Multi touch wall

Our multi touch wall is a 2 by 1 meters touch sensitive surface, where one can interact with the projected media with one's fingers, hands, as well as more people at a time. We programmed a set of simple applications, where one can paint with hands, navigate a mind-map collaboratively, for example. We built this interface so we can learn and develop interesting and new kinds of contents for such interfaces, which are becoming more and more popular nowadays.

Our aim

Apple iPhone and Microsoft Surface have recently brought this technology into the spotlight, though research and development in connection with multi-touch have been around since the ’80s. Our aim is to create a prototype through which we can research and develop new modes of users’ interaction. These interfaces have a great transforming potential for larger scale collaborative public interfaces, as well as for cell phones.

This technology has been in the spotlight in the recent months as several products have claimed some sort of authorship about it, even tough research about multi touch has been around for decades.

How does it work?

Components can be obtained easily and at little cost, and one can easily build a small prototype from them. The touch of fingers on the surface is tracked by infrared light, which is transmitted through a camera and processed by a computer. The use of the multi-touch-wall is as simple as handling a touch screen, or even simpler with the help of this new kind of intuitive interaction.

Current state

We have made two prototypes: one is the size of an A4 paper, and the other is a 2 by 1 metre wall. On these surfaces, one can run simple proof-of-concept applications like those you could already see at the opening. As for further research, we must improve this touch-sensitive system. The next step will be the implementation of a multi-touch interface for our KIBU projects ZUI and Animata.

Images from our first sample applications (built with processing)

Drawing nest to save the chicken

Gravity fields

Generating sound

Participating researchers

László Bácsi, Tamás Bagi, Péter Halácsy, Péter Németh, Gábor Papp, Bence Samu, Adam Somlai-Fischer, András Szalai