We use only an RGBD camera (Microsoft Kinect),
mounted on the side of a large touch display, to enable 3D
immersive collaboration in a desirable form factor, practical
for home or office use.
• We introduce three new visualization metaphors, including
the completely new 2.5D Hybrid and 3D Tilt visualizations,
which provide to remote collaborators a sense of the
spatial relationships to each other and to their shared writing,
thereby preserving varying degrees of gaze direction,
gesture direction, intention, and proximity, for immersive
collaboration.
• We implement all three visualizations (Hybrid, Tilt, Mirror)
in a single system, and allow users to choose their preferred
visualization depending on task. To our knowledge,
this is the first implementation of any of these visualizations
in a simple and practical setup.