This Image of the Week includes two images for the same great price.
OpenStreetMap contributor Mala holds the OSMcopter, a kite used to
collect aerial imagery. OSM contributor balrog-kun took the photo and
created the imagery server.
The OpenStreetMap logo printed on a 350 cm (11.5 ft) Sutton
Flowform-type kite made for making aerial imagery. These kites are
produced by IKAR in Poland (among others). On the right is an example
picture taken on 2010-10-20 over Praga district of Warsaw
See more details in the full size photo or on the aerial imagery
server. I keep looking for the pilots on the ground.
http://ooc.openstreetmap.pl/kap-warsaw.xhtml?lat=52.2486&lon=21.091&z=19
This is a Featured image, which means that it has been identified as
one of the best examples of OpenStreetMap mapping, or that it provides
a useful illustration of the OpenStreetMap project.
If you know another image of similar quality, you can nominate it at
Very nice. Anyone know what they used to georef the photos? GPS used?
geografa: So far I used ground control points manually placed against Yahoo imagery or GPS traces. Knowing the lens properties, you need three control points per picture to determine camera position and orientation. I considered attaching a GPS, but this only saves you one control point — you still need to add two points to caluclate orientation.(You can see that the seams between pictures are not always exact, perhaps I should have used more GCPs or placed CPs between pictures, instead of between picture and map everytime — this things are still something to work on)