[Talk-GB] bing image alignment

Colin Smale colin.smale at xs4all.nl
Fri Sep 13 13:22:43 UTC 2013



Cm-level GPS accuracy is coming within our grasp... My attention was
recently drawn to this: 

http://www.kickstarter.com/projects/swiftnav/piksi-the-rtk-gps-receiver
[2] 

On 2013-09-13 15:06, OpenStreetmap HADW wrote: 

> I don't think I would trust commercial GPS much below 5m unless it was
> 
> averaged over at least an hour, with a clear view of the sky
> (reflections off builidngs could systematically distort the position
> solution - see http://wiki.openstreetmap.org/wiki/Accuracy#Systematic_errors [1]).
> Where I've looked into calibrating against GPS I've tended to find
> that there are good places that are accurately locatable on Bing where
> you can sit with GPS for a long time without looking suspicious, and
> which are near to points of interest and have a clear view of the
> sky.



Links:
------
[1] http://wiki.openstreetmap.org/wiki/Accuracy#Systematic_errors
[2]
http://www.kickstarter.com/projects/swiftnav/piksi-the-rtk-gps-receiver
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