If you’re acquainted with VRHeadspace, you might have heard the term “photogrammetry”. You probably notice it sounds like the word photography. Interestingly enough, photogrammetry and photography actually do relate in meaning. Photogrammetry is the process of using photography to document objects in their three dimensional glory. The objects can be small and tangible like a ring, or something much larger like a building. First, the object is captured and measured with images taken from different angles. These images are then merged into one file including sufficient data to make up the object. This file can be used in three different ways; digital media, virtual reality, and replication.
The file constructed by photogrammetry is a 3D model of the object. It can be viewed and interacted with on a digital monitor. The 3D model can be displayed on a website, in a video, or in a video game.
Photogrammetry in VR
The 3D model reaches a deeper level of interactivity in virtual reality. VRHeadspace uses photogrammetry to bring objects from the real world into a more limitless environment. We have a collection of random objects to interact with, from a cupcake to a drill. When the cupcake is shaken, icing falls off of it. The drill is able to snap onto its battery, which we also put in VR.
Replication: 3D Print
Another use for photogrammetry is exact or modified reproduction. The 3D model can be sent to the 3D printer to create a replication of the actual object. In the image below, the skull on the left was captured and designed as a 3 dimensional file. This file was then sent to a 3D printer, which made the item on the right.
Photogrammetry is a really neat process. It’s an excellent way of documenting tangible objects, humans, animals and environments in their current state. VRHeadspace joyfully makes use of its several purposes.
“Photogrammetry.” Photogrammetry. Alan Walford, n.d. Web. 17 Aug. 2016.