Abstract
Augmented Surface Environments are becoming more and more popular and will change the mode of communication. Previous work has shown that projector based AR technology can be used to enhance face-to-face collaboration. We have implemented various interaction metaphors that have been integrated in an augmented tabletop setup. We describe our system in detail and present user feedback from people who have used the application. We also provide general design guidelines that could be useful for others who are developing similar face-to-face collaborative AR applications.