30 June 1992 Effects of test structure on depth perception measurement tasks
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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.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Curtis S. Ikehara, Curtis S. Ikehara, Robert E. Cole, Robert E. Cole, John O. Merritt, John O. Merritt, } "Effects of test structure on depth perception measurement tasks", Proc. SPIE 1669, Stereoscopic Displays and Applications III, (30 June 1992); doi: 10.1117/12.60422; https://doi.org/10.1117/12.60422

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