Comparison of Oculometer and Head-Fixed Reticle with Voice or Switch and Touch Panel for Data Entry on a Generic Tactical Air Combat Display
Abstract
An experiment with 15 U.S. Army enlisted military subjects was conducted to compare the use of a head-mounted oculometer, a head-fixed reticle, and a touch panel for data entry tasks on a generic tactical air combat display. The oculometer and the fixed reticle were operated in a head-free mode and were used with either switch or voice. The fixed reticle with switch, the oculometer with switch, and the touch panel are significantly faster than the fixed reticle with voice and the oculometer with voice. The fixed reticle methods are faster than the oculometer methods of the same modality. The switch methods are faster than the voice methods. The ocular pointing methods (whether oculometer of fixed reticle, voice or switch input) require a larger display activation window (+/- 1.1 inches at 27 inches' viewing distance) than does the touch panel, thereby limiting the number of selections that can be shown on the display. This is especially true for the oculometer with voice method which generated significantly more selection errors and may therefore require a still larger display activation window for proper operation. Keywords: Man computer interface; Army air to air helicopters; Tactical air combat display; Oculometers; Eyegaze pointing tasks; Head-fixed reticle; Touch panel. (kt)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1989
- Accession Number
- ADA217231
Entities
People
- Christopher C. Smyth
- Mary E. Dominessy
Organizations
- Human Engineering Laboratory