[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
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