zxhMetricFFD2Base Class Reference

FFD GetValue: DO NOT call PreComputeTransformField DO NOT assume this anymore: ComputeConstanceForFFDGradient will resample testimage using m_afSamplingPhysical can do line-search in optimization, however line-search time consuming, NOT used not SIEMI. More...

#include <zxhMetricFFD2Base.h>

Inheritance diagram for zxhMetricFFD2Base:

List of all members.

Public Member Functions
	zxhMetricFFD2Base (void)
	constructor
	~zxhMetricFFD2Base (void)
virtual std::string	GetMetricType ()
virtual zxhMetricFFDBase *	Clone (zxhMetricFFDBase *&pRet)
virtual int	GetValueByFFDGrid (zxhlfloat &fValue, int aiCtrPnt[ImageDimensionMax])
virtual int	ComputeConstanceForFFDGradient ()
virtual int	GetDiffByFFDGrid (float *afPD, zxhTransformFFDBase *pFFDGrid, int *aiCtrPnt, zxhTransformFFDBase *pDifferential)
virtual int	GetDerivativeFFDGrid (float *afPD, zxhTransformFFDBase *pFFDGrid, int *aiCtrPnt, zxhTransformFFDBase *pDifferential)
Protected Member Functions
virtual bool	EvaluateAllPixelOnTargetForceForMetric ()=0
virtual bool	ComputeAllControlPointDerivativeBySumLocalEstimation ()
virtual void	InitMetricFFDConstant ()
	constant variables for FFD related
Protected Attributes
zxhImageDataT< float >	m_imgVoxelForceConst [ImageDimensionMax]

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Detailed Description

FFD GetValue: DO NOT call PreComputeTransformField DO NOT assume this anymore: ComputeConstanceForFFDGradient will resample testimage using m_afSamplingPhysical can do line-search in optimization, however line-search time consuming, NOT used not SIEMI.

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Constructor & Destructor Documentation

zxhMetricFFD2Base::~zxhMetricFFD2Base

(

void

)

Returns:

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Member Function Documentation

zxhMetricFFDBase * zxhMetricFFD2Base::Clone

(

zxhMetricFFDBase *&

pRet

)

[virtual]

Returns:

Reimplemented from zxhMetricFFDBase.

bool zxhMetricFFD2Base::ComputeAllControlPointDerivativeBySumLocalEstimation

(

)

[protected, virtual]

sum m_imgVoxelForceConst and add to -> m_pCtrPntDerivativeConst, DO NOT need the control points coordinate to be on a voxel in order to use the bspline convolution quickly here we only use "coCenter = zxh::round(World2coCenter[0])" to find the round points

virtual int zxhMetricFFD2Base::ComputeConstanceForFFDGradient

(

)

[inline, virtual]

Call 1. EvaluateOnPixelOnTargetForce for EvaluateAllPixelOnTargetForceForMetric 2. InitMetricFFDConstant 3. ComputeAllControlPointDerivativeBySumLocalEstimation 4. AddAllCtrPntOnTargetForceForBendingEnergy adding the bending energy force to -> m_pCtrPntDerivativeConst

Implements zxhMetricFFDBase.

Reimplemented in zxhMetricCCFFD2, zxhMetricCCFFD2ConstDiscretePath, zxhMetricMIFFD2, zxhMetricMIFFD2ConstDiscretePath, and zxhMetricMIFFD2MultiImage.

virtual bool zxhMetricFFD2Base::EvaluateAllPixelOnTargetForceForMetric

(

)

[protected, pure virtual]

1. call EvaluateOnPixelSource2TargetForce to compute each voxel and minus the force direction 2. add weight info from m_pWeightModelTest(Ref)

Implemented in zxhMetricCCFFD2, and zxhMetricMIFFD2.

virtual int zxhMetricFFD2Base::GetDiffByFFDGrid	(	float *	afPD,
		zxhTransformFFDBase *	pFFDGrid,
		int *	aiCtrPnt,
		zxhTransformFFDBase *	pDifferential
	)		[inline, virtual]

Diff = (forward-backward)/2steplength ( 2009-10-01) should compute the constant (call ComputeConstanceForFFDGradient) before calling this already including penalty terms (AddFiniteDiffPenaltyByFFDGrid)

for each dimension

2 forward

3 backward 2 steps

4 return to current position

compute the value

Reimplemented from zxhMetricFFDBase.

virtual int zxhMetricFFD2Base::GetValueByFFDGrid	(	zxhlfloat &	fValue,
		int	aiCtrPnt[ImageDimensionMax]
	)		[inline, virtual]

for GetDiffByFFDGrid and GetDiffByFFDGridOnFFDPhysicalVector SHOULD be implemented in derived class when using zxhMetricFFDBase::GetDiffByFFDGrid and GetDiffByFFDGridOnFFDPhysicalVector To compute local similarity

Implements zxhMetricFFDBase.

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Member Data Documentation

zxhImageDataT<float> zxhMetricFFD2Base::m_imgVoxelForceConst[ImageDimensionMax] [protected]

store forces, same extent (or slightly bigger) as FFD and test image image spacing is the same as physical sampling interval

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

• zxhMetricFFD2Base.h
• zxhMetricFFD2Base.cpp