How does the HoloLens know its location? If you look at the device and take a closer look at its front, you will see five tiny cameras. These are the eyes of the device; these are what make the device aware of its surroundings.
The camera you see in the middle is a normal, 2 megapixel RGB style camera, like the ones you will find in your mobile phone. The four cameras to the sides, two to the right and two to the left, are the environment cameras. They look at the area around you and are partially responsible to produce the knowledge the device needs to know what the room you are in looks like. I said partially, because there is another camera in the middle and front of the device. You cannot really see it since it is hidden behind ...
