A Foray into Laser Projection and the Visual Perception of Aircraft Aspect

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Authors
  1. Niall, K.K.
Corporate Authors
Defence R&D Canada - Toronto, Toronto ONT (CAN)
Abstract
High-resolution visual displays have been designed for flight simulation so that observers may judge the aspect angle of aircraft at far distances. The present experiment compares two display devices as untrained observers judge the spatial orientation of two target aircraft: F15 and F16 jets. The display devices are a prototype direct-write microlaser projector, and an SXGA format CRT display. Observers' accuracy of aircraft identification is better with the laser projector, and recognition response times are faster. A simple rule was found to fit the observers' response times: the rule is expressed in terms of a statistic on the autocorrelation of black and white silhouette images of aircraft. Observers' estimates of aspect are biased by the laser projector, while observers' estimates of aspect are accurate on average with the SXGA display. This bias in estimation of aspect may be attributable to variations in line brightness introduced by the laser projector.

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Keywords
Aircraft identification;Aspect angle;Display technology;Laser projection;Target identification;Visual systems
Report Number
DRDC-TORONTO-TR-2002-108 — Technical Report
Date of publication
01 Apr 2002
Number of Pages
47
DSTKIM No
CA022197
CANDIS No
519042
Format(s):
Hardcopy

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