cv::Tracker Class Reference

Base abstract class for the long-term tracker: More...

#include "tracker.hpp"

Inheritance diagram for cv::Tracker:

Public Member Functions
virtual	~Tracker ()
bool	init (const Mat &image, const Rect2d &boundingBox)
	Initialize the tracker with a know bounding box that surrounding the target. More...
virtual void	read (const FileNode &fn)=0
	Reads algorithm parameters from a file storage. More...
bool	update (const Mat &image, Rect2d &boundingBox)
	Update the tracker, find the new most likely bounding box for the target. More...
virtual void	write (FileStorage &fs) const =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

Static Public Member Functions
static Ptr< Tracker >	create (const String &trackerType)
	Creates a tracker by its name. More...
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...

Protected Member Functions
virtual bool	initImpl (const Mat &image, const Rect2d &boundingBox)=0
virtual bool	updateImpl (const Mat &image, Rect2d &boundingBox)=0

Protected Attributes
Ptr< TrackerFeatureSet >	featureSet
bool	isInit
Ptr< TrackerModel >	model
Ptr< TrackerSampler >	sampler

Detailed Description

Base abstract class for the long-term tracker:

Constructor & Destructor Documentation

virtual cv::Tracker::~Tracker ( )

virtual

Member Function Documentation

static Ptr<Tracker> cv::Tracker::create ( const String &  trackerType )

static

Creates a tracker by its name.

Parameters

trackerType

Tracker type

The following detector types are supported:

• "MIL" – TrackerMIL
• "BOOSTING" – TrackerBoosting

bool cv::Tracker::init	(	const Mat &	image,
		const Rect2d &	boundingBox
	)

Initialize the tracker with a know bounding box that surrounding the target.

Parameters

image	The initial frame
boundingBox	The initial boundig box

Returns

True if initialization went succesfully, false otherwise

virtual bool cv::Tracker::initImpl ( const Mat &  image, const Rect2d &  boundingBox  )

protectedpure virtual

virtual void cv::Tracker::read ( const FileNode &  fn )

pure virtual

Reads algorithm parameters from a file storage.

Reimplemented from cv::Algorithm.

bool cv::Tracker::update	(	const Mat &	image,
		Rect2d &	boundingBox
	)

Update the tracker, find the new most likely bounding box for the target.

Parameters

image	The current frame
boundingBox	The boundig box that represent the new target location, if true was returned, not modified otherwise

Returns

True means that target was located and false means that tracker cannot locate target in current frame. Note, that latter does not imply that tracker has failed, maybe target is indeed missing from the frame (say, out of sight)

virtual bool cv::Tracker::updateImpl ( const Mat &  image, Rect2d &  boundingBox  )

protectedpure virtual

virtual void cv::Tracker::write ( FileStorage &  fs ) const

pure virtual

Stores algorithm parameters in a file storage.

Reimplemented from cv::Algorithm.

Member Data Documentation

Ptr<TrackerFeatureSet> cv::Tracker::featureSet

protected

bool cv::Tracker::isInit

protected

Ptr<TrackerModel> cv::Tracker::model

protected

Ptr<TrackerSampler> cv::Tracker::sampler

protected

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

• /Users/build/test/opencv_contrib/modules/tracking/include/opencv2/tracking/tracker.hpp