Miroir Aux Silhouettes (Mirror Space) is a tele-presence work created by HeHe (Helen Evans and Heiko Hansen) which allows its users to both observe themselves and communicate with others remotely in a non-verbal way. The work (the following is extracted from HeHe’s website and translated):

consists of a screen with a micro-camera centrally placed. The image on the screen is a double image of both local and remote user communicating : an ultrasonic sensor detects the distance of each user from the screen (mirror) which affects the resulting image in real time. The reflection of each active space is superimposed on the surface of the mirror and transforms the visual contact between two users.

Work originally seen in Responsive Environments Architecture, Art and Design.

For related work see World Bench, Intimate Transactions and generally the work of Paul Sermon.