[Osmf-talk] Notes & Bing Imagery

Laposte moine972 at laposte.net
Sat Dec 7 21:04:17 UTC 2013

Le 07/12/2013 10:37, Oleksiy Muzalyev a écrit :
> Hi Pierre,
> Thank you for the information.

You can see more result from IOM and C-OSM.HA team,

>From IOM

And the Mapping party over Onaville North of Haiti, done by COSMHA
(COSMHA Report in French)


In 2014 COSMHA will be able to make their own mission after several
training and mission in the field with IOM and Drones adventure.

> I could distinguish some people and cars on this aerial imagery from the
> elevation of 150 meters, but they are completely unrecognizable.
> I guess from the approx. 100 meters altitude, recommended by
> regulations, it will be about the same. It is important for privacy.
> I watched the video on the web-page and noticed that during these six
> days there were clouds and wind (moving tree branches) in Haiti. The
> team arrived for the six days visit and had to fly no matter what.
> Still the quality of the imagery is amazing. I tried to map with it,
> mapped a soccer pitch near Minustah Camp
> http://osm.org/go/YeQzpQehl--?m= , which is on the Drone imagery, but
> not on satellite's.
> Haiti is a particular case, as there is a lot of destruction in urban
> areas. It would be interesting to create a similar test project in an
> usual city.

> Even if during one flight we take only 1 - 10 square kilometers of
> imagery, the area of an average city is 200 - 300 square kilometers. So
> it is hard, but doable.

It important sometime to focus on one area, to catch the urban expansion.

> And we can weight for a calm sunny day for flying. I mean there will be
> less vibration of the drone camera on a quiet day, so the quality of
> photos will be better, and the risk of a crash is less.

For me the risk of crash is due mainly to an human error.

> I understand that the aerial imagery layer created in this way could be
> copyrighted © OpenStreetMap contributors, as the map itself, and shown
> to map users.
> Not only for adding notes, but even if someone wants to see an aerial
> view of a certain place. There could be a button on the map - switch to
> aerial view.
> The imagery for the whole city could be created once, and then only
> districts, where there are changes, like construction of new buildings,
> roads, etc. are updated.
All the best FredM

> brgds
> O.M. (Alex-7)
> On 06.12.2013 16:28, Pierre Béland wrote:
>> ... The average flight elevation was 150
>> meters, which gives a precision of about 4cm. ...
>>> http://www.droneadventures.org/2013/05/29/haiti/
>>> In JOSM WMS-TMS Preferences, in the Imagery providers list, look for HT
>>> Imagerie de drone, Haiti (ie UAV imagery fo Haiti).  Look for Limonade,
>>> Haiti. You will see very impressive results. ...
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