Multi-Touch Experiments

MultiTouchTable and Visual Reaction
Bauhaus-Universität Weimar, Interface Design and Media Architecture, summer term 2010.

Multi-touch applications enable users to interact with more than one finger on a surface. Beyond that, the reacTIVison framework allows for mixing it with tangible objects that have fiducial codes attached.

MultiTouchTable is my own prototype of a multi-touch table. The goal was to make it easily transportable what I achieved due to a modular design approach. I was faced with several challenges, regarding the physical construction of the table, the materials used, and the technologies that run the system. Get it to run was not that easy for as designer... Thanks to the Community Core Vision (abbreviated CCV) and the open source community, I was finally able to built this working prototype. I have done the first tests within a cardboard box, and for budget reasons, I used a simple web cam with low resolution and put an exposed negative film in front of the lens for seeing only infrared reflections via the CCV v1.3 tracking software.

Project context_ Project module 'Interface Design IV', Bauhaus-Universität Weimar, summer term 2010

Supervision _ Jens Geelhaar
VisualReaction is an interactive application for multi-touch tables with reacTIVision-based tracking. It analyzes an audio-stream and enables the user to interact with geometrical shapes and colors. It is an experiment and shows a potential use case for VJs. The reactable project meant for collaborative music making inspired me very much. The application has been written in Processing. For a more intuitive expierence, I have also created special physical objects (so-called 'fiducial markers') that are to be used for influencing the visuals on the multi touch table. With these tangibles, the user can influence different parameters, such as color, brightness, shape, or radius of the projected graphics.

Project context _ Seminar 'Please Touch: Exploring physical computing on a table', Bauhaus-Universität Weimar, summer term 2010

Supervision _ Reinhard König, Jens Weber, and Andreas Wolter

Project website _
Sequenze visualizing high hats, snare and bass drums