https://uxplanet.org/a-computers-understanding-of-space-for-augmented-reality-c0fd40a52900

The goal of Augmented Reality is to superimpose the computer’s perception of space with human’s understanding of it. In computer science, space is simply a metaphor for commonly agreed and scientifically validated concepts of space, time and matter. Space is defined and simulated purely by mathematical equations. A virtual space is nothing but a computer’s understanding of the real world as provided by humans.

Humans are spatial beings. We interact with and understand a large portion of our realities in three dimensions. As Augmented reality tries to simulate visual worlds into human reality, it is important to understand the basic aspects of 3D spaces.