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Published on Jan 31, 2014
Interactive surfaces like diffuse illumination tabletops (DIT) identify and track objects using multiple techniques like shape and color recognition, fiducial markers, electronic components, and RFID tags. However, tracking becomes more complex when dealing with multiple small objects of similar form. We propose to use tangible mediators for integrating such objects to tabletops. This paper reports on our initial explorations of mediated tabletop interaction consisting of a mediator prototype and a design space definition. We built a mediator, the Rabbit, a device that translates thevalue of an RFID tag into a visual 2D code. The Rabbit rests on the interactive surface, holds the object, reads its passive RFID tag, and converts the read value into a 2D code that can be read by the DIT's built-in camera. When handling multiple objects, the Rabbit iterates through the generated 2D codes. Through a series of participatory activities with end users (molecular biologists), we collected initial feedback from participants and defined a design space for mediated tabletop interaction.
This is a demo of our first Rabbit implementation, it converts the value of an RFID-tagged object into a 2D code that can be read by a tabletop - in this case the Microsoft Surface.
Cite as: Hincapié-Ramos, J.D., Tabard, A., and Bardram, J.E. 2011. Mediated tabletop interaction in the biology lab: exploring the design space of the rabbit. In Proceedings of the 13th international conference on Ubiquitous computing (pp. 301-310). ACM.