OpenStreetMap
"UAV could map archeological sites in a fraction of the time currently required"
Publiée par mapryan le 8 août 2012 en English.One of these could be really useful for all those areas with no or poor satellite imagery coverage http://www.gizmag.com/suave-archeological-aerial-mapping/23626/?utm_source=Gizmag+Subscribers&utm_campaign=7f35e162ad-UA-2235360-4&utm_medium=email
Discussion
Commentaire de Pink Duck le 8 août 2012 à 13 h 56
Presuming the cost is less than that of purchasing satellite imagery.
Commentaire de mapryan le 8 août 2012 à 20 h 48
True
Commentaire de CloCkWeRX le 14 juillet 2013 à 8 h 36
https://www.youtube.com/watch?v=n1E_CPxR3LA is probably quite interesting for you