Kalman filter and bounding box tracking

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Kostas Epp
Kostas Epp 2015-2-9
编辑： Dima Lisin 2015-2-9
Hi all! I hope that someone can help me with that!
I have a video that shows a face. Firstly, I detect the region of the eye from a face. The detection gives me a boundind box with [x,y,height,widht] coordinates. So now, i need KALMAN filter to track this bounding box.
Is it possible with kalman or should i use another tracker? Also i need this tracker to be in real time.
Thanks in advance!

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采纳的回答

Erik S.
Erik S. 2015-2-9
Hi,
Do you have computer vision toolbox?
There is vision.KalmanFilter method there you can use.

更多回答（2 个）

Kostas Epp
Kostas Epp 2015-2-9
编辑：Kostas Epp 2015-2-9
Yes of course i have the computer vision toolbox. Basically, i found how to give as input the bounding box as input but after the first loop the position [x,y] is lost. How can i have this point of the face tracked all the time???
Dima Lisin
Dima Lisin 2015-2-9
编辑：Dima Lisin 2015-2-9
The easiest way to use the Kalman filter is to track the centroid of the eye. If bbox is your bounding box, then you can compute the centroid as bbox(1,2) + bbox(3,4) / 2. Please see the Using Kalman Filter for Object Tracking example for how to track a single object. For tracking multiple objects using the Kalman filter, see the Motion-Based Multiple Object Tracking example.

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