org.opencv.video

Class Tracker

java.lang.Object

org.opencv.video.Tracker

Direct Known Subclasses:

TrackerDaSiamRPN, TrackerGOTURN, TrackerMIL

public class Tracker
extends java.lang.Object

Base abstract class for the long-term tracker

Method Summary

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

Methods inherited from class java.lang.Object

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

Method Detail

__fromPtr__

public static Tracker __fromPtr__(long addr)

getNativeObjAddr

public long getNativeObjAddr()

init

public void init(Mat image,
                 Rect boundingBox)

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

Parameters:

image - The initial frame

boundingBox - The initial bounding box

update

public boolean update(Mat image,
                      Rect 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)