Multi-object tracking

[mfoody]

Hi,

I've been looking through the forum for information on tracking multiple objects. It's pretty clear how to get all the objects in any given frame. To go beyond that, however, the advice has been "implement your own tracking algorithm." Could you please provide a high-level overview of a simple multi-object tracking algorithm (or even some suggestions on where to start - e.g. links to helpful articles). For example, with OptiTrack, what's the simplest way to determine which object from the previous frame matches a particular object in the current frame?

Thanks,
Mike

[Birch]

The traditional ways of implementing this typically involve identifying the objects based on x,y coordinates, size, and sometimes trajectory. There may be some sample code/algorithms out there - touchlib might be worth reviewing.