[OSM-dev] practical usage of DJI Phantom 3 Advanced quadcopter for 3D mapping

[Oleksiy Muzalyev]

Hi,

This aerial image was made on March 8, 2016, in Odessa, Ukraine 
(Moldavanka settlement). Altitude 150 meters, the wind at that day was 6 
m/s, gusts up to 8 m/s (28 km/h, 17 mph). The limit for Phantom 3 [1] is 
10 m/s. It is the full size image from Phantom 3 Advanced:

https://commons.wikimedia.org/wiki/Category:Moldavanka_(settlement)#/media/File:Moldavanka-ODS-1.JPG 
<https://commons.wikimedia.org/wiki/Category:Moldavanka_%28settlement%29#/media/File:Moldavanka-ODS-1.JPG>

This image size is 4,000×3,000 (4.82 MB), so I could zoom, count 
building:levels, and add them to the OSM for quite a few buildings.

The weather on this day was not perfect for aerial photography as there 
was a strong wind with haze from the sea, still the images came out 
sharp enough.

I noticed that after adding the building:levels tag to a building it is 
rendered at maps.me <http://maps.me/en/home> application for smart-phone 
with the correct 3D height.
A large number of such aerial images in all directions is produced 
during one flight, so a large area is covered.
One more advantage of the Phantom 3 is that the geographical coordinates 
are added to the JPGs photos automatically and precisely,
as the aircraft has the GPS&GLONASS system and a compass.

DJI Phantom 3 Advanced became more affordable, as DJI began to sell the 
new Phantom 4 (which, by the way, has got even more advanced camera and 
stabilization system).

[1] http://www.dji.com/product/phantom-3-adv/info

Best regards,
Oleksiy
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