rtk::LagCorrectionImageFilter< TImage, VModelOrder > Class Template Reference

#include <rtkLagCorrectionImageFilter.h>

Inheritance diagram for rtk::LagCorrectionImageFilter< TImage, VModelOrder >:

Collaboration diagram for rtk::LagCorrectionImageFilter< TImage, VModelOrder >:

Public Types
using	ConstPointer = itk::SmartPointer< const Self >
using	FloatVectorType = typename std::vector< float >
using	ImageRegionType = typename TImage::RegionType
using	ImageSizeType = typename TImage::SizeType
using	IndexType = typename TImage::IndexType
using	OutputImageRegionType = typename TImage::RegionType
using	PixelType = typename TImage::PixelType
using	Pointer = itk::SmartPointer< Self >
using	Self = LagCorrectionImageFilter
using	Superclass = itk::InPlaceImageFilter< TImage, TImage >
using	VectorType = typename itk::Vector< float, VModelOrder >

Public Member Functions
virtual ::itk::LightObject::Pointer	CreateAnother () const
virtual const char *	GetNameOfClass () const
virtual VectorType	GetA ()
virtual VectorType	GetB ()
virtual void	SetCoefficients (const VectorType A, const VectorType B)

Static Public Member Functions
static Pointer	New ()

Protected Member Functions
void	GenerateInputRequestedRegion () override
void	GenerateOutputInformation () override
	LagCorrectionImageFilter ()
void	ThreadedGenerateData (const ImageRegionType &thRegion, itk::ThreadIdType threadId) override
	~LagCorrectionImageFilter () override=default
unsigned int	SplitRequestedRegion (unsigned int i, unsigned int num, OutputImageRegionType &splitRegion) override
virtual int	SplitRequestedRegion (int i, int num, OutputImageRegionType &splitRegion)

Protected Attributes
VectorType	m_A
VectorType	m_B
VectorType	m_ExpmA
FloatVectorType	m_S
float	m_SumB

Private Attributes
bool	m_NewParamJustReceived
IndexType	m_StartIdx

Detailed Description

template<typename TImage, unsigned VModelOrder>
class rtk::LagCorrectionImageFilter< TImage, VModelOrder >

Classical Linear Time Invariant Lag correction.

Recursive correction algorithm for detector decay characteristics. Based on [Hsieh, Proceedings of SPIE, 2000]

The IRF (Impulse Response Function) is given by: \(h(k)=b_0 \delta(k) + \sum_{n=1}^N b_n e^{-a_n k}\) where \(k\) is the discrete time, \(N\) is the model order (number of exponentials), \(\delta(k)\) is the impulse function and the \({a_n, b_n}_{n=1:N}\) parameters are respectively the exponential rates and lag coefficients to be provided. The sum of all $b_n$ must be normalized such that h(0) equals 1.

The parameters are typically estimated from either RSRF (Rising Step RF) or FSRF (Falling Step RF) response functions.

Test:

rtklagcorrectiontest.cxx

Author

Sebastien Brousmiche

Definition at line 55 of file rtkLagCorrectionImageFilter.h.

Member Typedef Documentation

ConstPointer

template<typename TImage , unsigned VModelOrder>

using rtk::LagCorrectionImageFilter< TImage, VModelOrder >::ConstPointer = itk::SmartPointer<const Self>

Definition at line 64 of file rtkLagCorrectionImageFilter.h.

FloatVectorType

template<typename TImage , unsigned VModelOrder>

using rtk::LagCorrectionImageFilter< TImage, VModelOrder >::FloatVectorType = typename std::vector<float>

Definition at line 82 of file rtkLagCorrectionImageFilter.h.

ImageRegionType

template<typename TImage , unsigned VModelOrder>

using rtk::LagCorrectionImageFilter< TImage, VModelOrder >::ImageRegionType = typename TImage::RegionType

Definition at line 77 of file rtkLagCorrectionImageFilter.h.

ImageSizeType

template<typename TImage , unsigned VModelOrder>

using rtk::LagCorrectionImageFilter< TImage, VModelOrder >::ImageSizeType = typename TImage::SizeType

Definition at line 78 of file rtkLagCorrectionImageFilter.h.

IndexType

template<typename TImage , unsigned VModelOrder>

using rtk::LagCorrectionImageFilter< TImage, VModelOrder >::IndexType = typename TImage::IndexType

Definition at line 80 of file rtkLagCorrectionImageFilter.h.

OutputImageRegionType

template<typename TImage , unsigned VModelOrder>

using rtk::LagCorrectionImageFilter< TImage, VModelOrder >::OutputImageRegionType = typename TImage::RegionType

Definition at line 83 of file rtkLagCorrectionImageFilter.h.

PixelType

template<typename TImage , unsigned VModelOrder>

using rtk::LagCorrectionImageFilter< TImage, VModelOrder >::PixelType = typename TImage::PixelType

Definition at line 79 of file rtkLagCorrectionImageFilter.h.

Pointer

template<typename TImage , unsigned VModelOrder>

using rtk::LagCorrectionImageFilter< TImage, VModelOrder >::Pointer = itk::SmartPointer<Self>

Definition at line 63 of file rtkLagCorrectionImageFilter.h.

Self

template<typename TImage , unsigned VModelOrder>

using rtk::LagCorrectionImageFilter< TImage, VModelOrder >::Self = LagCorrectionImageFilter

Standard class type alias.

Definition at line 61 of file rtkLagCorrectionImageFilter.h.

Superclass

template<typename TImage , unsigned VModelOrder>

using rtk::LagCorrectionImageFilter< TImage, VModelOrder >::Superclass = itk::InPlaceImageFilter<TImage, TImage>

Definition at line 62 of file rtkLagCorrectionImageFilter.h.

VectorType

template<typename TImage , unsigned VModelOrder>

using rtk::LagCorrectionImageFilter< TImage, VModelOrder >::VectorType = typename itk::Vector<float, VModelOrder>

Definition at line 81 of file rtkLagCorrectionImageFilter.h.

Constructor & Destructor Documentation

LagCorrectionImageFilter()

template<typename TImage , unsigned VModelOrder>

rtk::LagCorrectionImageFilter< TImage, VModelOrder >::LagCorrectionImageFilter ( )

protected

~LagCorrectionImageFilter()

template<typename TImage , unsigned VModelOrder>

rtk::LagCorrectionImageFilter< TImage, VModelOrder >::~LagCorrectionImageFilter ( )

overrideprotecteddefault

Member Function Documentation

CreateAnother()

template<typename TImage , unsigned VModelOrder>

virtual::itk::LightObject::Pointer rtk::LagCorrectionImageFilter< TImage, VModelOrder >::CreateAnother ( ) const

virtual

Reimplemented from itk::Object.

GenerateInputRequestedRegion()

template<typename TImage , unsigned VModelOrder>

void rtk::LagCorrectionImageFilter< TImage, VModelOrder >::GenerateInputRequestedRegion ( )

overrideprotectedvirtual

Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >.

GenerateOutputInformation()

template<typename TImage , unsigned VModelOrder>

void rtk::LagCorrectionImageFilter< TImage, VModelOrder >::GenerateOutputInformation ( )

overrideprotectedvirtual

Reimplemented from itk::ProcessObject.

GetA()

template<typename TImage , unsigned VModelOrder>

virtual VectorType rtk::LagCorrectionImageFilter< TImage, VModelOrder >::GetA ( )

virtual

Get / Set the model parameters A and B

GetB()

template<typename TImage , unsigned VModelOrder>

virtual VectorType rtk::LagCorrectionImageFilter< TImage, VModelOrder >::GetB ( )

virtual

Get / Set the model parameters A and B

GetNameOfClass()

template<typename TImage , unsigned VModelOrder>

virtual const char* rtk::LagCorrectionImageFilter< TImage, VModelOrder >::GetNameOfClass ( ) const

virtual

Run-time type information (and related methods).

Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >.

New()

template<typename TImage , unsigned VModelOrder>

static Pointer rtk::LagCorrectionImageFilter< TImage, VModelOrder >::New ( )

static

Method for creation through the object factory.

SetCoefficients()

template<typename TImage , unsigned VModelOrder>

virtual void rtk::LagCorrectionImageFilter< TImage, VModelOrder >::SetCoefficients ( const VectorType  A, const VectorType  B  )

inlinevirtual

Get / Set the model parameters A and B

Definition at line 89 of file rtkLagCorrectionImageFilter.h.

SplitRequestedRegion() [1/2]

template<typename TImage , unsigned VModelOrder>

unsigned int rtk::LagCorrectionImageFilter< TImage, VModelOrder >::SplitRequestedRegion ( unsigned int  i, unsigned int  num, OutputImageRegionType &  splitRegion  )

overrideprotectedvirtual

The correction is applied along the third (stack) dimension. Therefore, we must avoid splitting along the stack. The split is done along the second dimension.

Reimplemented from itk::ImageSource< TOutputImage >.

SplitRequestedRegion() [2/2]

template<typename TImage , unsigned VModelOrder>

virtual int rtk::LagCorrectionImageFilter< TImage, VModelOrder >::SplitRequestedRegion ( int  i, int  num, OutputImageRegionType &  splitRegion  )

protectedvirtual

The correction is applied along the third (stack) dimension. Therefore, we must avoid splitting along the stack. The split is done along the second dimension.

ThreadedGenerateData()

template<typename TImage , unsigned VModelOrder>

void rtk::LagCorrectionImageFilter< TImage, VModelOrder >::ThreadedGenerateData ( const ImageRegionType &  thRegion, itk::ThreadIdType  threadId  )

overrideprotected

Member Data Documentation

m_A

template<typename TImage , unsigned VModelOrder>

VectorType rtk::LagCorrectionImageFilter< TImage, VModelOrder >::m_A

protected

Definition at line 126 of file rtkLagCorrectionImageFilter.h.

m_B

template<typename TImage , unsigned VModelOrder>

VectorType rtk::LagCorrectionImageFilter< TImage, VModelOrder >::m_B

protected

Definition at line 127 of file rtkLagCorrectionImageFilter.h.

m_ExpmA

template<typename TImage , unsigned VModelOrder>

VectorType rtk::LagCorrectionImageFilter< TImage, VModelOrder >::m_ExpmA

protected

Definition at line 128 of file rtkLagCorrectionImageFilter.h.

m_NewParamJustReceived

template<typename TImage , unsigned VModelOrder>

bool rtk::LagCorrectionImageFilter< TImage, VModelOrder >::m_NewParamJustReceived

private

Definition at line 135 of file rtkLagCorrectionImageFilter.h.

m_S

template<typename TImage , unsigned VModelOrder>

FloatVectorType rtk::LagCorrectionImageFilter< TImage, VModelOrder >::m_S

protected

Definition at line 132 of file rtkLagCorrectionImageFilter.h.

m_StartIdx

template<typename TImage , unsigned VModelOrder>

IndexType rtk::LagCorrectionImageFilter< TImage, VModelOrder >::m_StartIdx

private

Definition at line 136 of file rtkLagCorrectionImageFilter.h.

m_SumB

template<typename TImage , unsigned VModelOrder>

float rtk::LagCorrectionImageFilter< TImage, VModelOrder >::m_SumB

protected

Definition at line 129 of file rtkLagCorrectionImageFilter.h.

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

• rtkLagCorrectionImageFilter.h