1 September 1990 Effect on real-world depth perception from exposure to heads-down stereoscopic flight displays
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The application of stereopsis (true depth) cuing to advanced heads-down flight display concepts offers potential gains in pilot situation awareness and improved task performance, but little attention has been focused on a fundamental issue involving their use. The goal of this research was to determine whether or not the short-term use of heads-down stereoscopic displays in flight applications would degrade the real-world depth perception of pilots using such displays. Stereoacuity tests are traditionally used to measure the real-world depth perception of a subject. This study used such a test as part of the experimental protocol. Eight transport pilots flew repeated simulated landing approaches using both non-stereo and stereo 3-D heads-down pathway-in-the-sky displays. At the decision height of each approach, the pilots transitioned to a stereoacuity test using real objects rather than a two-dimensional target test apparatus. Statistical analysis of stereoacuity measures (averaged over pilots and replicates), comparing a control condition of no-exposure to any electronic flight display with the transition data from non-stereo and stereopsis displays, revealed no significant differences for any of the conditions. Clearly, transitioning from short-term exposure to a heads-down stereopsis display has no more effect on realworld depth perception (based on stereoacuity) than transitioning from a non-stereo display. However, depth perception effects based on size and distance judgements, and long-term exposure remain issues to be investigated.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Anthony M. Busquets, Anthony M. Busquets, Steven P. Williams, Steven P. Williams, Russell V. Parrish, Russell V. Parrish, } "Effect on real-world depth perception from exposure to heads-down stereoscopic flight displays", Proc. SPIE 1256, Stereoscopic Displays and Applications, (1 September 1990); doi: 10.1117/12.19888; https://doi.org/10.1117/12.19888

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