22 December 1978 Autostereoscopic Displays Using A Stereo-Pair Of Images
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The use of only one stereo-pair of images in an autostereoscopic projection results in severe viewing limitations. Such displays are rediscovered from time to time and then proposed as a magical solution to the problems of viewing a three dimensional display without glasses. The method of viewing a stereoscopic projection by using viewing means, such as special glasses to channel a stereo-pair of images to the left and right eyes of the viewer, is well known. Auto-stereoscopic screens, such as a grid screen, a fresnel lens screen, or a lenticular screen can be used to channel and present a stereopair of projected images in appropiate eye zones located in space in front of the display. However, group viewing is limited and head movement is restricted to a short narrow space, no more than about 2.5 inches wide. This type of display can not be successfully utilized for entertainment, such as home television, or theatrical or amateur motion pictures, because the public will not accept a system which requires they hold their heads in a vice-like position. Industrial displays, such as closed-circuit television, computer graphics, and industrial motion pictures can occassionaly use a stereo-pair autostereoscopic system. Most of these applications are better served by the use of polarized glasses or a viewing hood. The conclusion drawn is that only an autostereoscopic display which projects a stereo continuum of multiple stereo images will allow sufficient head movement to be useful for entertainment and other applications.
© (1978) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
James F. Butterfield, James F. Butterfield, } "Autostereoscopic Displays Using A Stereo-Pair Of Images", Proc. SPIE 0162, Visual Simulation and Image Realism I, (22 December 1978); doi: 10.1117/12.956902; https://doi.org/10.1117/12.956902


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