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Proceedings Paper

Evaluations of new symbology for wide-field-of-view HMDs
Author(s): Steven P. Rogers; Charles N. Asbury; Loran A. Haworth
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Paper Abstract

New HMD symbols, specifically designed for wide-field-of-view (WFOV) application, were dynamically prototyped using a WFOV helmet mounted display (HMD) in conjunction with the PRISMS helicopter flight simulator. Missions were flown through realistic terrain by an expert Apache pilot. The data indicate that: (1) Pilot performance, in almost all measures, is substantially improved with use of a WFOV (99), as compared to a narrow-field-of-view (NFOV) (40) display; (2) Earth-fixed navigational and tactical symbols improve navigation accuracy, enhance aircraft handling performance, improve target acquisition, and reduce pilot workload; (3) Best performances were typically exhibited using WFOV with the new symbols-- neither the WFOV nor the symbols alone could produce peak perform-ance; (4) A flight path marker symbol showing the aircraft velocity vector improves aircraft handling and reduces workload, especially when paired with a WFOV display; (5) The new symbols were valuable even in complete darkness, showing that the superiority of the WFOV is due not only to broader views of the terrain, but also to broader views of effectively designed symbology; and (6) The additional area of the WFOV display can be used to present useful ancillary data without cluttering the central zone.

Paper Details

Date Published: 22 August 2001
PDF: 12 pages
Proc. SPIE 4361, Helmet- and Head-Mounted Displays VI, (22 August 2001); doi: 10.1117/12.437997
Show Author Affiliations
Steven P. Rogers, Anacapa Sciences, Inc. (United States)
Charles N. Asbury, ThoughtWave, LLC (United States)
Loran A. Haworth, NASA Ames Research Ctr. (United States)

Published in SPIE Proceedings Vol. 4361:
Helmet- and Head-Mounted Displays VI
Ronald J. Lewandowski; Loran A. Haworth; Henry J. Girolamo; Clarence E. Rash, Editor(s)

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