An Insight Into Virtual Reality Essay

This essay has a total of 1160 words and 5 pages.

An Insight Into Virtual Reality

An Insight Into Virtual Reality


Virtual Reality is a creation of a highly interactive computer based
multimedia environment in which the user becomes a participant with the computer
in a "virtually real" world
We are living in an era characterized by 3D virtual systems created by
computer graphics. In the concept called Virtual Reality (VR), the virtual
reality engineer is combining computer, video, image-processing, and sensor
technologies so that a human can enter into and react with spaces generated by
computer graphics.
In 1969-70, a MIT scientist went to the University of Utah, where he
began to work with vector generated graphics. He built a see-through helmet
that used television screens and half-silvered mirrors, so that the environment
was visible through the TV displays. It was not yet designed to provide a
surrounding environment. It was not until the mid '80's that virtual reality
systems were becoming more defined. The AMES contract started in 1985, came up
with the first glove in February 1986. The glove is made of thin Lycra and is
fitted with 15 sensors that monitor finger flexion, extension, hand position and
orientation. Connected to a computer through fiber optic cables. Sensor inputs
enable the computer to generate an on screen image of the hand that follows the
operator's hand movements. The glove also has miniature vibrators in the finger
tips to provide feedback to the operator from grasped virtual objects.
Therefore, driven by the proper software, the system allows the operator to
interact by grabbing and moving a virtual object within a simulated room, while
experiencing the "feel" of the object.
The virtual reality line includes the Datasuit and the Eyephone. The
Datasuit is an instrumented full-body garment that enables full-body interaction
with a computer constructed virtual world. In one use, this product is worn by
film actors to give realistic movement to animated characters in computer
generated special effects. The Eyephone is a head mounted stereo display that
shows a computer made virtual world in full color and 3D.
The Eyephone technology is based on an experimental Virtual Interface
Environment Workstation (VIEW) design. VIEW is a head-mounted stereoscopic
display system with two 3.9 inch television screens, one for each eye. The
display can be a computer generated scene or a real environment sent by remote
video cameras. Sound effects delivered to the headset increase the realism.
It was intended to use the glove and software for such ideas as a
surgical simulation, or "3D virtual surgery" for medical students. In the
summer of 1991, US trainee surgeons were able to practice leg operations without
having to cut anything solid. NASA Scientists have developed a three-
dimensional computer simulation of a human leg which surgeons can operate on by
entering the computer world of virtual reality. Surgeons use the glove and
Continues for 3 more pages >>




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