Bits and Bricks Tangible Interactive Matrix for Real-time Computation and 3 D Projection Mapping

The proliferation of projection mapping and computer vision techniques have made it possible to create a multiplicity of dynamic, illuminated environments that adapt to user intervention. This paper describes a unique system for an illuminated, machine-readable matrix of objects that performs real-time computation and dynamic projection-mapping. Illuminated, tangible-interactive matrices have immediate applications as collaborative computation tools for users who want to leverage matrix-based mathematical modeling techniques within a friendly and accessible environment. The system is designed as an open source kit of both off-the-shelf items (such as Lego) and components that are inexpensively fabricated with standard equipment (such as laser cutters). This paper outlines (i) a system of hardware and software for the tangible-interactive matrix, (ii) case study applications of the tangible interactive matrix in various disciplines such as urban planning and logistics, and (iii) discussion of possible directions for future research and experimental design. Keywords— Interactive Displays; Tangible User Interface; Projection Mapping; Computer Vision; Decision-Support Systems; Collaboration; Lego