DarkHelp::PositionTracker::Obj Struct Reference

The position tracker uses Obj to keep information on objects that are being tracked. More...

Collaboration diagram for DarkHelp::PositionTracker::Obj:

Public Member Functions
	Obj ()
	Constructor. More...
	~Obj ()
	Destructor. More...
Obj &	clear ()
	Reset this object. Sets the oid to zero and removes any frames, rectangles, and classes. More...
bool	empty () const
	Returns true if this object has no object ID or frame information. More...
size_t	first_seen_frame_id () const
	Returns the frame where this object first appeared. More...
size_t	last_seen_frame_id () const
	Returns the most recent frame. More...
cv::Rect	rect () const
	Returns the rectangle from the most recent frame. More...
cv::Point	center () const
	The central point of the object. This uses the most recent frame. More...
cv::Size	size () const
	The size of the object. This uses the most recent frame. More...

Public Attributes
size_t	oid
	A unique object ID assigned to this object. More...
std::map< size_t, cv::Rect >	fids_and_rects
	Store an entry for every frame where this object was detected. More...
std::set< size_t >	classes
	Every class detected with a threshold > 0.2. This is used to find a match in new frames. More...

Detailed Description

The position tracker uses Obj to keep information on objects that are being tracked.

This includes the frame IDs and the bounding box rectangles for the object on each of those frames. If needed (for example to draw a tail showing where the object has been) these object structures can be obtained via PositionTracker::get().

Since

May 2023

Constructor & Destructor Documentation

Obj()

DarkHelp::PositionTracker::Obj::Obj ( )

inline

Constructor.

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~Obj()

DarkHelp::PositionTracker::Obj::~Obj ( )

inline

Destructor.

Member Function Documentation

clear()

DarkHelp::PositionTracker::Obj & DarkHelp::PositionTracker::Obj::clear

(

)

Reset this object. Sets the oid to zero and removes any frames, rectangles, and classes.

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empty()

bool DarkHelp::PositionTracker::Obj::empty

(

)

const

Returns true if this object has no object ID or frame information.

first_seen_frame_id()

size_t DarkHelp::PositionTracker::Obj::first_seen_frame_id

(

)

const

Returns the frame where this object first appeared.

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last_seen_frame_id()

size_t DarkHelp::PositionTracker::Obj::last_seen_frame_id

(

)

const

Returns the most recent frame.

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rect()

cv::Rect DarkHelp::PositionTracker::Obj::rect

(

)

const

Returns the rectangle from the most recent frame.

center()

cv::Point DarkHelp::PositionTracker::Obj::center

(

)

const

The central point of the object. This uses the most recent frame.

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size()

cv::Size DarkHelp::PositionTracker::Obj::size

(

)

const

The size of the object. This uses the most recent frame.

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Member Data Documentation

oid

size_t DarkHelp::PositionTracker::Obj::oid

A unique object ID assigned to this object.

fids_and_rects

std::map<size_t, cv::Rect> DarkHelp::PositionTracker::Obj::fids_and_rects

Store an entry for every frame where this object was detected.

The key is the frame ID, and the value is the rectangle on that frame.

classes

std::set<size_t> DarkHelp::PositionTracker::Obj::classes

Every class detected with a threshold > 0.2. This is used to find a match in new frames.

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The documentation for this struct was generated from the following files:

• DarkHelpPositionTracker.hpp
• DarkHelpPositionTracker.cpp