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Proceedings Paper

Automatic software control of display parameters for stereoscopic graphics images
Author(s): Robert A. Akka
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Paper Abstract

Stereoscopic computer graphics images, if not properly composed, can be difficult to view. Interaxial separation may be set too low or too high, resulting in an inadequate or excessive stereoscopic effect. Or, the world-coordinate distance from the centers of projection to the plane of zero parallax may be too large or small, leaving the user with image components that seem misaligned and are difficult to fuse into a three-dimensional image. Software designers typically approach this problem by allowing the user to interactively alter two stereoscopic display parameters. However, the user often has difficulty adjusting the parameters of a practically unviewable initial image. Furthermore, changes in the graphics image may require frequent adjustment of stereoscopic parameters. For a good-looking stereoscopic computer graphics image, both negative and positive parallax should generally be utilized. This allows the viewer to perceive elements of the image both in front of and behind the display plane. The degrees of parallax, however, should be kept within certain limits. This paper describes methods for calculating both the initial settings and ongoing adjustments of stereoscopic parameters. Software using this approach should yield stereoscopic scenes that are comfortable and pleasing to look at, with a minimum of user adjustment.

Paper Details

Date Published: 30 June 1992
PDF: 8 pages
Proc. SPIE 1669, Stereoscopic Displays and Applications III, (30 June 1992); doi: 10.1117/12.60412
Show Author Affiliations
Robert A. Akka, StereoGraphics Corp. (United States)

Published in SPIE Proceedings Vol. 1669:
Stereoscopic Displays and Applications III
John O. Merritt; Scott S. Fisher, Editor(s)

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