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Proceedings Paper

Effects of test structure on depth perception measurement tasks
Author(s): Curtis S. Ikehara; Robert E. Cole; John O. Merritt
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Paper Abstract

The efficacy of using point source lights to measure depth perception under remote view is evaluated. A Howard-Dolman type apparatus in which the depth plane is represented by either traditional rods or by point source lights is used. Ten operators, half viewing rods and half viewing lights, were asked to give depth scaling and stereoacuity judgments under four display conditions: (1) 2-D static, (2) 2-D motion parallax, (3) 3-D static, (4) 3-D motion parallax. The pattern of both stereoacuity and depth scaling responses was similar for rods and lights across the four conditions. Stereoacuity was significantly improved under 3-D as compared to 2-D view and under motion parallax as compared to static view for both lights and rods. When viewing lights but not rods a combination of motion parallax with disparity cues produced further improvements in stereoacuity. This pattern of results was similar for depth scaling, but differences were not significant. The accuracy of both stereoacuity and depth scaling judgments decreased when point source lights, as compared to rods, were viewed. These results show that point source lights produce valid measures of depth perception and contain fewer non-disparity cues than traditional Howard-Dolman rods.

Paper Details

Date Published: 30 June 1992
PDF: 7 pages
Proc. SPIE 1669, Stereoscopic Displays and Applications III, (30 June 1992); doi: 10.1117/12.60422
Show Author Affiliations
Curtis S. Ikehara, Univ. of Hawaii/Manoa (United States)
Robert E. Cole, Univ. of Hawaii/Manoa (United States)
John O. Merritt, Interactive Technologies (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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