How exactly to process drone survey data?

While surveying with drones, images of the bottom are extracted from multiple vantage points. Through processing these images, a photogrammetry software may then create orthomosaics and 3D models, that it can measure accurate distance, as well as surfaces and volumes of physical objects.

Data outputs from the drone

Images taken by the drone are usually saved on a memory card (such as SD card), just like for any other camera. Depending on  Get more information  utilized by the drone, the images are already geo-tagged or could be imported in a geo-tagging software, such as for example WingtraHub. In line with the size of the survey site, you probably have between a few hundred images and some thousand, and each image contains geographical information (X, Y, Z).

Importing into a photogrammetry software

After importing or uploading the geo-tagged images in a photogrammetry software such as Propeller, Bentley ContextCapture or Pix4D, images will undoubtedly be stitched together to create 2D or 3D types of the surveyed site. Image processing can be a lengthy process depending on amount of images and the performance of your computer. Some photogrammetry software are desktop-based, thus requiring robust hardware. Other software is cloud-based, employing powerful servers instead of your neighborhood computer to process the info.