Tracking multi objects with different size based on data association

In this paper, a recursive multiple objects tracking method based on data association is proposed. Firstly, an adaptive tracking window is designed for the scale changes of the object in motion scene. Then a data association method is proposed for multi-object tracking. The tracking window and the observation data of the same object at different time as well as the different objects at the same time are all associated to achieve robust tracking of the objects with different number and size. Experimental results show that the proposed multi-object tracking mechanism can deal with complicated situations such as object occlusion, merging, separating, appearing and disappearing.