Structure-from-motion (SfM) photogrammetry is a means to digitally document the surface details of an object in 3-dimensions using off the shelf cameras, computers and software. Photogrammetry historically has been used to measure details on the surface of the Earth, structures or other natural features. Employing SfM, like traditional photogrammetry, surface details and the dimensional aspects of even small objects can be precisely measured and digitally archived for future study. For paleontology, this method in recent years has increasing become important because the costs with recording an object are continuing to drop and easier to use as technology improves. SfM has broad applicability in paleontology for both body (think bones and teeth) and ichno- or trace fossils (think tracks, burrows or impressions). Additionally, the ease of transmitting the derived 3D data has allowed information on rare specimens to be shared with researchers and the public. The National Park Service uses photogrammetry to improve access to scientifically important or interesting objects and in turn enhance the visitor's experience (whether in-person or "virtually").
Grand Canyon—Ichniotherium trackway
The Geologic Resources Division (GRD) of the Natural Resources Stewardship and Science Directorate has acquired equipment and software to develop a photogrammetric data program to support parks and regions. This includes technology and training for photogrammetric capture, analysis, and 3D printing, in the resource management areas of protection, research, mitigation, restoration, inventory, monitoring, interpretation, and planning. For more information on photogrammetry techniques and applications, contact us.
Last updated: October 14, 2020