A wearable augmented reality system for navigation using positioning infrastructures and a pedometer

This paper describes a wearable augmented reality system using positioning infrastructures and a pedometer. To realize augmented reality systems, the position and orientation of user´s viewpoint should be obtained in real time. The proposed system measures the orientation of user´s viewpoint by an inertial sensor and the user´s position using positioning infrastructures in environments and a pedometer. The system specifies the user´s position using the position ID received from RFID tags or IrDA markers which are the components of positioning infrastructures. When the user goes away from them, the user´s position is alternatively estimated by using a pedometer. We have developed a navigation system using the proposed techniques and have proven the feasibility of the system with experiments.