Photogrammetry is defined as ” the use of photography in surveying and mapping to ascertain measurements between objects”
In recent times though, the use of photogrammetry has been heralded as the revolution to create 3D models for the virtual reality industry.
I decided to test out this new technique, having only used LIDAR before for 3D mapping. Equipped with my drone, I headed out to a local surf spot, Taylors Mistake. I wanted to scan the whole bay, but after a quick test run realised I would not have enough battery to finish (also I had to cancel the day before because of rain). Not wanting to miss the opportunity, I decided to focus on scanning the Surf Life Saving building.
I set the height to about 60 meters and automated the drone, which flew across the site in a mesh pattern while taking photos at various angles. Additionally, I flew the drone at a lower elevation in a circle, and took manual photos which would help increase the resolution in the rendering process.
I managed to take 79 images in 4k resolution, and stitched them together to make a 3D model of the scene. Here is the finished 3D model, with some original photos below for reference.
