[OSM-newbies] Video mapping (was "Fastest Driving Pattern")

Woll Newall woll at 2-islands.com
Thu Nov 26 13:08:44 GMT 2009


Hi Mike - Could you give us some tips on doing video mapping? How do  
you link the GPS track to the video frames?

I posted a message in the main talk list a few days ago, but got no  
replies.

Here is my previous posting, to give some background:
--------
Video mapping in JOSM? Was I dreaming?

My brain remembers reading something (I'm guessing in the OSM-talk  
list) about
video mapping with JOSM, but I now can't seem to find anything about
it in the JOSM help/JOSM-Dev list/OSM-talk list. There's a few wiki
pages that (vaguely) mention video mapping but nothing detailed/
specific on how to do video in JOSM (except some idea to extract each
frame of the video out into a JPEG file and use the photo-mapping
technique, which seems too laborious to be useable).

Can anyone point me to the thing my brain thinks it read? I think
there was mention of the software using a Java library that could read
AVI files, that would require the use of a particular codec, so I'm
guessing that it was JOSM and not Potlatch/Merkaartor.

In the absence of the info I was thinking of, can anyone suggest ways
to utilise video in mapping?:
I have video (AVI) from a vehicle that is synchronised to a GPS track
(GPX).
So, I was imagining that I could at least read in the track to an OSM
editor and the video into a video player, and then look at the
timestamps on the track and manually view the correct frame in the
video in the video player (the video has timestamps on it). And
hopefully then be able to easily move backwards/forwards along the
track, whilst showing the timestamps. However, I can't seem to find a
way of seeing the track timestamps in JOSM. I did find a way of
clicking on individual track points to show the track timestamps in
Merkaartor. I've never used JOSM before and only use Merkaartor 2
times, so I could have easily missed the obvious!
--------

 > From: "Mike N." <niceman at att.net>
 >
 >  Sounds like a great setup - especially if the camera Geo-Locates  
photos,
 > or if you use JOSM + AgPifoj plugin.   Depending on the features  
you wish to
 > map, I have set up 1-2 video cams in the car since I don't have a  
copilot,
 > and cannot look at, or touch them while driving.   A digital cam  
with video
 > often can take good enough video for this purpose.




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