Taken with ground-based cameras from known positions describes which photogrammetry term?

• A. Terrestrial Photogrammetry
• B. Aerial Photogrammetry
• C. Metric Photogrammetry
• D. Interpretative Photogrammetry

Answer: (A)

The key idea here is the platform and setup of image capture. When you take photos from the ground with cameras whose positions are known, you’re using terrestrial (ground-based) photogrammetry. This approach relies on known camera positions and often ground control to recover 3D measurements from the images, which is the hallmark of close-range, ground-based surveying.

In contrast, aerial photogrammetry uses cameras mounted on aircraft or drones above the scene, with orientation data tied to the flight platform. The other options emphasize the purpose or quality of the measurements (metric versus interpretative) rather than where the photos are taken from, so they don’t fit the described ground-based, known-position setup as well.