Wednesday, August 13, 2008

Head-mounted display with two stereoscopic screens

Most of today’s VR systems consist of a head-mounted display with two stereoscopic screens positioned just a few inches in front of the eyes. Movement in cyberspace is simulated by shifting the optics in the field of vision in direct response to movement of certain body parts, such as the head or hands. Turn the head, and the scene shifts accordingly. The sensation is like being inside an artificial world the computer has created. As the user moves his head to look around, the images shift to create an illusion of movement. The user moves while the virtual world is standing still. The glasses also sense the user’s facial expressions through embedded sensors, and that information can control the virtual version of the user’s body. Most current VR systems provide only visual experiences created by computer-assisted design or other graphics/animation systems, but researchers are working on interface devices that add sound and touch. Experts agree that MMORPGs are our current epitome of VR. Various technologies (communications, AI, computing, interface) will affect us, and together these will shape society in the future. Eventually, VR may be delivered through direct computer-to-brain connections. This means that you could probably “jack-in” to a virtual world using a mechanism that connects the world with your brain. Sounds familiar? Yeah, that’s what the characters in the movie Matrix did all the time.

Remember Morpheus’ spine-chilling question – “What is real? If it is what you see and feel and smell, then real is nothing but electrical impulses analyzed by the brain.” If it were possible to connect your brain to the virtual 3D world, you could very well close your eyes and live a virtual life with all your senses intact. That’s what they do in the movie; but obviously, we are not ready with the cranium plungers yet. Such technology is still years away. We need economically feasible hardware, not to forget VR software so advanced, that it blurs the line between reality & virtual reality. But we’ll be there sooner than you think. Check out some software experiments showing promise.

Photosynth (http://labs.live.com/photosynth) from Microsoft Live Labs is a 3D image re-constructor that rebuilds entire environments based on hundreds of photos taken from different angles. The result is a web based photo browser that stitches photos into a seamless panorama in a true 3D environment. So, if you took enough pictures on your last trip to the Swiss Alps, go ahead and recreate a virtual 3D version of the snow-filled locales on your desktop.

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Source :
IIPM Editorial, 2008
An IIPM and Professor Arindam Chaudhuri (Renowned Management Guru and Economist) Initiative

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