Abstract
An experiment was conducted to compare a helmet-mounted display (HMD) and a hand-held display (HHD) in respect to operators’ performance and experience. Ground vehicles and helicopters had to be detected in a computer simulation of a traffic scenario in an artificial city. The target objects were presented on HMD or HHD before appearing in the traffic scenario. Beside the performance variables detection time and detection frequency, questionnaire variables of workload and of simulator sickness have been determined by the “Belastungsverlaufstest (BLV)” and the “Simulator Sickness Questionnaire (SSQ)”. 12 subjects participated twice in the experiment with a trial duration of 140 minutes. The performance data show a consistent trend towards higher detection times and lower hit rates with the HMD. In most subscales of the BLV and the SSQ the HMD exhibits significantly higher scores than the HHD.
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