TLD Predator Video Tracking Software

Pretty neat tracking system; however, its applicability to your project depends on the level of complexity that you need. This is further developed from a straight forward tracking device and a cursory glance indicates that it uses machine learning techniques to classify and detect objects.

If you are just looking for a basic tracking device then use a straight-forward Kalman filter or a Particle filter if it is multiple-object tracking. Both are relatively easy to implement.

If you machine learning techniques such as random forests and semi-supervised learning then fire away with Predator. Frankly speaking, as someone who has decent enough experience with machine vision I can tell you that implementing that won't be that easy even with the source code.