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stereoscopy |
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stereoscopy [‚ster·ē′äs·kə·pē] (physiology) The phenomenon of simultaneous vision with two eyes in which there is a vivid perception of the distances of objects from the viewer; it is present because the two eyes view objects in space from two points, so that the retinal image patterns of the same object are slightly different in the two eyes. Also known as stereopsis; stereoscopic vision. Stereoscopy The phenomenon of simultaneous vision with two eyes, producing a visual experience of the third dimension, that is, a vivid perception of the relative distances of objects in space. In this experience the observer seems to see the space between the objects located at different distances from the eyes. Stereopsis, or stereoscopic vision, is believed to have an innate origin in the anatomic and physiologic structures of the retinas of the eyes and the visual cortex. It is present in normal binocular vision because the two eyes view objects in space from two points, so that the retinal image patterns of the same object points in space are slightly different in the two eyes. The stereoscope, with which different pictures can be presented to each eye, demonstrates the fundamental difference between stereoscopic perception of depth and the conception of depth and distance from the monocular view. See Vision How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The Greenough optical design provides erect, unreversed, stereoscopic images with contrast, brightness and correct color. In terms of space alone there is perhaps eight times the amount of space information in a stereoscopic image as there is in a "flat" film. By donning a helmet equipped with magnetic sensors for determining head position and goggles consisting of a pair of small liquid-crystal displays for producing a stereoscopic image of a computer-generated scene, a user could fly over, under, into, and around the plotted data. |
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