RESEARCH ON GAZE-CONTINGENT DISPLAYS: PHASE 3: EVALUATION OF CONTROLLABLE DISPLAY PARAMETERS FOR PRACTICAL APPLICATIONS

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Authors
  1. Stampe, D.
  2. Reingold, E.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN);Toronto Univ, Toronto ONT (CAN) Dept of Psychology
Abstract
Gaze-contingent displays with a high-resolution AOI window on a lower-resolution background can supply both fine detail and wide field view. The human factors of these displays are demanding yet not well investigated. We survey the current literature on such displays, including teleoperation and flight simulator work. We describe a study that investigates the effects of background resolution, AOI size, and gaze-to-window movement delays in a search task similar to gaze-contingent FLIR (infrared) system, in a SAR (search and rescue) task. The study found AOI window size (5 degrees or 8 degrees) to be the most important factor in performance. The low-resolution backgrounds (1 cy/degree or 0.5 cy/degree Gaussian blur, or blank) used in the study did not aid performance, which was best when a blank background was used. AOI motion delay (15 or 115 msec) was not noticed by subject and only slightly affected performance, but was found to induce a severe and previously unreported disruption of saccadic eye movements. The results are interpreted to define important measures and critical design aspects for AOI and FLIR display design.
Keywords
High resolution displays;Variable resolution displays;Gaze contingent displays
Report Number
DCIEM-97-CR-06 — Contractor Report
Date of publication
01 Apr 1997
Number of Pages
75
DSTKIM No
97-02715
CANDIS No
502975
Format(s):
Hardcopy;Document Image stored on Optical Disk

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