I just want to keep track of the object I selected.

*I just want to keep track of the object I selected.

frame = readFrame(obj.reader);

imshow(frame);

title('Takip etmek istediğiniz nesneyi seçin ve Enter\a basın');

rect = getrect; % Kullanıcının seçtiği dikdörtgenin koordinatlarını alır.

close; % Seçimden sonra pencereyi kapatır.

% Seçilen nesnenin sınır kutusunu global değişken olarak kaydedin.

selectedBbox = rect;

*I used the following code for this, but I do not get correct results in object tracking. I used Kalman Filter for this.

[Walter Roberson]

There is a weakness in the approach of only tracking a selected object. You normally run a detection filter, and then select the detected object that is closest to the previous location of the selected object, and declare that to be the new object location. However, if two objects meet or pass very close together, the object detected as being closest to the previous object is up to chance, and you might end up following the wrong one.

You can reduce the problem by tracking all of the objects and doing motion prediction; then if two pass closely together you have a better chance of correctly guessing which object corresponds to which previous object.

Note that the motion prediction approach still struggles when two objects bounce off of each other.

[Hasan]

I did what you said and I follow all the objects and I get partially correct tracking, but as I said, the purpose of my project is to follow only the object I choose. What more can I do for this? I tried many methods but could not achieve results. Thank you.

[Walter Roberson]

Once you have selected the initial object, then in subsequent frames, you can mask out the frame beyond a reasonable maximum movement velocity, before rescanning for objects. You can also deliberately discard the tracking information about objects that are more than maximum movement velocity away from the object of interest.

Answer 1

[Image Analyst]

The Computer Vision Toolbox has some tracking capabilities. Look them up.