Variational optical flow refinement. More...

#include <tracking.hpp>

Inheritance diagram for cv::VariationalRefinement:

Public Member Functions
virtual CV_WRAP void	calcUV (InputArray I0, InputArray I1, InputOutputArray flow_u, InputOutputArray flow_v)=0
	calc function overload to handle separate horizontal (u) and vertical (v) flow components (to avoid extra splits/merges)

virtual CV_WRAP int	getFixedPointIterations () const =0
	Number of outer (fixed-point) iterations in the minimization procedure.

virtual CV_WRAP void	setFixedPointIterations (int val)=0
	Number of outer (fixed-point) iterations in the minimization procedure.

virtual CV_WRAP int	getSorIterations () const =0
	Number of inner successive over-relaxation (SOR) iterations in the minimization procedure to solve the respective linear system.

virtual CV_WRAP void	setSorIterations (int val)=0
	Number of inner successive over-relaxation (SOR) iterations in the minimization procedure to solve the respective linear system.

virtual CV_WRAP float	getOmega () const =0
	Relaxation factor in SOR.

virtual CV_WRAP void	setOmega (float val)=0
	Relaxation factor in SOR.

virtual CV_WRAP float	getAlpha () const =0
	Weight of the smoothness term.

virtual CV_WRAP void	setAlpha (float val)=0
	Weight of the smoothness term.

virtual CV_WRAP float	getDelta () const =0
	Weight of the color constancy term.

virtual CV_WRAP void	setDelta (float val)=0
	Weight of the color constancy term.

virtual CV_WRAP float	getGamma () const =0
	Weight of the gradient constancy term.

virtual CV_WRAP void	setGamma (float val)=0
	Weight of the gradient constancy term.

virtual CV_WRAP float	getEpsilon () const =0
	Norm value shift for robust penalizer.

virtual CV_WRAP void	setEpsilon (float val)=0
	Norm value shift for robust penalizer.

Public Member Functions inherited from cv::DenseOpticalFlow
virtual CV_WRAP void	calc (InputArray I0, InputArray I1, InputOutputArray flow)=0
	Calculates an optical flow.

virtual CV_WRAP void	collectGarbage ()=0
	Releases all inner buffers.

Public Member Functions inherited from cv::Algorithm
	Algorithm ()

virtual	~Algorithm ()

virtual CV_WRAP void	clear ()
	Clears the algorithm state.

virtual CV_WRAP void	write (FileStorage &fs) const
	Stores algorithm parameters in a file storage.

CV_WRAP void	write (FileStorage &fs, const String &name) const

void	write (const Ptr< FileStorage > &fs, const String &name=String()) const

virtual CV_WRAP void	read (const FileNode &fn)
	Reads algorithm parameters from a file storage.

virtual CV_WRAP bool	empty () const
	Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read.

virtual CV_WRAP void	save (const String &filename) const

virtual CV_WRAP String	getDefaultName () const

Static Public Member Functions
static CV_WRAP Ptr< VariationalRefinement >	create ()
	Creates an instance of VariationalRefinement.

Static Public Member Functions inherited from cv::Algorithm
template<typename _Tp >
static Ptr< _Tp >	read (const FileNode &fn)
	Reads algorithm from the file node.

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.

Additional Inherited Members
Protected Member Functions inherited from cv::Algorithm
void	writeFormat (FileStorage &fs) const

Detailed Description

Variational optical flow refinement.

This class implements variational refinement of the input flow field, i.e. it uses input flow to initialize the minimization of the following functional: $E(U) = \int_{\Omega} \delta \Psi(E_I) + \gamma \Psi(E_G) + \alpha \Psi(E_S)$ , where $E_I,E_G,E_S$ are color constancy, gradient constancy and smoothness terms respectively. $\Psi(s^2)=\sqrt{s^2+\epsilon^2}$ is a robust penalizer to limit the influence of outliers. A complete formulation and a description of the minimization procedure can be found in [Brox2004]

Member Function Documentation

◆ calcUV()

virtual CV_WRAP void cv::VariationalRefinement::calcUV	(	InputArray	I0,
		InputArray	I1,
		InputOutputArray	flow_u,
		InputOutputArray	flow_v
	)

pure virtual

calc function overload to handle separate horizontal (u) and vertical (v) flow components (to avoid extra splits/merges)

◆ create()

static CV_WRAP Ptr< VariationalRefinement > cv::VariationalRefinement::create ( )

static

Creates an instance of VariationalRefinement.

◆ getAlpha()

virtual CV_WRAP float cv::VariationalRefinement::getAlpha ( ) const

pure virtual

Weight of the smoothness term.

See also: setAlpha

◆ getDelta()

virtual CV_WRAP float cv::VariationalRefinement::getDelta ( ) const

pure virtual

Weight of the color constancy term.

See also: setDelta

◆ getEpsilon()

virtual CV_WRAP float cv::VariationalRefinement::getEpsilon ( ) const

pure virtual

Norm value shift for robust penalizer.

See also: setEpsilon

◆ getFixedPointIterations()

virtual CV_WRAP int cv::VariationalRefinement::getFixedPointIterations ( ) const

pure virtual

Number of outer (fixed-point) iterations in the minimization procedure.

See also: setFixedPointIterations

◆ getGamma()

virtual CV_WRAP float cv::VariationalRefinement::getGamma ( ) const

pure virtual

Weight of the gradient constancy term.

See also: setGamma

◆ getOmega()

virtual CV_WRAP float cv::VariationalRefinement::getOmega ( ) const

pure virtual

Relaxation factor in SOR.

See also: setOmega

◆ getSorIterations()

virtual CV_WRAP int cv::VariationalRefinement::getSorIterations ( ) const

pure virtual

Number of inner successive over-relaxation (SOR) iterations in the minimization procedure to solve the respective linear system.

See also: setSorIterations

◆ setAlpha()

virtual CV_WRAP void cv::VariationalRefinement::setAlpha ( float val )

pure virtual

Weight of the smoothness term.

See also: getAlpha

◆ setDelta()

virtual CV_WRAP void cv::VariationalRefinement::setDelta ( float val )

pure virtual

Weight of the color constancy term.

See also: getDelta

◆ setEpsilon()

virtual CV_WRAP void cv::VariationalRefinement::setEpsilon ( float val )

pure virtual

Norm value shift for robust penalizer.

See also: getEpsilon

◆ setFixedPointIterations()

virtual CV_WRAP void cv::VariationalRefinement::setFixedPointIterations ( int val )

pure virtual

Number of outer (fixed-point) iterations in the minimization procedure.

See also: getFixedPointIterations

◆ setGamma()

virtual CV_WRAP void cv::VariationalRefinement::setGamma ( float val )

pure virtual

Weight of the gradient constancy term.

See also: getGamma

◆ setOmega()

virtual CV_WRAP void cv::VariationalRefinement::setOmega ( float val )

pure virtual

Relaxation factor in SOR.

See also: getOmega

◆ setSorIterations()

virtual CV_WRAP void cv::VariationalRefinement::setSorIterations ( int val )

pure virtual

Number of inner successive over-relaxation (SOR) iterations in the minimization procedure to solve the respective linear system.

See also: getSorIterations

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

build/release/_deps/opencv-src/include/opencv4/opencv2/video/tracking.hpp

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ calcUV()

◆ create()

◆ getAlpha()

◆ getDelta()

◆ getEpsilon()

◆ getFixedPointIterations()

◆ getGamma()

◆ getOmega()

◆ getSorIterations()

◆ setAlpha()

◆ setDelta()

◆ setEpsilon()

◆ setFixedPointIterations()

◆ setGamma()

◆ setOmega()

◆ setSorIterations()