This 1997 video from the MIT Media Laboratory shows the Distributed STIVE system. STIVE stands for Stereo Interactive Video Environment and refers to the computer vision system developed for upper body 3D tracking. DSTIVE builds on that by creating a tele-presence demo. Marc Lebovitz worked on DSTIVE. Ali Azarbayejani was primarily responsible for STIVE, but many people worked on STIVE or its predecessors, including some or all of these people: David Backer, Trevor Darrell, Michael Johnson, Ken Russel, Thad Starner and Christopher Wren. The work took place ion Sandy Pentland's Vision and Modeling Group.