Augmented Reality

Is there a way with the unreal engine 4 to render AR with ‘see through’-HMDs? Today tried the nVisor ST50 for VR, but I was wondering how I would go about rendering AR with it, since I wouldn’t need a video-signal, but rather only render an object for example, without any surrounding. Maybe the background is just supposed to be black and that’s it. I don’t know.