Abstract
Head-mounted displays (HMDs) have great potential to improve the current situation of car drivers. They provide every benefit of a head-up display (HUD), while at the same time showing more flexibility in usage. We built an infotainment system specifically designed to be displayed in an HMD. With this system, we then conducted a dual task study in a driving simulation, comparing different techniques of content stabilization (head- and cockpit stabilized visualizations). Interaction with the system took place via a physical input device (rotary controller) or indirect pointing gestures. While cockpit-stabilized content generally resulted in a slightly better driving performance, HMD visualizations suffered from technological limitations, partly reflected in the secondary task performance and subjective feedback. Regarding input modality, we found that horizontal gesture interaction significantly influenced the quality of lane keeping. Apparently, horizontal interaction with the one hand caused unintentional steering with the other.
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