Spheroids as Playful Audiovisual Interface on Tabletop Display

摘要

This paper presents a playful interactive system in which players manipulate solids of revolution called spheroids on tabletop display to create audiovisual expressions and make corresponding performance. Spheroids allow four basic movements based on spinning and rolling, whose geometric and physical parameters such as the contact area, its centroid, the (angular) velocity, and the curvature of locus are recognized from the data of the sensor sheet at the display based on electromagnetic induction. These parameters are effectively used for generating audiovisual expressions in real-time that match the movements. We developed an audiovisual content that integrates these functionalities and enables players to create their own expressions by manipulating a set of spheroids.