[OSM-talk] Laser scanning

[Robert Scott]

On Friday 31 Mar 2006 12:49, Jim Ley wrote:
> well I was more thinking bike and stopping...  anyone got an external video
> mount for a car - don't really want to do it through a screen, that's also
> doable, although video cameras are going to be giving less accurate time
> stamps I guess so hooking up the video feed to the data might be a bit of a
> pain.

It would be quite possible to use a laptop / small computer with a USB GPS 
receiver and a USB webcam (people like MSI make quite good quality ones these 
days with glass lenses) and interleave* the image data with the NMEA stream.

While we're looking at specialised homebrew data capturing systems, I've 
previously thought that you could make a similar setup where you're able to 
hit buttons/keys to mark any special points. For instance, if you were using 
a laptop, you could go driving with a friend who you could instruct to watch 
out for speed limits and hit the appropriate buttons as you pass them. And 
you've then got speed limit data for your trip.

I've actually been looking at building a simple single board computer with a 
sirfstar III for this and other purposes. I don't have time to work on it at 
the moment, though.


robert.


* - I say interleave, but of course I just mean being able to tag the images 
with the most recent fix from the NMEA.