Takes a mask, dilates outwards, blurs with a gaussian, then substitutes in the dilated mask, so you end up with a bigger mask than you started, with gaussian blurred edges (ie. smooth drop off to zero). More...
Inheritance diagram for itk::ExtendedBrainMaskWithSmoothDropOffCompositeFilter< TImageType >:
Collaboration diagram for itk::ExtendedBrainMaskWithSmoothDropOffCompositeFilter< TImageType >:
Public Types | |
| typedef ExtendedBrainMaskWithSmoothDropOffCompositeFilter | Self |
| typedef ImageToImageFilter < TImageType, TImageType > | Superclass |
| typedef SmartPointer< Self > | Pointer |
| typedef SmartPointer< const Self > | ConstPointer |
| typedef TImageType | ImageType |
| typedef ImageType::Pointer | ImagePointer |
| typedef BinaryThresholdImageFilter < TImageType, TImageType > | BinaryThresholdFilterType |
| typedef BinaryThresholdFilterType::Pointer | BinaryThresholdFilterPointer |
| typedef BinaryCrossStructuringElement < typename TImageType::PixelType, TImageType::ImageDimension > | StructuringElementType |
| typedef BinaryDilateImageFilter < TImageType, TImageType, StructuringElementType > | BinaryDilateFilterType |
| typedef BinaryDilateFilterType::Pointer | BinaryDilateFilterPointer |
| typedef DiscreteGaussianImageFilter < TImageType, TImageType > | GaussianFilterType |
| typedef GaussianFilterType::Pointer | GaussianFilterPointer |
| typedef InjectSourceImageGreaterThanZeroIntoTargetImageFilter < TImageType, TImageType, TImageType > | InjectSourceImageGreaterThanZeroIntoTargetImageFilterType |
| typedef InjectSourceImageGreaterThanZeroIntoTargetImageFilterType::Pointer | InjectSourceImageGreaterThanZeroIntoTargetImageFilterPointer |
Public Member Functions | |
| virtual const char * | GetClassName () const |
| void | PrintSelf (std::ostream &os, itk::Indent indent) const |
| virtual float | GetInitialThreshold () |
| virtual void | SetInitialThreshold (float _arg) |
| virtual unsigned int | GetFirstNumberOfDilations () |
| virtual void | SetFirstNumberOfDilations (unsigned int _arg) |
| virtual unsigned int | GetSecondNumberOfDilations () |
| virtual void | SetSecondNumberOfDilations (unsigned int _arg) |
| virtual float | GetGaussianFWHM () |
| virtual void | SetGaussianFWHM (float _arg) |
Static Public Member Functions | |
| static Pointer | New () |
Protected Member Functions | |
| ExtendedBrainMaskWithSmoothDropOffCompositeFilter () | |
| virtual | ~ExtendedBrainMaskWithSmoothDropOffCompositeFilter () |
| void | GenerateData () |
Detailed Description
template<class TImageType>
class itk::ExtendedBrainMaskWithSmoothDropOffCompositeFilter< TImageType >
Takes a mask, dilates outwards, blurs with a gaussian, then substitutes in the dilated mask, so you end up with a bigger mask than you started, with gaussian blurred edges (ie. smooth drop off to zero).
This filter is designed for Nicky Hobbs to create a brain mask for her fluid registration experiments. As per email from Jo Barnes, you have 4 parameters,
1.) Threshold using value T 2.) First stage of dilation = X voxels 3.) Second stage of dilation = Y voxels 4.) Gaussian FWHM = Z millimetres
and the process is:
1.) Threshold using value T so that if value < T, output = 0 else value = 1. 2.) Dilate mask by X voxels in all directions, let's call the result mask A (binary); 3.) Dilate mask A further by Y voxels in all directions, let's call the result mask B (binary); 4.) Applied to mask B gaussian smoothing with a Zmm FWHM kernel, to generate an approximation to a smooth signal drop-off, let's call the result mask C (reals); 5.) Replaced the inner portion of mask C with mask A, i.e. to enforce the preservation of the original signal intensity values in a neighbourhood of 8 voxels around the original brain mask, followed by a smooth drop-off around that, let's call the result mask D (reals); 6.) The output is mask D.
This class can be used as an example of a Composite Filter.
Member Typedef Documentation
template<class TImageType >
| typedef BinaryDilateFilterType::Pointer itk::ExtendedBrainMaskWithSmoothDropOffCompositeFilter< TImageType >::BinaryDilateFilterPointer |
template<class TImageType >
| typedef BinaryDilateImageFilter<TImageType, TImageType, StructuringElementType> itk::ExtendedBrainMaskWithSmoothDropOffCompositeFilter< TImageType >::BinaryDilateFilterType |
template<class TImageType >
| typedef BinaryThresholdFilterType::Pointer itk::ExtendedBrainMaskWithSmoothDropOffCompositeFilter< TImageType >::BinaryThresholdFilterPointer |
template<class TImageType >
| typedef BinaryThresholdImageFilter<TImageType, TImageType> itk::ExtendedBrainMaskWithSmoothDropOffCompositeFilter< TImageType >::BinaryThresholdFilterType |
template<class TImageType >
| typedef SmartPointer<const Self> itk::ExtendedBrainMaskWithSmoothDropOffCompositeFilter< TImageType >::ConstPointer |
template<class TImageType >
| typedef GaussianFilterType::Pointer itk::ExtendedBrainMaskWithSmoothDropOffCompositeFilter< TImageType >::GaussianFilterPointer |
template<class TImageType >
| typedef DiscreteGaussianImageFilter<TImageType, TImageType> itk::ExtendedBrainMaskWithSmoothDropOffCompositeFilter< TImageType >::GaussianFilterType |
template<class TImageType >
| typedef ImageType::Pointer itk::ExtendedBrainMaskWithSmoothDropOffCompositeFilter< TImageType >::ImagePointer |
template<class TImageType >
| typedef TImageType itk::ExtendedBrainMaskWithSmoothDropOffCompositeFilter< TImageType >::ImageType |
template<class TImageType >
template<class TImageType >
| typedef InjectSourceImageGreaterThanZeroIntoTargetImageFilter<TImageType, TImageType, TImageType> itk::ExtendedBrainMaskWithSmoothDropOffCompositeFilter< TImageType >::InjectSourceImageGreaterThanZeroIntoTargetImageFilterType |
template<class TImageType >
| typedef SmartPointer<Self> itk::ExtendedBrainMaskWithSmoothDropOffCompositeFilter< TImageType >::Pointer |
template<class TImageType >
| typedef ExtendedBrainMaskWithSmoothDropOffCompositeFilter itk::ExtendedBrainMaskWithSmoothDropOffCompositeFilter< TImageType >::Self |
template<class TImageType >
| typedef BinaryCrossStructuringElement<typename TImageType::PixelType, TImageType::ImageDimension> itk::ExtendedBrainMaskWithSmoothDropOffCompositeFilter< TImageType >::StructuringElementType |
template<class TImageType >
| typedef ImageToImageFilter<TImageType, TImageType> itk::ExtendedBrainMaskWithSmoothDropOffCompositeFilter< TImageType >::Superclass |
Constructor & Destructor Documentation
template<class TImageType >
|
protected |
template<class TImageType >
|
protectedvirtual |
Member Function Documentation
template<class TImageType >
|
protected |
template<class TImageType >
|
virtual |
Run-time type information
template<class TImageType >
|
virtual |
template<class TImageType >
|
virtual |
template<class TImageType >
|
virtual |
Set/Get our parameters.
template<class TImageType >
|
virtual |
template<class TImageType >
|
static |
Method for creation through object factory
template<class TImageType >
| void itk::ExtendedBrainMaskWithSmoothDropOffCompositeFilter< TImageType >::PrintSelf | ( | std::ostream & | os, |
| itk::Indent | indent | ||
| ) | const |
Display
template<class TImageType >
|
virtual |
template<class TImageType >
|
virtual |
template<class TImageType >
|
virtual |
template<class TImageType >
|
virtual |
The documentation for this class was generated from the following file:
