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1 September 1990 Wide-angle orthostereo
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Proceedings Volume 1256, Stereoscopic Displays and Applications; (1990)
Event: Electronic Imaging: Advanced Devices and Systems, 1990, Santa Clara, CA, United States
Anplar fields of view filling at least the region directly viewable on the optical axis of the eyes -about 90 - are necessary to support the illusion of being immersed in another space, be it computer generated or the product of remote cameras. Any greater view, up to 270° laterally, enhances the illusion. Stereopsis, and completing the 360° visual sphere by head motion, round out the illusion; they require the wearing of a head-mounted-display (HMD). This paper describes the optical viewing system used in almost all existing HMD systems, and makes the case that, compared to video monitors, these HMD systems provide a qualitatively different kind of access to remote or computer generated reality -a difference that, even in the present crude state of the art, is striking enough to herald a new order of computer interfacing and real time telepresence. A caveat is presented: that if the spatial presentation is false - not "orthospace" - then the charm and power of the illusion, and the utility of the system, are sharply diminished.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Eric M. Howlett "Wide-angle orthostereo", Proc. SPIE 1256, Stereoscopic Displays and Applications, (1 September 1990);


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