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- Title:
Multi-touch surfaces: A technical guide
- Document type:
- Zeitschriftenaufsatz
- Author(s):
- Schöning, Johannes; Brandl, Peter; Daiber, Florian; Echtler, Florian; Hilliges, Otmar; Hook, Jonathan; Löchtefeld, Markus; Motamedi, Nima; Muller, Laurence; Olivier, Patrick; others
- Abstract:
- Multi-touch interaction with computationally enhanced surfaces has received considerable recent attention. Approaches to the implementation of multi-touch interaction such as Frustrated Total Internal Reflection (FTIR) and Diffused Illumination (DI) have allowed for the low cost development of such surfaces, leading to a number of technology and application innovations. Although many of these techniques have been presented in an academic setting, the practicalities of building a high quality multi-touch enabled surface, both in terms of the software and hardware, are not trivial. \\ This document aims to summarize the knowledge and experience of developers of multi-touch technology who gathered at the Bootcamp on Construction & Implementation of Optical Multi-touch Surfaces at Tabletop 2008 in Amsterdam, and seeks to provide hints and practical advice to people seeking to ``build your own'' multi-touch surface. We mostly focus on technical aspects that are important in the construction of optical multi-touch surfaces, including: infrared illumination, silicone compliant surfaces, projection screens, cameras, filters, and projectors. In addition, we outline how to integrate this hardware to allow users to create a solid multi-touch surface, and provide an overview of existing software libraries for the implementation of multi-touch applications. In addition, we discuss the problem of latency introduced by the different parts of the system. A brief description of most of the common technologies to realize (multi-) touch surfaces is provided; however, the main focus is on those that utilise optical approaches.
- Keywords:
- Multi-touch surfaces, Hardware for multi-touch surfaces, Software libraries for multi-touch surfaces, Multi-touch bootcamp in conjunction with IEEE Tabletops 2008
- Journal title:
- Johannes Schöning, Institute for Geoinformatics University of Münster, Technical Report TUM-I0833
- Year:
- 2008
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