Defining it
According to photogrammetry.com, “photogrammetry is the science of making measurements from photographs.” “Photo”- light, “gram”- drawing, “metry”- measurement. How does this line up? The pictures are taken and “drawn” up using the exact “measurements”. These drawing of whatever was photographed can then be applied to create a 3D model or used digitally.
Used on everything
Whether it is animals and people or roads and buildings, photogrammetry can be used on anything! The catch is the object must remain stationary so that a series of photos can be taken and lined up to create the model. The 3D model creates measurements that are exact to the object it took the series of photos of.
2D to 3D
Photogrammetry takes 2D photos taken in an overlapping sequence and creates a 3D model. Through high tech software the 2D photos are lined up, edges cleaned up, measurements made precise, and finally produces measurements/models of that object.
Different “field of view”
Photogrammetry provides a different visual intake than any other form of photography because it is able to capture and create a graphic that provides the most information possible of the object. It can take a series of photos of a building (like we plan to do with our project) and the 3D model produced can be made into a smaller model. It can also be used digitally, allowing the user to view the object or place electronically.
Perks of the UAV and Photogrammetry combination
With combining a UAV and the photogrammetry concept, we are able to create a model that is extremely detailed. The UAV allows us to get close to all angles of the building while the photogrammetry allows us to create the 3D model of the building.
By: Katrina Aducci
Sources:
“Photogrammetry.” Photogrammetry. N.p., n.d. Web. 19 Nov. 2015.
“The Pros and Cons of Photogrammetry vs. 3D Scanning for 3D Printed Figurines – Mcor Technologies.” Mcor Technologies. N.p., 11 May 2015. Web. 19 Nov. 2015.