Abstract

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Multi-touch interaction techniques are becoming more widespread because of new industrial initiatives to make this hardware available and affordable for the consumer market. To cope with the diversity in hardware setups and the lack of knowledge about developing generic multi-touch applications, we created a framework, Eunomia, for abstracting the hardware from the software and to enable software developers to easily develop interactive applications taking advantage of multitouch interaction. We describe our first set of applications created on top of this framework that are targeted for public spaces. During the deployment of these applications, we were able to observe users that are confronted with multi-touch technologies in a public space.

In this paper we report on our work to develop a novel input technique for a digital paint system. Using a brush with infrared (IR) light emitting fibers, we were able to create a natural paint interface on an interactive table. This IR-brush adds two important properties to our paint environment: haptic feedback and an accurate brush footprint. The modified brush approaches the haptic feedback of the traditional paint brush. The use of IR-light in the brush enables tracking of the contact area of the brush on the interactive table. Informal usability tests show that our digital paint environment offers an intuitive interface and contributes to an enhanced user experience in digital painting.