Hi Blake,
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.
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.
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.
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.
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. A dozen or two of flights in good weather will cover the entire
city.
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.
Best regards,
Oleksiy
On 25/08/15 14:58, Blake Girardot wrote:
Hi,
OpenAerialMap is designed to take georeferenced aerial imagery and
make it publicly available for mapping.
OpenDroneMap is processing only software, but you do end up with a
stitched together georeferenced, orthorectified image and point cloud
files.
http://openaerialmap.org/
http://opendronemap.github.io/odm/
Cheers,
Blake
On 8/25/2015 8:49 AM, Jaak Laineste wrote:
Hello,
Btw, what is current state of special services to share the data?
openstreetphoto is dead, mapilliary could almost be used [1], but it is
not really optimised for it. With drone imagery software you get 3D
models “for free” as part of processing/SfM, you often (but not always)
georeference your data etc. Anyone knows about on opendronephoto
project yet?
Sharing with plain photo sharing service just does not feel right.
Jaak
[1] http://blog.mapillary.com/technology,/update/2014/05/20/drones.html
2015-08-25 8:44 GMT+03:00 Oleksiy Muzalyev <[email protected]
<mailto:[email protected]>>:
Good morning,
Here are some of panoramic aerial images which I made in Odessa,
Ukraine, with the quadrocopter F450 DJI (flight controller Naza V2
with GPS) and camera GoPro 4 Session. One such an image may cover
several square kilometers. It does not substitute satellite imagery,
but provides useful information for mapping: building levels,
land-use, etc.
And it is not necessary to have hundreds of photos for just one
street as with a Street-View approach. So it is not necessary to
have the newest servers for such a layer.
City of Odessa, Ukraine:
https://goo.gl/photos/Jnt4TaXuxyw7j6kR8
and town of Bilhorod-Dnistrovs'kyi:
https://goo.gl/photos/ve3NPBSg98v46n5J7
to get the HD photo download it, do not save from the browser
screen.
<https://goo.gl/photos/Jnt4TaXuxyw7j6kR8>F450 DJI is assembled from
the ARF (almost ready to fly kit), so it is easy to upgrade and
repair. It is a robust flying platform. Let alone camera GoPro 4
Session.
Mapillary accept aerial images but a flight should be only 4 - 5
meters above the ground. I published several aerial images on Google
Maps though, and the number of views is in thousands. Images are to
be geo-tagged before publishing to Google Maps.
There will be the conference "How drones changing your business" in
Lausanne, Switzerland, on September 14th and 15th 2015:
<http://droneapps.co/>http://droneapps.co/ . Among attendees are
DJI, Airbus, Lufthansa, SenseFly, DB Bahn, SNCF, and others.
I am also experimenting with fixed-wing UAVs. It is much harder to
learn to pilot well, but a fixed-wing UAV is capable by now to fly
about 200 km along a waypoint route with an autopilot.
So the idea is to implement such a panoramic aerial imagery layer at
the OSM.
Best regards,
Oleksiy
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