PROCEEDINGS of the HUMAN FACTORS SOCIETY 34th ANNUAL MEETING1990 Symbolic Enhancement of Perspective Displays

Two exocentric azimuth judgement experiments with a perspective display were conducted with 16 subjects. Previous work has shown these judgements to exhibit a bias possibly due to misinterpretation of the viewing parameters used to generate the display. Though geometric compensations may be used to correct for the bias, an alternate te'chnique se-lected in the following 2 experiments was the introduction of symbolic enhancements in the form of compass roses. It is suggested that a compass rose with 30 " divisions results in overall optimal azimuth estimation accuracy when accu-racy and decision time are both considered. The data also suggest that the added radial lines on the compass roses may interact with normalization processes that influence the judgement errors