A screenshot of the mobile front-end component of the RescueMe mobile augmented reality system. The mobile component is running on an Android smart phone. (a) Viewing 3D map, (b) Viewing 2D map. A screen shot of the RescueMe prototype is displayed in Figure
1. It illustrates how AR-assisted guidance is implemented on the mobile phone. AR tags on the phone indicate the exit path and the remaining distance to be covered by the user to reach the exit door.