Live Action Integration

So I am working on a sequence for my video workshop in which I use a background plate of a helicopter shot and insert a 3D tower into the scene.

I found this information about using the program Nuke to motion track the live action footage and create camera keyframes for maya.

Check it out:

http://www.creativecrash.com/maya/tutorials/import-export/c/using-nuke-6-x-3d-tracking-data-inside-of-maya