| OpenCV 4.3.0 Open Source Computer Vision

Classes | Public Member Functions | Static Public Member Functions | List of all members
cv::TrackerMedianFlow Class Reference
Tracking API

the Median Flow tracker More...

`#include <opencv2/tracking/tracker.hpp>`

Inheritance diagram for cv::TrackerMedianFlow:

## Classes
struct | Params

## Public Member Functions
virtual | ~TrackerMedianFlow () CV_OVERRIDE
Public Member Functions inherited from cv::Tracker
virtual | ~Tracker () CV_OVERRIDE
bool | init (InputArray image, const Rect2d &boundingBox)
| Initialize the tracker with a known bounding box that surrounded the target. More...
virtual void | read (const FileNode &fn) CV_OVERRIDE=0
| Reads algorithm parameters from a file storage. More...
bool | update (InputArray image, Rect2d &boundingBox)
| Update the tracker, find the new most likely bounding box for the target. More...
virtual void | write (FileStorage &fs) const CV_OVERRIDE=0
| Stores algorithm parameters in a file storage. More...
Public Member Functions inherited from cv::Algorithm
| Algorithm ()
virtual | ~Algorithm ()
virtual void | clear ()
| Clears the algorithm state. More...
virtual bool | empty () const
| Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read. More...
virtual String | getDefaultName () const
virtual void | save (const String &filename) const
void | write (const Ptr< FileStorage > &fs, const String &name=String()) const
| simplified API for language bindings This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. More...

## Static Public Member Functions
static Ptr< TrackerMedianFlow > | create (const TrackerMedianFlow::Params &parameters)
| Constructor. More...
static Ptr< TrackerMedianFlow > | create ()
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. More...
template<typename _Tp >
static Ptr< _Tp > | loadFromString (const String &strModel, const String &objname=String())
| Loads algorithm from a String. More...
template<typename _Tp >
static Ptr< _Tp > | read (const FileNode &fn)
| Reads algorithm from the file node. More...

## Additional Inherited Members
Protected Member Functions inherited from cv::Tracker
virtual bool | initImpl (const Mat &image, const Rect2d &boundingBox)=0
virtual bool | updateImpl (const Mat &image, Rect2d &boundingBox)=0
Protected Member Functions inherited from cv::Algorithm
void | writeFormat (FileStorage &fs) const
Protected Attributes inherited from cv::Tracker
Ptr< TrackerFeatureSet > | featureSet
bool | isInit
Ptr< TrackerModel > | model
Ptr< TrackerSampler > | sampler

## Detailed Description

the Median Flow tracker

Implementation of a paper [117] .

The tracker is suitable for very smooth and predictable movements when object is visible throughout the whole sequence. It's quite and accurate for this type of problems (in particular, it was shown by authors to outperform MIL). During the implementation period the code at http://www.aonsquared.co.uk/node/5, the courtesy of the author Arthur Amarra, was used for the reference purpose.

## Constructor & Destructor Documentation

## ◆ ~TrackerMedianFlow()

virtual cv::TrackerMedianFlow::~TrackerMedianFlow | ( |  | ) |
| inline virtual

## Member Function Documentation

## ◆ create() [1/2]

static Ptr<TrackerMedianFlow> cv::TrackerMedianFlow::create | ( | const TrackerMedianFlow::Params & | parameters | ) |
| static

Python:
| retval | = | cv.TrackerMedianFlow_create( |  | )

Constructor.

Parameters

  parameters | Median Flow parameters TrackerMedianFlow::Params

## ◆ create() [2/2]

static Ptr<TrackerMedianFlow> cv::TrackerMedianFlow::create | ( |  | ) |
| static

Python:
| retval | = | cv.TrackerMedianFlow_create( |  | )

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

- opencv2/tracking/tracker.hpp