Kevin P McAuliffe shows a couple of different approaches for using the 3D Camera Tracker in After Effects CS6 with a two part look at getting a great 3D match move from professionally shot footage as well as amateur hand-held shots as well.

Kevin P McAuliffe shows you how great the After Effects 3D Camera Tracker is, but he takes his tutorial two steps further by adding a keyable object into the scene that interacts with text, as well as giving the elements in the scene a bit of finesse to make you think they were part of the scene from the beginning

Kevin also shows some other techniques in After Effects including using the Rotobrush tool, with a few tips to have added elements look as if they were part of the scene. Check out the tutorial for Using the 3D Camera Tracker in After Effects here.