#include <itkTemporalProcessObject.h>

Inheritance diagram for itk::TemporalProcessObject:

Collaboration diagram for itk::TemporalProcessObject:

Detailed Description

TemporalProcessObject implements a ProcessObject for the itk pipeline with the notion of a temporal region.

TemporalProcessObject acts as a pass-through in the inheritance tree in order to require that subclasses properly implement handeling of temporal regions. The key parameters of a temporal process object are:

m_UnitInputNumberOfFrames m_UnitOutputNumberOfFrames m_FrameSkipPerOutput m_InputStencilCurrentFrameIndex

These parameters are protected by default so that the filter writer can choose which to expose and which to keep constant. For a full explanation of each parameter, see the individual comments with their declarations. Subclasses of TemporalProcessObject must implement one of the following:

GenerateData() TemporalStreamingGenerateData()

By default, GenerateData will split the requested temporal region of the input and output temporal data objects into sub-requests of unit input and unit output size. For example, if the output requests 3 frames and the filter has unit input size of 2 and unit output size of 1, GenerateData will produce 3 sub-requests that each require the input to provide 2 frames. Using this default behavior, TemporalStreamingGenerateData must be implemented and can assume that the RequestedTemporalRegion on the input and output are unit size. If the temporal streaming behavior is not desired, GenerateData can be implemented to directly handle the full output requested temporal region in a single pass.

Definition at line 66 of file itkTemporalProcessObject.h.

Public Types
typedef SmartPointer< const Self >	ConstPointer

typedef SmartPointer< Self >	Pointer

typedef TemporalProcessObject	Self

typedef ProcessObject	Superclass

Public Types inherited from itk::ProcessObject
typedef SmartPointer< const Self >	ConstPointer

typedef DataObject::DataObjectIdentifierType	DataObjectIdentifierType

typedef DataObject::Pointer	DataObjectPointer

typedef std::vector < DataObjectPointer >	DataObjectPointerArray

typedef DataObjectPointerArray::size_type	DataObjectPointerArraySizeType

typedef std::vector < DataObjectIdentifierType >	NameArray

typedef SmartPointer< Self >	Pointer

typedef ProcessObject	Self

typedef Object	Superclass

Public Types inherited from itk::Object
typedef SmartPointer< const Self >	ConstPointer

typedef SmartPointer< Self >	Pointer

typedef Object	Self

typedef LightObject	Superclass

Public Types inherited from itk::LightObject
typedef SmartPointer< const Self >	ConstPointer

typedef SmartPointer< Self >	Pointer

typedef LightObject	Self

Public Member Functions
virtual void	EnlargeOutputRequestedRegion (DataObject *output) override

virtual void	GenerateData () override

virtual void	GenerateInputRequestedRegion () override

virtual void	GenerateOutputRequestedRegion (DataObject *output) override

virtual const char *	GetNameOfClass () const

virtual SizeValueType	GetUnitInputNumberOfFrames ()

virtual SizeValueType	GetUnitOutputNumberOfFrames ()

virtual void	TemporalStreamingGenerateData ()

virtual void	UpdateOutputData (DataObject *output) override

virtual void	UpdateOutputInformation () override

Public Member Functions inherited from itk::ProcessObject
virtual void	AbortGenerateDataOff ()

virtual void	AbortGenerateDataOn ()

virtual const bool &	GetAbortGenerateData () const

DataObjectPointerArray	GetIndexedInputs ()

DataObjectPointerArray	GetIndexedOutputs ()

NameArray	GetInputNames () const

DataObjectPointerArray	GetInputs ()

MultiThreader *	GetMultiThreader () const

DataObjectPointerArraySizeType	GetNumberOfIndexedInputs () const

DataObjectPointerArraySizeType	GetNumberOfIndexedOutputs () const

DataObjectPointerArraySizeType	GetNumberOfInputs () const

DataObjectPointerArraySizeType	GetNumberOfOutputs () const

virtual DataObjectPointerArraySizeType	GetNumberOfValidRequiredInputs () const

NameArray	GetOutputNames () const

DataObjectPointerArray	GetOutputs ()

virtual const float &	GetProgress () const

NameArray	GetRequiredInputNames () const

bool	HasInput (const DataObjectIdentifierType &key) const

bool	HasOutput (const DataObjectIdentifierType &key) const

virtual DataObjectPointer	MakeOutput (DataObjectPointerArraySizeType idx)

virtual DataObjectPointer	MakeOutput (const DataObjectIdentifierType &)

virtual void	PrepareOutputs ()

virtual void	PropagateRequestedRegion (DataObject *output)

virtual void	ResetPipeline ()

virtual void	SetAbortGenerateData (bool _arg)

virtual void	Update ()

virtual void	UpdateLargestPossibleRegion ()

void	UpdateProgress (float progress)

void	SetProgress (float progress)

virtual void	SetReleaseDataFlag (bool flag)

virtual bool	GetReleaseDataFlag () const

void	ReleaseDataFlagOn ()

void	ReleaseDataFlagOff ()

virtual void	SetReleaseDataBeforeUpdateFlag (bool _arg)

virtual const bool &	GetReleaseDataBeforeUpdateFlag () const

virtual void	ReleaseDataBeforeUpdateFlagOn ()

virtual void	ReleaseDataBeforeUpdateFlagOff ()

virtual void	SetNumberOfThreads (ThreadIdType _arg)

virtual const ThreadIdType &	GetNumberOfThreads () const

Public Member Functions inherited from itk::Object
unsigned long	AddObserver (const EventObject &event, Command *)

unsigned long	AddObserver (const EventObject &event, Command *) const

virtual LightObject::Pointer	CreateAnother () const override

virtual void	DebugOff () const

virtual void	DebugOn () const

Command *	GetCommand (unsigned long tag)

bool	GetDebug () const

MetaDataDictionary &	GetMetaDataDictionary ()

const MetaDataDictionary &	GetMetaDataDictionary () const

virtual ModifiedTimeType	GetMTime () const

virtual const TimeStamp &	GetTimeStamp () const

bool	HasObserver (const EventObject &event) const

void	InvokeEvent (const EventObject &)

void	InvokeEvent (const EventObject &) const

virtual void	Modified () const

virtual void	Register () const override

void	RemoveAllObservers ()

void	RemoveObserver (unsigned long tag)

void	SetDebug (bool debugFlag) const

void	SetMetaDataDictionary (const MetaDataDictionary &rhs)

virtual void	SetReferenceCount (int) override

virtual void	UnRegister () const noexceptoverride

virtual void	SetObjectName (std::string _arg)

virtual const std::string &	GetObjectName () const

Public Member Functions inherited from itk::LightObject
virtual void	Delete ()

virtual int	GetReferenceCount () const

	itkCloneMacro (Self)

void	Print (std::ostream &os, Indent indent=0) const

Protected Member Functions
virtual void	AfterTemporalStreamingGenerateData ()

virtual void	BeforeTemporalStreamingGenerateData ()

virtual void	EnlargeOutputRequestedTemporalRegion (TemporalDataObject *output)

virtual TemporalRegion	GenerateDefaultLargestPossibleTemporalRegion ()

virtual void	GenerateInputRequestedTemporalRegion ()

virtual void	GenerateOutputRequestedTemporalRegion (TemporalDataObject *output)

virtual SizeValueType	GetInputStencilCurrentFrameIndex ()

virtual void	PrintSelf (std::ostream &os, Indent indent) const override

virtual void	SetFrameSkipPerOutput (OffsetValueType _arg)

virtual void	SetInputStencilCurrentFrameIndex (SizeValueType _arg)

virtual void	SetUnitInputNumberOfFrames (SizeValueType _arg)

virtual void	SetUnitOutputNumberOfFrames (SizeValueType _arg)

virtual std::vector < TemporalRegion >	SplitRequestedTemporalRegion ()

	TemporalProcessObject ()

virtual	~TemporalProcessObject ()

Protected Member Functions inherited from itk::ProcessObject
virtual void	AddInput (DataObject *input)

virtual void	AddOutput (DataObject *output)

bool	AddRequiredInputName (const DataObjectIdentifierType &)

bool	AddRequiredInputName (const DataObjectIdentifierType &, DataObjectPointerArraySizeType idx)

virtual void	CacheInputReleaseDataFlags ()

virtual void	GenerateOutputInformation ()

DataObject *	GetInput (const DataObjectIdentifierType &key)

const DataObject *	GetInput (const DataObjectIdentifierType &key) const

virtual const DataObjectPointerArraySizeType &	GetNumberOfRequiredInputs () const

virtual const DataObjectPointerArraySizeType &	GetNumberOfRequiredOutputs () const

bool	IsIndexedInputName (const DataObjectIdentifierType &) const

bool	IsIndexedOutputName (const DataObjectIdentifierType &) const

bool	IsRequiredInputName (const DataObjectIdentifierType &) const

	itkLegacyMacro (virtual void RemoveOutput(DataObject *output))

	itkLegacyMacro (void SetNumberOfOutputs(DataObjectPointerArraySizeType num))

	itkLegacyMacro (virtual void RemoveInput(DataObject *input))

	itkLegacyMacro (void SetNumberOfInputs(DataObjectPointerArraySizeType num))

DataObjectPointerArraySizeType	MakeIndexFromInputName (const DataObjectIdentifierType &name) const

DataObjectPointerArraySizeType	MakeIndexFromOutputName (const DataObjectIdentifierType &name) const

DataObjectIdentifierType	MakeNameFromInputIndex (DataObjectPointerArraySizeType idx) const

DataObjectIdentifierType	MakeNameFromOutputIndex (DataObjectPointerArraySizeType idx) const

virtual void	PopBackInput ()

virtual void	PopFrontInput ()

	ProcessObject ()

virtual void	PropagateResetPipeline ()

virtual void	PushBackInput (const DataObject *input)

virtual void	PushFrontInput (const DataObject *input)

virtual void	ReleaseInputs ()

virtual void	RemoveInput (const DataObjectIdentifierType &key)

virtual void	RemoveInput (DataObjectPointerArraySizeType)

virtual void	RemoveOutput (const DataObjectIdentifierType &key)

virtual void	RemoveOutput (DataObjectPointerArraySizeType idx)

bool	RemoveRequiredInputName (const DataObjectIdentifierType &)

virtual void	RestoreInputReleaseDataFlags ()

virtual void	SetInput (const DataObjectIdentifierType &key, DataObject *input)

virtual void	SetNthInput (DataObjectPointerArraySizeType num, DataObject *input)

virtual void	SetNthOutput (DataObjectPointerArraySizeType num, DataObject *output)

void	SetNumberOfIndexedInputs (DataObjectPointerArraySizeType num)

void	SetNumberOfIndexedOutputs (DataObjectPointerArraySizeType num)

virtual void	SetNumberOfRequiredInputs (DataObjectPointerArraySizeType)

virtual void	SetNumberOfRequiredOutputs (DataObjectPointerArraySizeType _arg)

virtual void	SetOutput (const DataObjectIdentifierType &key, DataObject *output)

virtual void	SetPrimaryInput (DataObject *input)

virtual void	SetPrimaryOutput (DataObject *output)

void	SetRequiredInputNames (const NameArray &)

virtual void	VerifyInputInformation ()

virtual void	VerifyPreconditions ()

	~ProcessObject ()

DataObject *	GetInput (DataObjectPointerArraySizeType idx)

const DataObject *	GetInput (DataObjectPointerArraySizeType idx) const

DataObject *	GetPrimaryInput ()

const DataObject *	GetPrimaryInput () const

virtual void	SetPrimaryInputName (const DataObjectIdentifierType &key)

virtual const char *	GetPrimaryInputName (void) const

DataObject *	GetOutput (const DataObjectIdentifierType &key)

const DataObject *	GetOutput (const DataObjectIdentifierType &key) const

virtual void	SetPrimaryOutputName (const DataObjectIdentifierType &key)

virtual const char *	GetPrimaryOutputName (void) const

DataObject *	GetOutput (DataObjectPointerArraySizeType idx)

const DataObject *	GetOutput (DataObjectPointerArraySizeType idx) const

DataObject *	GetPrimaryOutput ()

const DataObject *	GetPrimaryOutput () const

Protected Member Functions inherited from itk::Object
	Object ()

bool	PrintObservers (std::ostream &os, Indent indent) const

virtual void	SetTimeStamp (const TimeStamp &time)

virtual	~Object ()

Protected Member Functions inherited from itk::LightObject
virtual LightObject::Pointer	InternalClone () const

	LightObject ()

virtual void	PrintHeader (std::ostream &os, Indent indent) const

virtual void	PrintTrailer (std::ostream &os, Indent indent) const

virtual	~LightObject ()

Protected Attributes
OffsetValueType	m_FrameSkipPerOutput

SizeValueType	m_InputStencilCurrentFrameIndex

SizeValueType	m_UnitInputNumberOfFrames

SizeValueType	m_UnitOutputNumberOfFrames

Protected Attributes inherited from itk::ProcessObject
TimeStamp	m_OutputInformationMTime

bool	m_Updating

Protected Attributes inherited from itk::LightObject
AtomicInt< int >	m_ReferenceCount

Private Member Functions
void	operator= (const Self &) ITK_DELETE_FUNCTION

	TemporalProcessObject (const Self &) ITK_DELETE_FUNCTION

Additional Inherited Members
Static Public Member Functions inherited from itk::Object
static bool	GetGlobalWarningDisplay ()

static void	GlobalWarningDisplayOff ()

static void	GlobalWarningDisplayOn ()

static Pointer	New ()

static void	SetGlobalWarningDisplay (bool flag)

Static Public Member Functions inherited from itk::LightObject
static void	BreakOnError ()

static Pointer	New ()

Member Typedef Documentation

typedef SmartPointer< const Self > itk::TemporalProcessObject::ConstPointer

Definition at line 76 of file itkTemporalProcessObject.h.

typedef SmartPointer< Self > itk::TemporalProcessObject::Pointer

Definition at line 75 of file itkTemporalProcessObject.h.

typedef TemporalProcessObject itk::TemporalProcessObject::Self

Standard class typedefs

Definition at line 73 of file itkTemporalProcessObject.h.

typedef ProcessObject itk::TemporalProcessObject::Superclass

Definition at line 74 of file itkTemporalProcessObject.h.

Constructor & Destructor Documentation

itk::TemporalProcessObject::TemporalProcessObject ( )

protected

Constructor that initializes members

virtual itk::TemporalProcessObject::~TemporalProcessObject ( )

inlineprotectedvirtual

Empty Destructor

Definition at line 149 of file itkTemporalProcessObject.h.

itk::TemporalProcessObject::TemporalProcessObject ( const Self & )

private

Member Function Documentation

virtual void itk::TemporalProcessObject::AfterTemporalStreamingGenerateData ( )

inlineprotectedvirtual

Method that gets called by GenerateData after TemporalStreamingGenerateData. Subclasses can override this method to provide post-processing for the data after producing the requested output temporal region.

Definition at line 204 of file itkTemporalProcessObject.h.

virtual void itk::TemporalProcessObject::BeforeTemporalStreamingGenerateData ( )

inlineprotectedvirtual

Method that gets called by GenerateData before TemporalStreamingGenerateData. Subclasses can override this method to provide pre-processing for the data before splitting up the requested output temporal region.

Reimplemented in itk::VideoToVideoFilter< TInputVideoStream, TOutputVideoStream >, itk::VideoToVideoFilter< itk::VideoStream< TImageToImageFilter::InputImageType >, itk::VideoStream< TImageToImageFilter::OutputImageType > >, and itk::VideoToVideoFilter< TVideoStream, TVideoStream >.

Definition at line 197 of file itkTemporalProcessObject.h.

virtual void itk::TemporalProcessObject::EnlargeOutputRequestedRegion ( DataObject * output )

overridevirtual

Override EnlargeOutputRequestedRegion, GenerateOutputRequestedRegion, and GenerateInputRequestedRegion to handle temporal regions

Reimplemented from itk::ProcessObject.

virtual void itk::TemporalProcessObject::EnlargeOutputRequestedTemporalRegion ( TemporalDataObject * output )

protectedvirtual

Explicitly handle temporal regions in EnlargeRequestedRegion. The default implementation makes sure that the output requested temporal region is contained in the buffered temporal region or has a duration that is a multiple of the unit output number of frames

virtual void itk::TemporalProcessObject::GenerateData ( )

overridevirtual

Override GenerateData to do temporal region streaming. This is analogous to the ThreadedGenerateData system implemented in ImageSource, but it functions slightly differently. Since most temporal processes are going to to need more input frames than they produce output frames for a single operation, we cannot use the same model as spatial streaming which assumes that the input requested region is fully populated before producing any output. Instead, once we have split the requested output region, we reset the requested temporal region of the input to each input requested temporal sub-region (in sequence) and re-propagate the temporal region request up the pipeline.

Reimplemented from itk::ProcessObject.

virtual TemporalRegion itk::TemporalProcessObject::GenerateDefaultLargestPossibleTemporalRegion ( )

protectedvirtual

Generate a default LargestPossibleRegion. This is used by temporal process objects that have no input. The default implementation starts at frame 0 and has infinite duration.

virtual void itk::TemporalProcessObject::GenerateInputRequestedRegion ( )

overridevirtual

What is the input requested region that is required to produce the output requested region? By default, the largest possible region is always required but this is overridden in many subclasses. For instance, for an image processing filter where an output pixel is a simple function of an input pixel, the input requested region will be set to the output requested region. For an image processing filter where an output pixel is a function of the pixels in a neighborhood of an input pixel, then the input requested region will need to be larger than the output requested region (to avoid introducing artificial boundary conditions). This function should never request an input region that is outside the the input largest possible region (i.e. implementations of this method should crop the input requested region at the boundaries of the input largest possible region).

Reimplemented from itk::ProcessObject.

Reimplemented in itk::VideoToVideoFilter< TInputVideoStream, TOutputVideoStream >, itk::VideoToVideoFilter< itk::VideoStream< TImageToImageFilter::InputImageType >, itk::VideoStream< TImageToImageFilter::OutputImageType > >, and itk::VideoToVideoFilter< TVideoStream, TVideoStream >.

virtual void itk::TemporalProcessObject::GenerateInputRequestedTemporalRegion ( )

protectedvirtual

Explicitly handle temporal regions in GenerateInputRequestedRegion. The default implementation sets the requested temporal region on the input to start at m_FrameSkipPerOutput times the start frame of the requested output temporal region with the duration needed to produce the entire requested output.

NOTE: This default propagation will be overwritten during the UpdateOutputData phase by the temporal streaming mechanism if a subclass implements TemporalStreamingGenerateData, but this propagation is provided so that subclasses which directly implement GenerateData will work correctly.

virtual void itk::TemporalProcessObject::GenerateOutputRequestedRegion ( DataObject * output )

overridevirtual

Given one output whose requested region has been set, how should the requested regions for the remaining outputs of the process object be set? By default, all the outputs are set to the same requested region. If a filter needs to produce different requested regions for each output, for instance an image processing filter producing several outputs at different resolutions, then that filter may override this method and set the requested regions appropriatedly.

Note that a filter producing multiple outputs of different types is required to override this method. The default implementation can only correctly handle multiple outputs of the same type.

Reimplemented from itk::ProcessObject.

Reimplemented in itk::VideoToVideoFilter< TInputVideoStream, TOutputVideoStream >, itk::VideoToVideoFilter< itk::VideoStream< TImageToImageFilter::InputImageType >, itk::VideoStream< TImageToImageFilter::OutputImageType > >, and itk::VideoToVideoFilter< TVideoStream, TVideoStream >.

virtual void itk::TemporalProcessObject::GenerateOutputRequestedTemporalRegion ( TemporalDataObject * output )

protectedvirtual

Explicitly handle temporal regions in GeneratOutputRegion. The default implementation checks to see if a request is currently set and if not, it sets the requested temporal region to match the largest possible temporal region

Note: If the largest possible temporal duration has infinite duration, the requested temporal region will be set to have duration 1.

Reimplemented in itk::VideoSource< TOutputVideoStream >, itk::VideoSource< TVideoStream >, and itk::VideoSource< itk::VideoStream< TImageToImageFilter::OutputImageType > >.

virtual SizeValueType itk::TemporalProcessObject::GetInputStencilCurrentFrameIndex ( )

protectedvirtual

virtual const char* itk::TemporalProcessObject::GetNameOfClass ( ) const

virtual

Run-time type information (and related methods).

Reimplemented from itk::ProcessObject.

Reimplemented in itk::VideoToVideoFilter< TInputVideoStream, TOutputVideoStream >, itk::VideoToVideoFilter< itk::VideoStream< TImageToImageFilter::InputImageType >, itk::VideoStream< TImageToImageFilter::OutputImageType > >, itk::VideoToVideoFilter< TVideoStream, TVideoStream >, itk::VideoFileReader< TOutputVideoStream >, itk::VideoSource< TOutputVideoStream >, itk::VideoSource< TVideoStream >, itk::VideoSource< itk::VideoStream< TImageToImageFilter::OutputImageType > >, itk::VideoFileWriter< TInputVideoStream >, itk::ImageFilterToVideoFilterWrapper< TImageToImageFilter >, itk::FrameDifferenceVideoFilter< TInputVideoStream, TOutputVideoStream >, itk::FrameAverageVideoFilter< TInputVideoStream, TOutputVideoStream >, and itk::DecimateFramesVideoFilter< TVideoStream >.

virtual SizeValueType itk::TemporalProcessObject::GetUnitInputNumberOfFrames ( )

virtual

Get the number of frames of input required to produce output. We don't provide a Set method because we want some filters to be able to hold this as a constant.

virtual SizeValueType itk::TemporalProcessObject::GetUnitOutputNumberOfFrames ( )

virtual

Get the number of frames of output produced for a single set of input frames. We don't provide a Set method because we want some filters to be able to hold this as a constant.

void itk::TemporalProcessObject::operator= ( const Self & )

private

virtual void itk::TemporalProcessObject::PrintSelf	(	std::ostream &	os,
		Indent	indent
	)		const

overrideprotectedvirtual

ITK print mechanism

Reimplemented from itk::ProcessObject.

Reimplemented in itk::VideoSource< TOutputVideoStream >, itk::VideoSource< TVideoStream >, itk::VideoSource< itk::VideoStream< TImageToImageFilter::OutputImageType > >, itk::VideoToVideoFilter< TInputVideoStream, TOutputVideoStream >, itk::VideoToVideoFilter< itk::VideoStream< TImageToImageFilter::InputImageType >, itk::VideoStream< TImageToImageFilter::OutputImageType > >, itk::VideoToVideoFilter< TVideoStream, TVideoStream >, itk::VideoFileWriter< TInputVideoStream >, itk::VideoFileReader< TOutputVideoStream >, itk::ImageFilterToVideoFilterWrapper< TImageToImageFilter >, itk::FrameDifferenceVideoFilter< TInputVideoStream, TOutputVideoStream >, itk::FrameAverageVideoFilter< TInputVideoStream, TOutputVideoStream >, and itk::DecimateFramesVideoFilter< TVideoStream >.

virtual void itk::TemporalProcessObject::SetFrameSkipPerOutput ( OffsetValueType _arg )

protectedvirtual

virtual void itk::TemporalProcessObject::SetInputStencilCurrentFrameIndex ( SizeValueType _arg )

protectedvirtual

virtual void itk::TemporalProcessObject::SetUnitInputNumberOfFrames ( SizeValueType _arg )

protectedvirtual

virtual void itk::TemporalProcessObject::SetUnitOutputNumberOfFrames ( SizeValueType _arg )

protectedvirtual

virtual std::vector<TemporalRegion> itk::TemporalProcessObject::SplitRequestedTemporalRegion ( )

protectedvirtual

Split the output's RequestedTemporalRegion into the proper number of sub-regions. By default it is assumed that each sub-region processed should be generated using the set of input frames starting one frame forward in time from the previous sub-region. To change this, set FrameSkipPerOutput to something other than 1. Positive indicates forward in time while negative indicates backward in time. The set of returned TemporalRegion objects is the set of temporal regions that are needed as input to generate the entire output requested region

virtual void itk::TemporalProcessObject::TemporalStreamingGenerateData ( )

virtual

TemporalStreamingGenerateData is in charge of producing output for a single portion of the output requested temporal region. This is where the body of the process will take place. Subclasses that handle spatial data (such as video frames) may instead use this function to split the requested spatial region and process the spatial sub-regions using the mechanism implemented in ImageBase for multithreading.

Reimplemented in itk::VideoFileWriter< TInputVideoStream >, itk::VideoSource< TOutputVideoStream >, itk::VideoSource< TVideoStream >, itk::VideoSource< itk::VideoStream< TImageToImageFilter::OutputImageType > >, itk::VideoFileReader< TOutputVideoStream >, and itk::ImageFilterToVideoFilterWrapper< TImageToImageFilter >.

virtual void itk::TemporalProcessObject::UpdateOutputData ( DataObject * output )

overridevirtual

Override ProcessObject's implementation of UpdateOutputData. This is necessary because by default ProcessObject propagates the call to its inputs before calling GenerateData. This doesn't work here because we need to adjust the requested temporal region of our inputs before calling their UpdateOutputData methods

NOTE: Subclasses that don't use the temporal streaming process must override this function to call the version implemented in ProcessObject

Code: this->ProcessObject::UpdateOutputData( output )

Reimplemented from itk::ProcessObject.

virtual void itk::TemporalProcessObject::UpdateOutputInformation ( )

overridevirtual

The default implementation of UpdateOutputInformation to handle temporal regions will compute the proper size of the output largest possible temporal region based on the largest possible temporal region of the input, the unit input/output sizes for the process, and the number of frames skipped per output

Reimplemented from itk::ProcessObject.

Reimplemented in itk::VideoToVideoFilter< TInputVideoStream, TOutputVideoStream >, itk::VideoToVideoFilter< itk::VideoStream< TImageToImageFilter::InputImageType >, itk::VideoStream< TImageToImageFilter::OutputImageType > >, itk::VideoToVideoFilter< TVideoStream, TVideoStream >, and itk::VideoFileReader< TOutputVideoStream >.

Member Data Documentation

OffsetValueType itk::TemporalProcessObject::m_FrameSkipPerOutput

protected

Number of frames to move in order to produce each set of output frames. There is no public API for this member, but subclasses can set it internally (or provide access to it) if they wish.

Definition at line 228 of file itkTemporalProcessObject.h.

SizeValueType itk::TemporalProcessObject::m_InputStencilCurrentFrameIndex

protected

Member to indicate the location of the "current frame" in the minimum set of input frames. For example, if the unit number of input frames is 6 and m_InputStencilCurrentFrameIndex = 4, this indicates that for output frame n, frames n-4 through n+1 are required, whereas if m_InputStencilCurrentFrameIndex = 0, frames n through n+5 are required.

Definition at line 235 of file itkTemporalProcessObject.h.

SizeValueType itk::TemporalProcessObject::m_UnitInputNumberOfFrames

protected

Members to indicate the number of input frames and output frames required to perform a single pass through the processing.

Definition at line 216 of file itkTemporalProcessObject.h.

SizeValueType itk::TemporalProcessObject::m_UnitOutputNumberOfFrames

protected

Definition at line 223 of file itkTemporalProcessObject.h.

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