template<typename TInputImage, typename TFeatureImage, typename TOutputPixelType = float>
class itk::LaplacianSegmentationLevelSetImageFilter< TInputImage, TFeatureImage, TOutputPixelType >
Segments structures in images based on a second derivative image features.
- IMPORTANT
- The SegmentationLevelSetImageFilter class and the LaplacianSegmentationLevelSetFunction class contain additional information necessary to the full understanding of how to use this filter.
- OVERVIEW
- This class is a level set method segmentation filter. It constructs a speed function which is zero at image edges as detected by a Laplacian filter. The evolving level set front will therefore tend to lock onto zero crossings in the image. The level set front moves fastest near edges.
- The Laplacian segmentation filter is intended primarily as a tool for refining existing segmentations. The initial isosurface (as given in the seed input image) should ideally be very close to the segmentation boundary of interest. The idea is that a rough segmentation can be refined by allowing the isosurface to deform slightly to achieve a better fit to the edge features of an image. One example of such an application is to refine the output of a hand segmented image.
- Because values in the Laplacian feature image will tend to be low except near edge features, this filter is not effective for segmenting large image regions from small seed surfaces.
- INPUTS
- This filter requires two inputs. The first input is a seed image. This seed image must contain an isosurface that you want to use as the seed for your segmentation. It can be a binary, graylevel, or floating point image. The only requirement is that it contain a closed isosurface that you will identify as the seed by setting the IsosurfaceValue parameter of the filter. For a binary image you will want to set your isosurface value halfway between your on and off values (i.e. for 0's and 1's, use an isosurface value of 0.5).
- The second input is the feature image. This is the image from which the speed function will be calculated. For most applications, this is the image that you want to segment. The desired isosurface in your seed image should lie within the region of your feature image that you are trying to segment.
Note that this filter does no preprocessing of the feature image before thresholding. Because second derivative calculations are highly sensitive to noise, isotropic or anisotropic smoothing of the feature image can dramatically improve the results.
- See SegmentationLevelSetImageFilter for more information on Inputs.
- OUTPUTS
- The filter outputs a single, scalar, real-valued image. Positive *values in the output image are inside the segmented region and negative *values in the image are outside of the inside region. The zero crossings of *the image correspond to the position of the level set front.
- See SparseFieldLevelSetImageFilter and SegmentationLevelSetImageFilter for more information.
- PARAMETERS
- This filter has no parameters other than those described in SegmentationLevelSetImageFilter.
- See also
- SegmentationLevelSetImageFilter
-
LaplacianSegmentationLevelSetFunction,
-
SparseFieldLevelSetImageFilter
- Examples
- Examples/Segmentation/LaplacianSegmentationLevelSetImageFilter.cxx.
Definition at line 102 of file itkLaplacianSegmentationLevelSetImageFilter.h.
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| using | ConstPointer = SmartPointer< const Self > |
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| using | LaplacianFunctionType = LaplacianSegmentationLevelSetFunction< OutputImageType, FeatureImageType > |
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| using | Pointer = SmartPointer< Self > |
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| using | Self = LaplacianSegmentationLevelSetImageFilter |
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| using | Superclass = SegmentationLevelSetImageFilter< TInputImage, TFeatureImage, TOutputPixelType > |
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| using | ConstPointer = SmartPointer< const Self > |
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| using | FeatureImageType = TFeatureImage |
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| using | OutputImageType = Image< TOutputPixelType, Self::InputImageDimension > |
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| using | Pointer = SmartPointer< Self > |
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| using | SegmentationFunctionType = SegmentationLevelSetFunction< OutputImageType, FeatureImageType > |
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| using | Self = SegmentationLevelSetImageFilter |
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| using | SpeedImageType = typename SegmentationFunctionType::ImageType |
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| using | Superclass = SparseFieldLevelSetImageFilter< TInputImage, OutputImageType > |
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| using | VectorImageType = typename SegmentationFunctionType::VectorImageType |
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| using | ConstPointer = SmartPointer< const Self > |
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| using | IndexType = typename OutputImageType::IndexType |
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| using | InputImageType = TInputImage |
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| using | LayerListType = std::vector< LayerPointerType > |
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| using | LayerNodeStorageType = ObjectStore< LayerNodeType > |
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| using | LayerNodeType = SparseFieldLevelSetNode< IndexType > |
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| using | LayerPointerType = typename LayerType::Pointer |
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| using | LayerType = SparseFieldLayer< LayerNodeType > |
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| using | OutputImageType = Image< TOutputPixelType, TInputImage::ImageDimension > |
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| using | Pointer = SmartPointer< Self > |
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| using | Self = SparseFieldLevelSetImageFilter |
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| using | StatusImageType = Image< StatusType, Self::ImageDimension > |
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| using | StatusType = signed char |
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| using | Superclass = FiniteDifferenceImageFilter< TInputImage, Image< TOutputPixelType, TInputImage::ImageDimension > > |
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| using | UpdateBufferType = std::vector< ValueType > |
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| using | ValueType = typename OutputImageType::ValueType |
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| using | ConstPointer = SmartPointer< const Self > |
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| using | FiniteDifferenceFunctionType = FiniteDifferenceFunction< Image< TOutputPixelType, TInputImage::ImageDimension > > |
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| using | InputImageType = TInputImage |
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| using | InputPixelType = typename TInputImage::PixelType |
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| using | InputPixelValueType = typename NumericTraits< InputPixelType >::ValueType |
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| using | NeighborhoodScalesType = typename FiniteDifferenceFunctionType::NeighborhoodScalesType |
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| using | OutputImageType = Image< TOutputPixelType, TInputImage::ImageDimension > |
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| using | OutputPixelType = typename Image< TOutputPixelType, TInputImage::ImageDimension > ::PixelType |
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| using | OutputPixelValueType = typename NumericTraits< OutputPixelType >::ValueType |
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| using | PixelType = OutputPixelType |
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| using | Pointer = SmartPointer< Self > |
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| using | RadiusType = typename FiniteDifferenceFunctionType::RadiusType |
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| using | Self = FiniteDifferenceImageFilter |
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| using | Superclass = InPlaceImageFilter< TInputImage, Image< TOutputPixelType, TInputImage::ImageDimension > > |
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| using | TimeStepType = typename FiniteDifferenceFunctionType::TimeStepType |
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| using | ConstPointer = SmartPointer< const Self > |
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| using | InputImageConstPointer = typename InputImageType::ConstPointer |
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| using | InputImagePixelType = typename InputImageType::PixelType |
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| using | InputImagePointer = typename InputImageType::Pointer |
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| using | InputImageRegionType = typename InputImageType::RegionType |
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| using | InputImageType = TInputImage |
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| using | Pointer = SmartPointer< Self > |
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| using | Self = InPlaceImageFilter |
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| using | Superclass = ImageToImageFilter< TInputImage, Image< TOutputPixelType, TInputImage::ImageDimension > > |
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| using | ConstPointer = SmartPointer< const Self > |
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| using | InputImageConstPointer = typename InputImageType::ConstPointer |
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| using | InputImagePixelType = typename InputImageType::PixelType |
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| using | InputImagePointer = typename InputImageType::Pointer |
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| using | InputImageRegionType = typename InputImageType::RegionType |
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| using | InputImageType = TInputImage |
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| using | Pointer = SmartPointer< Self > |
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| using | Self = ImageToImageFilter |
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| using | Superclass = ImageSource< Image< TOutputPixelType, TInputImage::ImageDimension > > |
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| using | ConstPointer = SmartPointer< const Self > |
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| using | DataObjectIdentifierType = Superclass::DataObjectIdentifierType |
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| using | DataObjectPointer = DataObject::Pointer |
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| using | DataObjectPointerArraySizeType = Superclass::DataObjectPointerArraySizeType |
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| using | OutputImagePixelType = typename OutputImageType::PixelType |
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| using | OutputImagePointer = typename OutputImageType::Pointer |
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| using | OutputImageRegionType = typename OutputImageType::RegionType |
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| using | OutputImageType = Image< TOutputPixelType, TInputImage::ImageDimension > |
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| using | Pointer = SmartPointer< Self > |
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| using | Self = ImageSource |
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| using | Superclass = ProcessObject |
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| using | ConstPointer = SmartPointer< const Self > |
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| using | DataObjectIdentifierType = DataObject::DataObjectIdentifierType |
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| using | DataObjectPointer = DataObject::Pointer |
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| using | DataObjectPointerArray = std::vector< DataObjectPointer > |
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| using | DataObjectPointerArraySizeType = DataObjectPointerArray::size_type |
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| using | MultiThreaderType = MultiThreaderBase |
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| using | NameArray = std::vector< DataObjectIdentifierType > |
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| using | Pointer = SmartPointer< Self > |
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| using | Self = ProcessObject |
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| using | Superclass = Object |
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| using | ConstPointer = SmartPointer< const Self > |
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| using | Pointer = SmartPointer< Self > |
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| using | Self = Object |
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| using | Superclass = LightObject |
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| using | ConstPointer = SmartPointer< const Self > |
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| using | Pointer = SmartPointer< Self > |
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| using | Self = LightObject |
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| | LaplacianSegmentationLevelSetImageFilter () |
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| void | PrintSelf (std::ostream &os, Indent indent) const override |
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| | ~LaplacianSegmentationLevelSetImageFilter () override=default |
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| void | GenerateData () override |
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| void | PrintSelf (std::ostream &os, Indent indent) const override |
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| | SegmentationLevelSetImageFilter () |
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| | ~SegmentationLevelSetImageFilter () override=default |
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| void | InitializeIteration () override |
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| void | AllocateUpdateBuffer () override |
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| void | ApplyUpdate (const TimeStepType &dt) override |
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| TimeStepType | CalculateChange () override |
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| virtual ValueType | CalculateUpdateValue (const IndexType &, const TimeStepType &dt, const ValueType &value, const ValueType &change) |
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| void | ConstructActiveLayer () |
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| void | ConstructLayer (StatusType from, StatusType to) |
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| void | CopyInputToOutput () override |
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| virtual ValueType | GetValueOne () const |
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| virtual ValueType | GetValueZero () const |
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| void | Initialize () override |
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| void | InitializeActiveLayerValues () |
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| virtual void | InitializeBackgroundPixels () |
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| void | PostProcessOutput () override |
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| void | PrintSelf (std::ostream &os, Indent indent) const override |
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| void | ProcessOutsideList (LayerType *OutsideList, StatusType ChangeToStatus) |
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| void | ProcessStatusList (LayerType *InputList, LayerType *OutputList, StatusType ChangeToStatus, StatusType SearchForStatus) |
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| void | PropagateAllLayerValues () |
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| void | PropagateLayerValues (StatusType from, StatusType to, StatusType promote, int InOrOut) |
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| | SparseFieldLevelSetImageFilter () |
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| void | UpdateActiveLayerValues (TimeStepType dt, LayerType *UpList, LayerType *DownList) |
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| | ~SparseFieldLevelSetImageFilter () override=default |
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| | FiniteDifferenceImageFilter () |
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| void | GenerateData () override |
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| void | GenerateInputRequestedRegion () override |
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| virtual bool | Halt () |
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| virtual TimeStepType | ResolveTimeStep (const std::vector< TimeStepType > &timeStepList, const BooleanStdVectorType &valid) const |
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| virtual void | SetElapsedIterations (IdentifierType _arg) |
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| virtual bool | ThreadedHalt (void *) |
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| | ~FiniteDifferenceImageFilter () override=default |
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| virtual bool | GetRunningInPlace () const |
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| | InPlaceImageFilter ()=default |
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| void | ReleaseInputs () override |
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| | ~InPlaceImageFilter () override=default |
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| void | AllocateOutputs () override |
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| virtual void | CallCopyInputRegionToOutputRegion (OutputImageRegionType &destRegion, const InputImageRegionType &srcRegion) |
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| virtual void | CallCopyOutputRegionToInputRegion (InputImageRegionType &destRegion, const OutputImageRegionType &srcRegion) |
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| | ImageToImageFilter () |
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| void | VerifyInputInformation () const override |
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| | ~ImageToImageFilter () override=default |
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| virtual void | PushBackInput (const DataObject *input) |
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| virtual void | PushFrontInput (const DataObject *input) |
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| virtual void | AfterThreadedGenerateData () |
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| virtual void | BeforeThreadedGenerateData () |
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| void | ClassicMultiThread (ThreadFunctionType callbackFunction) |
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| virtual const ImageRegionSplitterBase * | GetImageRegionSplitter () const |
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| | ImageSource () |
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| virtual unsigned int | SplitRequestedRegion (unsigned int i, unsigned int pieces, OutputImageRegionType &splitRegion) |
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| | ~ImageSource () override=default |
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| virtual void | ThreadedGenerateData (const OutputImageRegionType ®ion, ThreadIdType threadId) |
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| virtual void | DynamicThreadedGenerateData (const OutputImageRegionType &outputRegionForThread) |
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| virtual bool | GetDynamicMultiThreading () const |
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| virtual void | SetDynamicMultiThreading (bool _arg) |
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| virtual void | DynamicMultiThreadingOn () |
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| virtual void | AddInput (DataObject *input) |
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| void | AddOptionalInputName (const DataObjectIdentifierType &) |
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| void | AddOptionalInputName (const DataObjectIdentifierType &, DataObjectPointerArraySizeType idx) |
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| virtual void | AddOutput (DataObject *output) |
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| bool | AddRequiredInputName (const DataObjectIdentifierType &) |
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| bool | AddRequiredInputName (const DataObjectIdentifierType &, DataObjectPointerArraySizeType idx) |
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| virtual void | CacheInputReleaseDataFlags () |
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| virtual void | GenerateOutputInformation () |
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| virtual void | GenerateOutputRequestedRegion (DataObject *output) |
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| DataObject * | GetInput (const DataObjectIdentifierType &key) |
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| const DataObject * | GetInput (const DataObjectIdentifierType &key) const |
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| virtual const DataObjectPointerArraySizeType & | GetNumberOfRequiredInputs () const |
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| virtual const DataObjectPointerArraySizeType & | GetNumberOfRequiredOutputs () const |
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| bool | IsIndexedInputName (const DataObjectIdentifierType &) const |
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| bool | IsIndexedOutputName (const DataObjectIdentifierType &) const |
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| bool | IsRequiredInputName (const DataObjectIdentifierType &) const |
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| DataObjectPointerArraySizeType | MakeIndexFromInputName (const DataObjectIdentifierType &name) const |
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| DataObjectPointerArraySizeType | MakeIndexFromOutputName (const DataObjectIdentifierType &name) const |
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| DataObjectIdentifierType | MakeNameFromInputIndex (DataObjectPointerArraySizeType idx) const |
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| DataObjectIdentifierType | MakeNameFromOutputIndex (DataObjectPointerArraySizeType idx) const |
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| | ProcessObject () |
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| virtual void | PropagateResetPipeline () |
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| virtual void | PushBackInput (const DataObject *input) |
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| virtual void | PushFrontInput (const DataObject *input) |
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| virtual void | RemoveInput (const DataObjectIdentifierType &key) |
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| virtual void | RemoveInput (DataObjectPointerArraySizeType) |
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| virtual void | RemoveOutput (const DataObjectIdentifierType &key) |
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| virtual void | RemoveOutput (DataObjectPointerArraySizeType idx) |
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| bool | RemoveRequiredInputName (const DataObjectIdentifierType &) |
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| virtual void | RestoreInputReleaseDataFlags () |
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| virtual void | SetInput (const DataObjectIdentifierType &key, DataObject *input) |
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| virtual void | SetNthInput (DataObjectPointerArraySizeType idx, DataObject *input) |
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| virtual void | SetNthOutput (DataObjectPointerArraySizeType idx, DataObject *output) |
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| void | SetNumberOfIndexedInputs (DataObjectPointerArraySizeType num) |
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| void | SetNumberOfIndexedOutputs (DataObjectPointerArraySizeType num) |
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| virtual void | SetNumberOfRequiredInputs (DataObjectPointerArraySizeType) |
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| virtual void | SetNumberOfRequiredOutputs (DataObjectPointerArraySizeType _arg) |
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| virtual void | SetOutput (const DataObjectIdentifierType &name, DataObject *output) |
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| virtual void | SetPrimaryInput (DataObject *object) |
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| virtual void | SetPrimaryOutput (DataObject *object) |
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| void | SetRequiredInputNames (const NameArray &) |
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| virtual void | VerifyPreconditions () const |
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| | ~ProcessObject () override |
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| DataObject * | GetInput (DataObjectPointerArraySizeType idx) |
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| const DataObject * | GetInput (DataObjectPointerArraySizeType idx) const |
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| DataObject * | GetPrimaryInput () |
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| const DataObject * | GetPrimaryInput () const |
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| virtual void | SetPrimaryInputName (const DataObjectIdentifierType &key) |
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| virtual const char * | GetPrimaryInputName () const |
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| DataObject * | GetOutput (const DataObjectIdentifierType &key) |
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| const DataObject * | GetOutput (const DataObjectIdentifierType &key) const |
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| virtual void | SetPrimaryOutputName (const DataObjectIdentifierType &key) |
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| virtual const char * | GetPrimaryOutputName () const |
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| DataObject * | GetOutput (DataObjectPointerArraySizeType i) |
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| const DataObject * | GetOutput (DataObjectPointerArraySizeType i) const |
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| DataObject * | GetPrimaryOutput () |
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| const DataObject * | GetPrimaryOutput () const |
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| virtual bool | GetThreaderUpdateProgress () const |
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| virtual void | ThreaderUpdateProgressOn () |
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| virtual void | SetThreaderUpdateProgress (bool arg) |
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| | Object () |
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| bool | PrintObservers (std::ostream &os, Indent indent) const |
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| virtual void | SetTimeStamp (const TimeStamp &timeStamp) |
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| | ~Object () override |
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| virtual LightObject::Pointer | InternalClone () const |
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| | LightObject () |
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| virtual void | PrintHeader (std::ostream &os, Indent indent) const |
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| virtual void | PrintTrailer (std::ostream &os, Indent indent) const |
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| virtual | ~LightObject () |
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Inheritance diagram for itk::LaplacianSegmentationLevelSetImageFilter< TInputImage, TFeatureImage, TOutputPixelType >:
1.8.16