
Proceedings Paper
New computational control techniques and increased understanding for stereo 3-D displaysFormat | Member Price | Non-Member Price |
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Paper Abstract
Three-dimensional pictorial displays, incorporating depth cues via stereopsis, offer a potential means of
displaying information in a natural way to enhance situational awareness and provide increases in operator
performance. Conventional computational techniques rely on asymptotic transformations and symmetric
clipping to provide the stereo pair. New techniques that replace these conventional computations were
developed to increase the control of the stereo-viewing space. Also, the effective region of stereopsis cuing
was determined empirically by comparing perceived depth against computed depth.
Conventional asymptotic transformations, used to map the visual scene to the stereo viewing volume,
allow a single, specific scene distance to be fixed at the screen location. The new piece-wise linear approach
allows creative partitioning of the depth viewing volume, with freedom to place the depth cuing emphasis
where desired. Asymmetric clipping makes better use of the available display surface than symmetric
clipping, and provides increased fields-of-view throughout the depth-viewing volume.
The results of the experiment determining the effective region of stereopsis cuing indicate that a practical
viewing volume falls between -25%and+60% of the viewer-to-screen distance. Also, the data revealed that
increasing viewer-to-CRT distances provide increasing amounts of usable depth.
Paper Details
Date Published: 1 September 1990
PDF: 10 pages
Proc. SPIE 1256, Stereoscopic Displays and Applications, (1 September 1990); doi: 10.1117/12.19891
Published in SPIE Proceedings Vol. 1256:
Stereoscopic Displays and Applications
John O. Merritt; Scott S. Fisher, Editor(s)
PDF: 10 pages
Proc. SPIE 1256, Stereoscopic Displays and Applications, (1 September 1990); doi: 10.1117/12.19891
Show Author Affiliations
Steven P. Williams, NASA/Langley Research Ctr. (United States)
Russell V. Parrish, NASA/Langley Research Ctr. (United States)
Published in SPIE Proceedings Vol. 1256:
Stereoscopic Displays and Applications
John O. Merritt; Scott S. Fisher, Editor(s)
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