Use of tangible marks with optical frame interactive surfaces in collaborative design scenarios based on blended spaces

Abstract

In this paper, we present new methods of interaction with multi-touch surfaces implemented with optical frames by using tangible elements. Since interactive surfaces typically allow simultaneous detection of a large number of touch points, we propose the use of physical objects (which can be 3D printed) to reproduce different touch patterns, similar to using finger gestures on the table. These patterns are identified and recognized by our system and used to calculate the position and orientation of the mark on the surface. We propose the use of these tangible elements as a method to manage information locally in an interactive surface and also to exchange information between different surfaces to support collaborative design work.