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Proceedings Paper

Determination of eye position in fast jet flight
Author(s): Jacqueline P. Viveash; A. J. Belyavin; Dave J. Bigmore; Geoffrey J. N. Clarkson; G. W. McCarthy; D. A. Rumbold; J. R.R. Stott
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Paper Abstract

The way in which a pilot's attention is distributed between various operational tasks during tactical flight is of prime importance when designing new cockpit displays. The point of regard, and by inference, the pilot's focus of attention, can be determined by measuring head and eye position. The measurement of head position using an electromagnetic coil technique is well proven in flight. However, most techniques currently available for determining eye position are too bulky and complex, compromise ejection safety and cannot, as yet, be used in the fast jet cockpit. This paper reports a feasibility study into the use of the electro-oculogram (EOG) to determine eye position during flight in a fast jet aircraft. EOG amplifiers have been designed for airborne use and three flight trials have been conducted in a Jaguar combat aircraft. Laboratory calibration studies have shown good linearity of the horizontal EOG, but some nonlinearity of the vertical EOG which is better described using a second order polynomial. In addition, there is an interaction between the horizonal and vertical components. These studies indicated that for an individual subject, an adequate calibration in both the horizontal and vertical planes could be achieved with a minimum of nine calibration points, but that the accuracy of the measurement was limited by the drift of the EOG signal. Results of the flight trials to validate this method will be presented.

Paper Details

Date Published: 10 June 1994
PDF: 6 pages
Proc. SPIE 2218, Helmet- and Head-Mounted Displays and Symbology Design Requirements, (10 June 1994); doi: 10.1117/12.177355
Show Author Affiliations
Jacqueline P. Viveash, Royal Air Force Institute of Aviation Medicine (United Kingdom)
A. J. Belyavin, Royal Air Force Institute of Aviation Medicine (United Kingdom)
Dave J. Bigmore, Defence Research Agency (United Kingdom)
Geoffrey J. N. Clarkson, Defence Research Agency (United Kingdom)
G. W. McCarthy, Royal Air Force Institute of Aviation Medicine (United Kingdom)
D. A. Rumbold, Royal Air Force Institute of Aviation Medicine (United Kingdom)
J. R.R. Stott, Royal Air Force Institute of Aviation Medicine (United Kingdom)


Published in SPIE Proceedings Vol. 2218:
Helmet- and Head-Mounted Displays and Symbology Design Requirements
Ronald J. Lewandowski; Wendell Stephens; Loran A. Haworth, Editor(s)

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