3 Dongpyo Hong Julian Looser Hartmut Seichter Mark Billinghurst Woontak Woo 2008 ISUVR 2008 Korea IEEE 75-78 978-0-7695-3259-2 AR Authoring Sensor-based Interaction U-VR In this paper, we propose a sensor-based interaction for ubiquitous virtual reality (U-VR) systems that users are able to interact implicitly or explicitly with through a sensor. Due to the advances in sensor technology, we can utilize sensory data as a means of user interactions. To show the feasibility of the proposed method, we extend the ComposAR Augmented Reality (AR) authoring tool to add support for sensor-based interaction. In this way the user can write simple scripts to rapidly prototype interaction with virtual 3D contents through a sensor. We believe that the proposed method provides natural user interactions for U-VR systems.