Photogrammetry involves using data collected from high-resolution cameras to create either a 2D or 3D survey of an area. Photogrammetry relies upon still images and photogrammetry has two chief advantages: it’s affordable, and it can sometimes be easier to read by human eyes, if not by software.
Photogrammetry is the ideal solution for organizations that are imaging large, clear areas, and environments that have already been developed.
Photogrammetry may also be ideal if the colors in a survey matter; if high resolution, colored images of the site are necessary.
Some projects have limited budgets — in these cases, photogrammetry may be the only viable solution. For this reason, this type of surveying is also often used for smaller mapping projects. It’s a simple and fast way to get a reasonably accurate survey.