Effect on visual-recognition performance of misregistration and overlap for a biocular helmet-mounted display

Francine Landau

doi:10.1117/12.20964

1 October 1990 Effect on visual-recognition performance of misregistration and overlap for a biocular helmet-mounted display

Francine Landau

Author Affiliations +

Proceedings Volume 1290, Helmet-Mounted Displays II; (1990) https://doi.org/10.1117/12.20964
Event: 1990 Technical Symposium on Optics, Electro-Optics, and Sensors, 1990, Orlando, FL, United States

Abstract

A within subjects design was employed to evaluate three factors: dipvergence (.45 to 1 .8 degrees of subtended angle), divergence (.83 to 3.3 degrees), and overlap (35 to 100 percent). Using a configuration composed of a computer graphics engine, two monitors and a two channel optical relay system focused at infinity, imagery simulating FLIR detail and contrast was shown to subjects who searched the field for dynamic alphanumeric and geometric targets. Objective dependent measures were target recognition accuracy and response time. Subjective measures included verbal report of headaches, eyestrain, blurred or double vision any time during experimental trials. Although the extent of misregistration was not statistically significant, a breakpoint in performance was observed for each type of misalignment. Accuracy and latency measures indicated that performance deteriorated significantly as overlap area was decreased. Subjective measures indicated subjects were aware of blurring and doubling as misalignment levels increased and complained of eyestrain when overlap area was decreased.

Citation Download Citation

Francine Landau "Effect on visual-recognition performance of misregistration and overlap for a biocular helmet-mounted display", Proc. SPIE 1290, Helmet-Mounted Displays II, (1 October 1990); https://doi.org/10.1117/12.20964

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