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VWN VR Interface Overviews: Heads Up Display
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VR Interfaces: Heads Up Display


Overview of Heads Up Display
What if you could take the physical world, and overlay virtual reality images directly onto it? See the physical world, but with bits added from computer mediation?

The Heads Up Display, or HUD is one method of doing this.

Borrowing heavily from HMD or Head Mounted Display technology, the HUD sits on the user?s head, and utilises one, or if stereoscopic, two cameras to record the outside world. This information is then fed into a processing computer which analyses what you are looking at, tries to work out what the objects are, likely taking data from GPS, or, in the case of the military, radar systems to help identify what you are looking at. The processing system then adds virtual data to the video stream, before feeding it back to the Heads Up Display, which delivers the image to the wearer.

A different sort of HUD has emerged since 2004. Heads Up Display projectors allow people to watch films, or interface with their PC whilst walking along, without losing their normal vision.

They work, by having a tiny projector or backlit screen on a worn rim which projects straight into one eye, the screen. This has the effect of superimposing a large virtual screen on your vision, which, because it only affects one eye, is transparent, allowing you to seethe physical world through it.

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