This is unfortunately (as it sounds like an interesting project) not possible. The Wikitude SDK always uses the input from the built in device camera as background for the AR content.
about 5 years ago
I am trying to make a very simple game for the AR Drone 2.0. For starters, the idea is to restrict the drone to face one direction and also restrict the controls to the user just to up, down, and left right strafe. The user has to dodge incoming obstacles, fire at them and collect pick-ups.
For now, I need to bridge the drone video feed to Wikitude.