Spatial Authentication on Large Interactive Multi-Touch Surfaces

Johannes Schöning, Institute for Geoinformatics, University of Münster, Germany
Michael Rohs, Deutsche Telekom Laboratories, TU Berlin, Germany
Antonio Krüger, Institute for Geoinformatics, University of Münster, Germany


Abstract:

The exploitation of finger and hand tracking technology based on infrared
light, such as FTIR, Diffused Illumination (DI) or Diffused Surface
Illumination (DSI) has enabled the construction of large-scale, low-cost,
interactive multi-touch surfaces. In this context, access and security problems
arise if larger teams operate theses surfaces with different access rights. The
team members might have several levels of authority or specific roles, which
determine what functions and objects they are allowed to access via the multi-
touch surface. In this paper we present first concepts and strategies to
authenticate and interact with subregions of a large-scale multi-touch wall.