org.opencv.tracking

Class Tracker

java.lang.Object

org.opencv.core.Algorithm

org.opencv.tracking.Tracker

Direct Known Subclasses:

TrackerBoosting, TrackerCSRT, TrackerGOTURN, TrackerKCF, TrackerMedianFlow, TrackerMIL, TrackerMOSSE, TrackerTLD

public class Tracker
extends Algorithm

Base abstract class for the long-term tracker:

Field Summary

Fields inherited from class org.opencv.core.Algorithm

nativeObj

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Tracker(long addr)

Method Summary

Modifier and Type	Method and Description
static Tracker	__fromPtr__(long addr)
protected void	finalize()
boolean	init(Mat image, Rect2d boundingBox) Initialize the tracker with a known bounding box that surrounded the target
boolean	update(Mat image, Rect2d boundingBox) Update the tracker, find the new most likely bounding box for the target

Methods inherited from class org.opencv.core.Algorithm

clear, empty, getDefaultName, getNativeObjAddr, save

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Tracker

protected Tracker(long addr)

Method Detail

__fromPtr__

public static Tracker __fromPtr__(long addr)

init

public boolean init(Mat image,
                    Rect2d boundingBox)

Initialize the tracker with a known bounding box that surrounded the target

Parameters:

image - The initial frame

boundingBox - The initial bounding box

Returns:

True if initialization went succesfully, false otherwise

update

public boolean update(Mat image,
                      Rect2d boundingBox)

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

Parameters:

image - The current frame

boundingBox - The bounding 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)

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Algorithm

Throws:

Throwable