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Virtual Reality - Essays

Virtual Reality


, is a computer-generated, multi-sensory human interface to computers. extends beyond the capability of typical workstation graphics in two ways. First, through the use of tracking sensors, the computer knows precisely the location and angle of the user's head, which enables the graphics scene to be generated in the correct perspective for each eye. Second, because a very wide-angle image is provided, which is updated 10 to 60 times a second and is often augmented with synthesized surround sound, motion, and even scent, a level of immersion in the simulated scene is achieved. Immersion, combined with correct perspective, allows the development of facile methods for navigation in three ...

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are four major types of devices currently in use: the head-mounted display (HMD), the binocular omni-oriented monitor (BOOM), the workstation "desktop" model (DEERING), and the projection model (CAVE). The HMD is a tracked helmet worn by the user that provides small television screens properly placed in front of the eyes. Although modest in comparison with other VR devices, it is not lightweight enough to prevent fatigue, and the screen resolution is typically medium at best. The BOOM also uses small television screens, but the angle of view is improved by wide-angle optics. The screens are suspended from a mechanical arm articulated in five dimensions that eliminates the weight of the HMD and provides accurate tracking over its range of operation. The desktop model uses a standard workstation screen outfitted with stereo liquid crystal display (LCD) shutter glasses synchronized with the screen so that each eye's view, drawn in correct perspective, is presented to that eye only. ...

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is known as The termcyberspace has sometimes been used synonomously with VR but has by now gained its own meaning. (Gump)
Since the 1970s, technologists have learned how to produce animated computer images of objects that exhibit the colors, textures, and changing spatial orientations that their counterparts exhibit in the real world. The images can also be subjected to changing light conditions and to simulated effects of gravity and other forces (see computer graphics; computer modeling). The results can look as real as actual motion pictures. The further aim of technologists is to make it possible for persons to "enter" and actually manipulate VR. (Gump) Thus far this is being ...

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"Virtual Reality." Essayworld.com. February 27, 2004. Accessed March 28, 2024. http://www.essayworld.com/essays/Virtual-Reality/3741.
"Virtual Reality." Essayworld.com. February 27, 2004. Accessed March 28, 2024. http://www.essayworld.com/essays/Virtual-Reality/3741.
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PAPER DETAILS
Added: 2/27/2004 04:47:47 PM
Category: Technology
Type: Premium Paper
Words: 1559
Pages: 6

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