cv::optflow::OpticalFlowPCAFlow Class Reference

PCAFlow algorithm. More...

#include <opencv2/optflow/pcaflow.hpp>

Collaboration diagram for cv::optflow::OpticalFlowPCAFlow:

Public Member Functions
	OpticalFlowPCAFlow (Ptr< const PCAPrior > _prior=Ptr< const PCAPrior >(), const Size _basisSize=Size(18, 14), float _sparseRate=0.024, float _retainedCornersFraction=0.2, float _occlusionsThreshold=0.0003, float _dampingFactor=0.00002, float _claheClip=14)
	Creates an instance of PCAFlow algorithm.
void	calc (InputArray I0, InputArray I1, InputOutputArray flow) CV_OVERRIDE
	Calculates an optical flow.
void	collectGarbage () CV_OVERRIDE
	Releases all inner buffers.
Public Member Functions inherited from cv::DenseOpticalFlow
Public Member Functions inherited from cv::Algorithm
	Algorithm ()
virtual	~Algorithm ()
virtual void	clear ()
	Clears the algorithm state.
virtual bool	empty () const
	Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read.
virtual String	getDefaultName () const
virtual void	read (const FileNode &fn)
	Reads algorithm parameters from a file storage.
virtual void	save (const String &filename) const
void	write (const Ptr< FileStorage > &fs, const String &name=String()) const
virtual void	write (FileStorage &fs) const
	Stores algorithm parameters in a file storage.
void	write (FileStorage &fs, const String &name) const

Protected Attributes
const Size	basisSize
const float	claheClip
const float	dampingFactor
const float	occlusionsThreshold
const Ptr< const PCAPrior >	prior
const float	retainedCornersFraction
const float	sparseRate
bool	useOpenCL

Additional Inherited Members
Static Public Member Functions inherited from cv::Algorithm
template<typename _Tp >
static Ptr< _Tp >	load (const String &filename, const String &objname=String())
	Loads algorithm from the file.
template<typename _Tp >
static Ptr< _Tp >	loadFromString (const String &strModel, const String &objname=String())
	Loads algorithm from a String.
template<typename _Tp >
static Ptr< _Tp >	read (const FileNode &fn)
	Reads algorithm from the file node.
Protected Member Functions inherited from cv::Algorithm
void	writeFormat (FileStorage &fs) const

Detailed Description

PCAFlow algorithm.

Constructor & Destructor Documentation

OpticalFlowPCAFlow()

cv::optflow::OpticalFlowPCAFlow::OpticalFlowPCAFlow	(	Ptr< const PCAPrior >	_prior = Ptr< const PCAPrior >(),
		const Size	_basisSize = Size(18, 14),
		float	_sparseRate = 0.024,
		float	_retainedCornersFraction = 0.2,
		float	_occlusionsThreshold = 0.0003,
		float	_dampingFactor = 0.00002,
		float	_claheClip = 14 )

Creates an instance of PCAFlow algorithm.

Parameters

_prior

Learned prior or no prior (default).

See also

cv::optflow::PCAPrior

Parameters

_basisSize	Number of basis vectors.
_sparseRate	Controls density of sparse matches.
_retainedCornersFraction	Retained corners fraction.
_occlusionsThreshold	Occlusion threshold.
_dampingFactor	Regularization term for solving least-squares. It is not related to the prior regularization.
_claheClip	Clip parameter for CLAHE.

Member Function Documentation

calc()

void cv::optflow::OpticalFlowPCAFlow::calc ( InputArray I0, InputArray I1, InputOutputArray flow )

virtual

Calculates an optical flow.

Parameters

I0	first 8-bit single-channel input image.
I1	second input image of the same size and the same type as prev.
flow	computed flow image that has the same size as prev and type CV_32FC2.

Implements cv::DenseOpticalFlow.

collectGarbage()

void cv::optflow::OpticalFlowPCAFlow::collectGarbage ( )

virtual

Releases all inner buffers.

Implements cv::DenseOpticalFlow.

Member Data Documentation

basisSize

const Size cv::optflow::OpticalFlowPCAFlow::basisSize

protected

claheClip

const float cv::optflow::OpticalFlowPCAFlow::claheClip

protected

dampingFactor

const float cv::optflow::OpticalFlowPCAFlow::dampingFactor

protected

occlusionsThreshold

const float cv::optflow::OpticalFlowPCAFlow::occlusionsThreshold

protected

prior

const Ptr<const PCAPrior> cv::optflow::OpticalFlowPCAFlow::prior

protected

retainedCornersFraction

const float cv::optflow::OpticalFlowPCAFlow::retainedCornersFraction

protected

sparseRate

const float cv::optflow::OpticalFlowPCAFlow::sparseRate

protected

useOpenCL

bool cv::optflow::OpticalFlowPCAFlow::useOpenCL

protected

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

• opencv2/optflow/pcaflow.hpp