Playing Go with computer vision
by Carson Reynolds
Chris Wren uploaded a video for a system we worked on together at MERL a few summers ago. The system allows a user to play go over the internet or against a computer using a real go board. There is also an interface for learning Joseki and Fuseki.
We wrote a few short papers on the system as an example of the more general concept of using real physical objects to interact with computer systems. If you are interested in more information you might see: Minimalism in Ubiquitous Interface Design or Parsimony and Transparency in Ubiquitous Interface Design.