A Unifying Input Framework for Multi-Touch Tables

With the uprise of multi-touch table systems, more and more applications which have to deal with multi-touch input, sometimes even multi-user input, are being developed. The development of such applications often introduces the use of frameworks designed to deal with multi-touch input from a specific type of multi-touch table. In cases where no frameworks are available for a specific kind of multi-touch table, it might even be necessary to handle the table’s input through a low level API. This, in turn, requires additional layers to be implemented in order to be able to deal with the input in an abstract, usable way. In this paper an unifying input framework is presented which abstracts away from the hardware limitations of different kinds of touch tables and provides a general interface for handling multi-user, multi-tangible, multi-touch interaction.