If you have a drone, like a DJI Phantom, you
possibly would like to make sometimes photo mosaics, or more precise
orthoimages. Commercial software, however, is expensive and many users won’t
spend thousands on software they will use only several times a year. There are
various free mission planning software packages, like Pix4D, DJI Ground Station
(DJI GS) which run on IOS, or Android tablets. Flyig a grid mission, collecting
images and getting the data into your computer, you will need software to stich
the images together. Here comes OpenDroneMap, a free, open source software package,
running on Windows, Mac and Linux. For details go to https://www.opendronemap.org/ . I have
run the software on a laptop computer, using the docker environment. There are now
several options to use ODM, Nativel (Linux Ubuntu 16.04), through docker
(Windows, Mac and Linux) or by using the WebODM API.
Easiest is possibly the WebODM, which gives you
a browser GUI to overcome the problem of (not complicated actually) line
commands. I have tested the software systematically, and in a desktop
environment several hundreds of images can be converted into an orthophoto,
digital elevation model (DEM) and point cloud. For larger datasets, I would use
a cloud computing service, with for example 120 M RAM and 20 cores, I used this
to process 2800 images successfully. For a desktop application I would suggest
32 M RAM as minimum, although 16 could work.
No comments:
Post a Comment