Blob tracking and labelling

Silently I'm working on a project for which I need some stable blob tracking and labelling. I googled around but didn't find blob trackers and labelling code which takes into account different matching algorithms. I'm working on this piece of code which will follow blobs and try to rematch them even when the blob went out of the frame for a couple of frames. It uses openCV and the blob tracking code is created as an addon for openFrameworks. It still needs some tweaking, though when the blob detection / segmentation is good I, almost all blobs are labelled correctly. I tested this with a video of around 1000 frames and I didn't find a mismatch!