Medusa: A Proximity-Aware Multi-touch Tabletop

We present Medusa, a proximity-aware multi-touch tabletop.
Medusa uses 138 inexpensive proximity sensors to:
detect a user's presence and location, determine body and
arm locations, distinguish between the right and left arms,
and map touch point to specific users and specific hands.
Our tracking algorithms and hardware designs are described.
Exploring this unique design, we develop and report
on a collection of interactions enabled by Medusa in
support of multi-user collaborative design, specifically
within the context of Proxi-Sketch, a multi-user UI prototyping
tool. We discuss design issues, system implementation,
limitations, and generalizable concepts throughout the
paper.

Category:

Science & Technology

Tags:

• tabletop
• context-aware
• gestures
• touch
• bimanual
• microsoft surface