Is it necessary to have the screen/VR features of the Occulus Rift to do the facial expression recognition? Or, is data from something more lightweight, e.g. G

Is it necessary to have the screen/VR features of the Occulus Rift to do the facial expression recognition? Or, is data from something more lightweight, e.g. Google Glass, adequate to do facial recognition? Looking forward to better virtual meetings, less flying.