#include <itkImpactImageToImageMetric.h>

Detailed Description

template<typename TFixedImage, typename TMovingImage>
struct itk::ImpactImageToImageMetric< TFixedImage, TMovingImage >::LossPerThreadStruct

Thread-local structure for accumulating loss values and gradients for each layer.

Protected Typedefs

This structure encapsulates one loss object per output layer (defined by the layersMask), enabling multi-layer loss computation and weighted aggregation. It allows efficient computation of the final loss and its gradients by keeping track of the contributions from each layer.

This structure is designed to be used in a multi-threaded environment, where each thread maintains its own instance to store intermediate results, ensuring thread-safety during parallel loss and gradient computations.

Definition at line 273 of file itkImpactImageToImageMetric.h.

Public Member Functions
DerivativeType	GetDerivative ()
double	GetValue ()
void	init (std::vector< std::string > distanceName, std::vector< float > layersWeight, unsigned int seed)
LossPerThreadStruct &	operator+= (const LossPerThreadStruct &other)
void	reset ()
void	setNumberOfParameters (int numberOfParameters)

Public Attributes
std::vector< float >	m_LayersWeight
std::vector< std::unique_ptr< ImpactLoss::Loss > >	m_Losses
int	m_NumberOfParameters
SizeValueType	m_NumberOfPixelsCounted
std::mt19937	m_RandomGenerator

Member Function Documentation

◆ GetDerivative()

template<typename TFixedImage, typename TMovingImage>

DerivativeType itk::ImpactImageToImageMetric< TFixedImage, TMovingImage >::LossPerThreadStruct::GetDerivative ( )

inline

Definition at line 331 of file itkImpactImageToImageMetric.h.

◆ GetValue()

template<typename TFixedImage, typename TMovingImage>

double itk::ImpactImageToImageMetric< TFixedImage, TMovingImage >::LossPerThreadStruct::GetValue ( )

inline

Definition at line 320 of file itkImpactImageToImageMetric.h.

◆ init()

template<typename TFixedImage, typename TMovingImage>

void itk::ImpactImageToImageMetric< TFixedImage, TMovingImage >::LossPerThreadStruct::init	(	std::vector< std::string >	distanceName,
		std::vector< float >	layersWeight,
		unsigned int	seed )

inline

Definition at line 282 of file itkImpactImageToImageMetric.h.

◆ operator+=()

template<typename TFixedImage, typename TMovingImage>

LossPerThreadStruct & itk::ImpactImageToImageMetric< TFixedImage, TMovingImage >::LossPerThreadStruct::operator+= ( const LossPerThreadStruct & other )