Using an autonomous cube for basic navigation and input

Authors:
Kristof Van Laerhoven;Nicolas Villar;Albrecht Schmidt;Gerd Kortuem;Hans Gellersen
Affiliations:
Lancaster University, LA1 Lancaster;Lancaster University, LA1 Lancaster;Lancaster University, LA1 Lancaster;Lancaster University, LA1 Lancaster;Lancaster University, LA1 Lancaster
Venue:
Proceedings of the 5th international conference on Multimodal interfaces
Year:
2003

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Abstract

This paper presents a low-cost and practical approach to achieve basic input using a tactile cube-shaped object, augmented with a set of sensors, processor, batteries and wireless communication. The algorithm we propose combines a finite state machine model incorporating prior knowledge about the symmetrical structure of the cube, with maximum likelihood estimation using multivariate Gaussians. The claim that the presented solution is cheap, fast and requires few resources, is demonstrated by implementation in a small-sized, microcontroller-driven hardware configuration with inexpensive sensors. We conclude with a few prototyped applications that aim at characterizing how the familiar and elementary shape of the cube allows it to be used as an interaction device.