagePointer	OutputImagePointer

typedef Superclass::OutputImageType	OutputImageType

typedef unsigned char	MaskPixelType

typedef itk::Image < MaskPixelType, ImageDimension >	MaskImageType

typedef MaskImageType::Pointer	MaskImagePointer

Public Member Functions
virtual const char *	GetClassName () const

	itkStaticConstMacro (ImageDimension, unsigned int, TInputImage::ImageDimension)

	itkStaticConstMacro (OutputImageDimension, unsigned int, TOutputImage::ImageDimension)

virtual void	SetSubsampling (float _arg)

virtual void	SetSplineOrder (float _arg)

virtual void	SetNumberOfHistogramBins (float _arg)

virtual void	SetWeinerFilterNoise (float _arg)

virtual void	SetBiasFieldFullWidthAtHalfMaximum (float _arg)

virtual void	SetMaximumNumberOfIterations (float _arg)

virtual void	SetConvergenceThreshold (float _arg)

virtual void	SetNumberOfFittingLevels (float _arg)

virtual void	SetNumberOfControlPoints (float _arg)

virtual void	SetMask (MaskImageType *_arg)
	Set an optional mask image. More...

virtual MaskImageType *	GetMask ()
	Get the computed mask image. More...

virtual InputImageType *	GetBiasField ()
	Get the computed bias field. More...

Static Public Member Functions
static Pointer	New ()

Protected Member Functions
	UCLN4BiasFieldCorrectionFilter ()

	~UCLN4BiasFieldCorrectionFilter ()

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

void	GenerateData ()

Protected Attributes
float	m_Subsampling

float	m_SplineOrder

float	m_NumberOfHistogramBins

float	m_WeinerFilterNoise

float	m_BiasFieldFullWidthAtHalfMaximum

float	m_MaximumNumberOfIterations

float	m_ConvergenceThreshold

float	m_NumberOfFittingLevels

float	m_NumberOfControlPoints

MaskImagePointer	m_Mask

InputImagePointer	m_BiasField

Detailed Description

template<class TInputImage, class TOutputImage>
class itk::UCLN4BiasFieldCorrectionFilter< TInputImage, TOutputImage >

N4 bias field correction algorithm contributed to ITK by Nicholas J. Tustison and James C. Gee.
program runs the ITK N4BiasFieldCorrectionImageFilter on an image to correct nonuniformity commonly associated with MR images. The algorithm assumes a simple parametric model (Gaussian) for the bias field and does not require tissue class segmentation. References: J.G. Sled, A.P. Zijdenbos and A.C. Evans. "A Nonparametric Method for Automatic Correction of Intensity Nonuniformity in Data" IEEE Transactions on Medical Imaging, Vol 17, No 1. Feb.

N.J. Tustison, B.B. Avants, P.A. Cook, Y. Zheng, A. Egan, P.A. Yushkevich, and J.C. Gee. "N4ITK: Improved N3 Bias Correction" IEEE Transactions on Medical Imaging, 29(6):1310-1320, June 2010.