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Chair for Computer Aided Medical Procedures & Augmented Reality
Lehrstuhl für Informatikanwendungen in der Medizin & Augmented Reality

M. Kaltenbrunner, F. Echtler
The TUIO 2.0 Protocol: An Abstraction Framework for Tangible Interactive Surfaces
Proceedings of the ACM on Human-Computer Interaction - EICS (bib)

Since its introduction in 2005, the TUIO protocol has been widely employed within a multitude of usage contexts in tangible and multi-touch interaction. While its simple and versatile design still covers the core functionality of interactive tabletop systems, the conceptual and technical developments of the past decade also led to a variety of ad-hoc extensions and modifications for specific scenarios. In this paper, we present an analysis of the strengths and shortcomings of TUIO 1.1, leading to the constitution of an extended abstraction model for tangible interactive surfaces and the specification of the second-generation TUIO 2.0 protocol, along with several example encodings of existing tangible interaction concepts.
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