cv::cuda::SparsePyrLKOpticalFlow Class Reference

Class used for calculating a sparse optical flow. More...

#include <opencv2/cudaoptflow.hpp>

Collaboration diagram for cv::cuda::SparsePyrLKOpticalFlow:

Public Member Functions
virtual int	getMaxLevel () const =0
virtual int	getNumIters () const =0
virtual bool	getUseInitialFlow () const =0
virtual Size	getWinSize () const =0
virtual void	setMaxLevel (int maxLevel)=0
virtual void	setNumIters (int iters)=0
virtual void	setUseInitialFlow (bool useInitialFlow)=0
virtual void	setWinSize (Size winSize)=0
Public Member Functions inherited from cv::cuda::SparseOpticalFlow
virtual void	calc (InputArray prevImg, InputArray nextImg, InputArray prevPts, InputOutputArray nextPts, OutputArray status, OutputArray err=cv::noArray(), Stream &stream=Stream::Null())=0
	Calculates a sparse optical flow.
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

Static Public Member Functions
static Ptr< cuda::SparsePyrLKOpticalFlow >	create (Size winSize=Size(21, 21), int maxLevel=3, int iters=30, bool useInitialFlow=false)
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.

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

Detailed Description

Class used for calculating a sparse optical flow.

The class can calculate an optical flow for a sparse feature set using the iterative Lucas-Kanade method with pyramids.

See also

calcOpticalFlowPyrLK

Note

• An example of the Lucas Kanade optical flow algorithm can be found at opencv_source_code/samples/gpu/pyrlk_optical_flow.cpp

Member Function Documentation

create()

static Ptr< cuda::SparsePyrLKOpticalFlow > cv::cuda::SparsePyrLKOpticalFlow::create ( Size winSize = Size(21, 21), int maxLevel = 3, int iters = 30, bool useInitialFlow = false )

static

getMaxLevel()

virtual int cv::cuda::SparsePyrLKOpticalFlow::getMaxLevel ( ) const

pure virtual

getNumIters()

virtual int cv::cuda::SparsePyrLKOpticalFlow::getNumIters ( ) const

pure virtual

getUseInitialFlow()

virtual bool cv::cuda::SparsePyrLKOpticalFlow::getUseInitialFlow ( ) const

pure virtual

getWinSize()

virtual Size cv::cuda::SparsePyrLKOpticalFlow::getWinSize ( ) const

pure virtual

setMaxLevel()

virtual void cv::cuda::SparsePyrLKOpticalFlow::setMaxLevel ( int maxLevel )

pure virtual

setNumIters()

virtual void cv::cuda::SparsePyrLKOpticalFlow::setNumIters ( int iters )

pure virtual

setUseInitialFlow()

virtual void cv::cuda::SparsePyrLKOpticalFlow::setUseInitialFlow ( bool useInitialFlow )

pure virtual

setWinSize()

virtual void cv::cuda::SparsePyrLKOpticalFlow::setWinSize ( Size winSize )

pure virtual

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

• opencv2/cudaoptflow.hpp