Mapping with low-cost centimeter precise surveys: Drones and open source software
The Learning Objective of this session is “understand how low-cost hardware and open-source software can be used to establish a high quality geospatial dataset as a baseline for understanding risk in urban environments”. OpenDroneMap is a free (libre) and open source photogrammetry toolkit targeted at low flying aircraft imagery processing.
For the first half of the workshop, we will go over drone mapping basics: hardware, software, and best practices. We will also try to organize a flight somewhere close by, weather and legal hoops permitting. Depending on weather conditions and group size, we will split the group into two parts, one that will work on experiencing flight planning, the other will focus on collection of Ground Control Points using a novel low-cost uBlox survey setup. The second half of the workshop focuses on software processing of images from the drone in order to make the images usable as geospatial datasets. We will demonstrate how the Ground Control Points enter the processing chain and what their impact is. We’ll take users through installation and use of OpenDroneMap, WebODM, and the processing of datasets, settings, and options therein, and discuss and demonstrate options for hosted and scalable OpenDroneMap solutions.
Organizer: Deltares/TU Delft
Partner organizations: OpenDroneMap consortium, Humanitarian OpenStreetMap Team, World Bank