Home Living in Broward Visiting County Government Doing Business
 Broward County > Geographic Information Systems > GIS Users Group
GIS Accessibility  
  Broward GIS Home
  Printable Maps
  Comp Plan Maps
  GIS Resources
Future Meetings
Past Meetings
April's Agenda

Drone to DEM: Method for UAS Data Acquisition and Assimilation into GIS

Presenter: Robert Garst

Unmanned Aerial Systems (UAS), or “drones” are taking to new heights in a variety of fields. These new technologies have an enormous potential for the geosciences. Using a hobby grade UAS and a small action camera as a remote sensing platform, a number of topographic products have been derived. These products include a detailed orthometric mosaic, DEM, and a point cloud. The method "structure from motion" (SFM) is employed in the creation of these products and requires a great deal of image overlap (at least 60%) to perform the bundle adjustment. The images and ground control points are the only source data required to generate these topographics. A small partially built neighborhood was chosen as the test area due to a variety of ground features. Despite the challenges of the consumer grade barrel lens, the initial results proved promising, with an image displacement on the order of one meter. In the near future, this will be rectified which should reduce the number of artifacts and improve the interpolation of the point cloud.

Robert Garst received a bachelor's degree from Western Illinois University with a major in Geography, and a minor in GIS. He is employed at Indian River County as a GIS Analyst where his primary duties include primary data collection and maintenance of the utility, telecommunication, and addressing datasets.

Discussion and Networking
Meeting Location

Broward County Water and Wastewater Services Training Room, Bldg. 2
2555 West Copans Road,
Pompano Beach, Florida 33069

  Date and Time:
April 30, 2015 (Thursday)
2:30 p.m. - 4:30 p.m.
  Click here to get the map
For more information on the forum, contact Victoria Morrow, GIS Manager, Broward County GIS Users Group Coordinator

GIS Data Download Broward GIS Homepage