[OSM-talk] Mapping and surveying long road tunnels

Simon Hewison simon at zymurgy.org
Thu Mar 22 14:50:26 GMT 2007

Raphaël Jacquot wrote:
> or, we could use IMUs and some kalmann filtering

or video surveying. Marking key points on video frames from twin video 
cameras (stereo vision) with the same focal length will get you a distance 
of point on edge of tunnel from point of view. Couple with a distance 
measurement from wheel counter and you have a quite clever system.

This is partly what those geospatialvision and the amazon mechanical turk 
slaves do.

Simon Hewison

More information about the talk mailing list