Augmented maps

Printed maps are a very useful means to convey detailed information. However, a new map needs to be printed whenever  information changes. Computer-based maps on a screen provide one alternative - they can change dynamically to represent a changing situation - but they're not as easy to use.

Now, University of Cambridge researchers Dr. Tom Drummond, Dr. Gerhard Reitmayr and Ethan Eade have developed a system that combines the benefits of printed maps with those of computer based dynamic maps by allowing printed maps to be augmented with digital graphical information.

The team's dynamic paper map system comprises a camera and a projector looking down at the paper map from above. The system interactively tracks the map using the live video stream captured by the camera. Once the locations of the maps are known, the projector displays extra information directly onto them.

The system also tracks user interface devices which can be placed on the map and which enable access to information that is linked to locations on the map.