[joshu]

do you think it would be possible and/or worth it to reconstruct a automotive road course? this is something i've always wanted to do. there's a ton of video online (though usually shot from inside the car.)

the one i spend the most time at is pretty flat, though. i suspect the green hills are hard to get a match on? here is an example: http://www.youtube.com/watch?v=EyZcERAlBeE

[rmc]

I often go on rides around mountainous areas on my motorbike with a video camera attached to my helmet (some videos here http://www.youtube.com/user/slashtomeu/videos ). Since I carry a GPS as well, I've always wondered if I could reconstruct a 3D model of the landscape I ride around in.