Facial Recognition features: primary user - use depth sensing feature to sense the user The user nearest to the screen must be the primary user There can be multiple primary user in case of multi-user system secondary user

OPTIONAL

Speech Recognition: Use speech to determine registered user Important feature if the camera is broken(Safe to register speech as well) Sence whether the person is real and the speech is not a recording How to determine if a speech is not a recording?

Scale it to Xarvis