Power poles, wires, wind, trees are usual dangers for multirotor
aircraft too. There is also an issue of a large bird attack. These risks
could be mitigated via sport flying.
I usually train sport flying at a stadium very early in the morning when
there no people there. I have got a small trainer quadcopter, several
foldable Air Gates, and Air Flags. There are also gates at an American
football field with high poles, which are good for learning to fly in
narrow spaces.
I have an impression that birds being excellent fliers themselves can
immediately see the level of piloting skills of a RPAS (Remotely Piloted
Aircraft System) pilot. If they see that it is an friendly experienced
pilot they usually do not attack. In any case I regularly train diving
and other BFM <https://en.wikipedia.org/wiki/Basic_fighter_maneuvers> .
In addition to aerial images I also film aerial video. Video provides an
additional information. For example, recently I filmed a medieval
Bilhorod-Dnistrovskyi fortress [1] in Ukraine. I upload a video to
Wikimedia, add a video link to the Wikidata page, and add wikidata tag
to the OSM map for this object.
Wikimedia accepts videos only in open OGG and WEBM formats.
Unfortunately, some quality is always lost during conversion to these
formats. You can see the same HD video at youtube and compare the
quality [2]; I tried all convertors which I could find for Mac.
[1] https://en.wikipedia.org/wiki/Bilhorod-Dnistrovskyi_fortress
[2] https://youtu.be/C-kQjmzlY7A
On 27/07/16 23:42, [email protected] wrote:
Yes, ballons and kites is a good community-engaged method; in my
particular case we face problems with the public-lab-ballon-kit
because irregular power poles/wires at a low height, plus some wind
present during the activity, so it wasn't possible (and a little
insecure). Regarding stiching it was not so easy to deal with 89
pictures using the MapKnitter (version 1 1/2 years ago), so by the
moment aerial orthophotomosaics software seems to be the option.
Another point regarding ballons is the cost of the helium.
About security (and mobile apps) you should consider to create a
previous relationship with the community, so start with workshops or
other activities. In my particualr case for the replication in other
slums in Colombia, the conclution to my proposal was "not
recommended". If your focus is catastral, ultra-high-res aerial
imagery is the better way, mobile apps can create ancyllary pictures,
very useful indeed
<https://hotosm.org/updates/2016-07-27_introducing_the_mapillary_humanitarian_mapping_kit_in_partnership_with_hot>.
_______________________________________________
talk mailing list
[email protected]
https://lists.openstreetmap.org/listinfo/talk
