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<div class="moz-cite-prefix">Hello Jaak,<br>
<br>
Please, note that flying an UAV by waypoints (autopilot) is
limited by regulations and in hardware by
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No-Waypoint-Zones: <a
href="http://www.dji.com/fly-safe/category-gs"><a class="moz-txt-link-freetext" href="http://www.dji.com/fly-safe/category-gs">http://www.dji.com/fly-safe/category-gs</a></a>
, it is 8 km around all major airports.<br>
<br>
However, translational flights above a city are possible with UMX
Airplanes (Ultra Micro eXtreme Planes). The drones are very light
and small, they are made from a foam, but a powerful
flight-controler (onboard computer) make them stable and
airworthy. They can fly with the speed about 100 km/h (landing is
still hard as with all fix-wing and should be trained first on an
UAV simulator).<br>
<br>
GoPro 4 Session camera is water-sealed up to 10 m depth, but it is
not necessary for aerial shooting, neither inbuilt WiFi. I mean a
quality HD camera could even lighter than 72 grams and suitable
for an UMX aircraft.<br>
<br>
Low altitude panoramic aerial photos could be published also at
Wikipedia. For example, I published the image of the Akkerman
fortress at this article, in Gallery section: <a
href="https://en.wikipedia.org/wiki/Bilhorod-Dnistrovskyi"><a class="moz-txt-link-freetext" href="https://en.wikipedia.org/wiki/Bilhorod-Dnistrovskyi">https://en.wikipedia.org/wiki/Bilhorod-Dnistrovskyi</a></a>
. On this photo one can see not only the entire medieval fortress
and also the excavation of the Tira, an ancient Greek and later
Roman colony (in the right lower corner). And as we were told at
the conference in NYC earlier this year there will be in future a
link between Wikipedia articles, data and the OSM.<br>
<br>
Best regards,<br>
Oleksiy<br>
<br>
On 26/08/15 07:51, Jaak Laineste wrote:<br>
</div>
<blockquote
cite="mid:63C6B6B5-E1CD-4CE1-8F40-EB8A72C96BC5@nutiteq.com"
type="cite">
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<div class=""><br class="">
</div>
<div class="">Does anyone have experience using it in real life?
Speciality of UAV/drone mapping is that you cover really small
area, like with mapknitter, but you pre-process a lot. AFAIK the
typical scenario of UAV mapping is following:</div>
<div class=""><br class="">
</div>
<div class="">1. use <a moz-do-not-send="true"
href="http://planner.ardupilot.com/" class="">http://planner.ardupilot.com/</a> (or
other soft your drone maker gives/supports) to plan your
mission </div>
<div class="">2. do your mission, have thousands of images and
separate GPS log as result.</div>
<div class="">3. process your images. The most popular/best soft
for this seems to be Agisoft Photoscan Pro. It is much more than
just stitching: also 3D model needs to be created (using SfM).
It is really heavy work: for 30-minute shooting your computer
would process them for an hour or two. Not practical yet for the
cloud.</div>
<div class="">4. georeference your data. For the small area and
high resolution GPS (with error ~5m or more) is often not
enough, so you may need pre-measured control points, use good
base reference map data or other method to do it. But it really
depends on your use case. </div>
<div class="">5. Agisoft can export DEM (3D) and GeoTIFF as
result. </div>
<div class="">6. Now data sharing - my original question. I guess
I can upload my geotiff to openaerialmap or mapknitter, still
there are several concerns:</div>
<div class=""><br class="">
</div>
<div class="">a) none of the tools seems to take my DEM data, so I
cannot share it.</div>
<div class="">b) usability as OSM mapper for very small area maps
(100x100m perhaps). Openaerialmap UX question, can I find the
images easily.</div>
<div class="">c) usability as image viewer - as end-user I’d
expect something closer to streetview, not to-down 2D map. At
least show it as 3D model what I already have.</div>
<div class="">d) why would anyone really need it? OSM has low
(“GPS level”) accuracy, so for general mapping it may be often
way more faster and const-effective just to survey the area
using handheld GPS and piece of paper. I can see some use cases:</div>
<div class=""> - new city district/quarter, not in
satellite/aerial yet. You should have quite big coverage UAV
(e.g. glider, not just quadrocopter), otherwise manual mapping
could be more effective.</div>
<div class=""> - area is not physically accessible by foot</div>
<div class=""> - shared geo-imagery is byproduct of your nice new
toy picture collection.</div>
<div class=""> - because I can, it is fun etc - probably most
common reasons today</div>
<div class=""><br class="">
</div>
<div class="">Jaak</div>
<br class="">
<div>
<blockquote type="cite" class="">
<div class="">On 26 Aug 2015, at 02:22, Liz Barry <<a
moz-do-not-send="true" href="mailto:ebarry@gmail.com"
class=""><a class="moz-txt-link-abbreviated" href="mailto:ebarry@gmail.com">ebarry@gmail.com</a></a>> wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<p dir="ltr" class="">+1 to openaerialmap and opendronemap</p>
<p dir="ltr" class=""><a moz-do-not-send="true"
href="http://Mapknitter.org" class="">Mapknitter.org</a>
also connects your imagery into osm editors</p>
<div class="gmail_quote">On Aug 25, 2015 11:01 AM, "Oleksiy
Muzalyev" <<a moz-do-not-send="true"
href="mailto:oleksiy.muzalyev@bluewin.ch" class="">oleksiy.muzalyev@bluewin.ch</a>>
wrote:<br type="attribution" class="">
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000" class="">
<div class="">Hi Blake,<br class="">
<br class="">
A quadrocopter cannot be flown higher than 150
meters due to regulations. Usually a flight in a
city happens happens like this. I carefully select a
takeoff & landing ground. It could be a lawn in
a park, a grass area, empty construction site, etc.
preferably early in the morning. <br class="">
<br class="">
I switch on the GoPro to make one photo per second,
then I take off and fly only above this empty area.
So practically it is out of the question to fly
above a city freely to make orthorectified imagery
of the whole city. However panoramic low altitude
(50 - 150 meters) aerial photos could be shot in all
directions and are complimentary to satellite
imagery. And it is possible to find such an area for
takeoff and safe landing almost everywhere.<br
class="">
<br class="">
As for programming this feature, an image is just
uploaded, coordinates and camera direction are saved
in a database for this image. Maybe also a rating
system.<br class="">
<br class="">
Prosumer UAVs progressed a lot this year. Now it has
a Fail Safe - returning to the point where it
took-off automatically, Home-Lock, - if a pilot lost
orientation, it starts moving to the pilot the
shortest way, Course-Lock - independent of yaw,
forward remains forward (very useful at altitude
higher than 100 meters, when it is hard to see the
UAV's orientation). So it is relatively easy and
safe to pilot. It also has now self-tightening
propellers. I takes about a minute to put them on
for a flight and remove for a compact
transportation.<br class="">
<br class="">
Also this year the GoPro 4 Session camera appeared.
It weighs only 72 grams. F450 DJI can easily carry
two such cameras. Opposite to the StreetView
approach it is not necessary to walk or drive every
street to film it. <span class="" lang="en"><span
class="">A dozen or two of</span> <span
class="">flights</span> <span class="">in good
weather will cover</span> <span class="">the
entire city.<br class="">
<br class="">
And as I already said the system is very robust.
Even if a crash happens, having built it from an
ARF kit oneself makes it just a mater of several
minutes to exchange a spare part or two. If
there is a special layer for 50 - 150 meters
aerial photos on the OSM map, it is quite
realistic that people could start shooting such
aerial photos and upload. I hope to learn more
on this subject at the conference next month.<br
class="">
<br class="">
Best regards,<br class="">
Oleksiy<br class="">
</span></span><br class="">
On 25/08/15 14:58, Blake Girardot wrote:<br class="">
</div>
<blockquote type="cite" class=""> <br class="">
Hi, <br class="">
<br class="">
OpenAerialMap is designed to take georeferenced
aerial imagery and make it publicly available for
mapping. <br class="">
<br class="">
OpenDroneMap is processing only software, but you do
end up with a stitched together georeferenced,
orthorectified image and point cloud files. <br
class="">
<br class="">
<a moz-do-not-send="true"
href="http://openaerialmap.org/" target="_blank"
class="">http://openaerialmap.org/</a> <br
class="">
<br class="">
<a moz-do-not-send="true"
href="http://opendronemap.github.io/odm/"
target="_blank" class="">http://opendronemap.github.io/odm/</a>
<br class="">
<br class="">
Cheers, <br class="">
Blake <br class="">
<br class="">
<br class="">
<br class="">
On 8/25/2015 8:49 AM, Jaak Laineste wrote: <br
class="">
<blockquote type="cite" class="">Hello, <br
class="">
<br class="">
Btw, what is current state of special services to
share the data? <br class="">
openstreetphoto is dead, mapilliary could almost
be used [1], but it is <br class="">
not really optimised for it. With drone imagery
software you get 3D <br class="">
models “for free” as part of processing/SfM, you
often (but not always) <br class="">
georeference your data etc. Anyone knows about on
opendronephoto <br class="">
project yet? <br class="">
<br class="">
Sharing with plain photo sharing service just does
not feel right. <br class="">
<br class="">
Jaak <br class="">
<br class="">
[1] <a moz-do-not-send="true"
href="http://blog.mapillary.com/technology,/update/2014/05/20/drones.html"
target="_blank" class="">http://blog.mapillary.com/technology,/update/2014/05/20/drones.html</a>
<br class="">
<br class="">
<br class="">
2015-08-25 8:44 GMT+03:00 Oleksiy Muzalyev <<a
moz-do-not-send="true"
href="mailto:oleksiy.muzalyev@bluewin.ch"
target="_blank" class=""><a class="moz-txt-link-abbreviated" href="mailto:oleksiy.muzalyev@bluewin.ch">oleksiy.muzalyev@bluewin.ch</a></a>
<br class="">
<a moz-do-not-send="true"
href="mailto:oleksiy.muzalyev@bluewin.ch"
target="_blank" class=""><mailto:oleksiy.muzalyev@bluewin.ch></a>>:
<br class="">
<br class="">
Good morning, <br class="">
<br class="">
Here are some of panoramic aerial images which
I made in Odessa, <br class="">
Ukraine, with the quadrocopter F450 DJI
(flight controller Naza V2 <br class="">
with GPS) and camera GoPro 4 Session. One such
an image may cover <br class="">
several square kilometers. It does not
substitute satellite imagery, <br class="">
but provides useful information for mapping:
building levels, <br class="">
land-use, etc. <br class="">
<br class="">
And it is not necessary to have hundreds of
photos for just one <br class="">
street as with a Street-View approach. So it
is not necessary to <br class="">
have the newest servers for such a layer. <br
class="">
<br class="">
City of Odessa, Ukraine: <br class="">
<a moz-do-not-send="true"
href="https://goo.gl/photos/Jnt4TaXuxyw7j6kR8"
target="_blank" class="">https://goo.gl/photos/Jnt4TaXuxyw7j6kR8</a>
<br class="">
<br class="">
and town of Bilhorod-Dnistrovs'kyi: <br
class="">
<a moz-do-not-send="true"
href="https://goo.gl/photos/ve3NPBSg98v46n5J7"
target="_blank" class="">https://goo.gl/photos/ve3NPBSg98v46n5J7</a>
<br class="">
<br class="">
to get the HD photo download it, do not save
from the browser screen. <br class="">
<br class="">
<a moz-do-not-send="true"
href="https://goo.gl/photos/Jnt4TaXuxyw7j6kR8"
target="_blank" class=""><https://goo.gl/photos/Jnt4TaXuxyw7j6kR8></a>F450
DJI is assembled from <br class="">
the ARF (almost ready to fly kit), so it is
easy to upgrade and <br class="">
repair. It is a robust flying platform. Let
alone camera GoPro 4 <br class="">
Session. <br class="">
<br class="">
Mapillary accept aerial images but a flight
should be only 4 - 5 <br class="">
meters above the ground. I published several
aerial images on Google <br class="">
Maps though, and the number of views is in
thousands. Images are to <br class="">
be geo-tagged before publishing to Google
Maps. <br class="">
<br class="">
There will be the conference "How drones
changing your business" in <br class="">
Lausanne, Switzerland, on September 14th and
15th 2015: <br class="">
<a moz-do-not-send="true"
href="http://droneapps.co/" target="_blank"
class=""><http://droneapps.co/></a><a
moz-do-not-send="true"
href="http://droneapps.co/" target="_blank"
class=""><a class="moz-txt-link-freetext" href="http://droneapps.co/">http://droneapps.co/</a></a> . Among
attendees are <br class="">
DJI, Airbus, Lufthansa, SenseFly, DB Bahn,
SNCF, and others. <br class="">
<br class="">
I am also experimenting with fixed-wing UAVs.
It is much harder to <br class="">
learn to pilot well, but a fixed-wing UAV is
capable by now to fly <br class="">
about 200 km along a waypoint route with an
autopilot. <br class="">
<br class="">
So the idea is to implement such a panoramic
aerial imagery layer at <br class="">
the OSM. <br class="">
<br class="">
Best regards, <br class="">
Oleksiy <br class="">
<br class="">
<br class="">
<br class="">
_______________________________________________ <br
class="">
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href="mailto:dev@openstreetmap.org"
target="_blank" class="">dev@openstreetmap.org</a>
<a moz-do-not-send="true"
href="mailto:dev@openstreetmap.org"
target="_blank" class=""><mailto:dev@openstreetmap.org></a>
<br class="">
<a moz-do-not-send="true"
href="https://lists.openstreetmap.org/listinfo/dev"
target="_blank" class="">https://lists.openstreetmap.org/listinfo/dev</a>
<br class="">
<br class="">
<br class="">
<br class="">
<br class="">
-- <br class="">
Jaak Laineste <br class="">
<br class="">
<br class="">
<br class="">
_______________________________________________ <br
class="">
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</blockquote>
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