PHOTOGRAMMETRY
DRONE TOPOGRAPHY FOR OPEN SITES
What is Photogrammetry?
Photogrammetry is the science of obtaining reliable measurements and 3D information about objects and environments using photographs. It involves the use of specialized software to analyze photographs taken from different angles and positions, with the aim of creating accurate 3D models or maps of the object or area being analyzed.
Why choose aerial photogrammetry?
Aerial photogrammetry is a more reliable method of data acquisition than the conventional base and rover method. Even the most dedicated rover wielder can’t match the data density of a drone gathering photogrammetric data. A larger data sample will ultimately give a better representation of the original ground. This allows for more accurate bidding quantities for dirt contractors, and a more accurate price for the excavation portion of your next project.
This method works best for sites that have little vegetation and tree cover. Since photographs cannot penetrate a tree canopy or tall grass this method of data acquisition should be limited to wide open areas such as fields with short grass, sites with the topsoil stripped, gravel, parking lots, quarries, and dirt sites. For wooded lots or sites with tall grass check out our Aerial LiDAR option.
How accurate is photogrammetric data?
The accuracy of photogrammetric data can vary depending on several factors such as the quality of the images, the processing software, and the experience of the operator. Utilizing our state of the art equipment, top of the line processing software, and highly trained FAA certified drone pilots we are able to provide our customers with quality data that falls into the industry standard of sub-tenth of a foot accuracy. The data we collect does not necessarily exceed the base and rover collection method in point-point accuracy, but rather matches that accuracy while increasing the sample size of data collected. This results in overall better accuracy throughout the site.
