Motion control rig or 3D zoom?

Hi all,
I am always confused when I see a typical green screen composite with a dolly push in/pull out with a set extension.

Does anyone know if this is "usually" done on cards in 3D space or a motion control rig?

I don’t see any tracking markers on the green screen to suggest a 3D track

The sill image shot is the last shot in the video http://aimediaserver.com/studiodaily…480&height=310

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