抄録
Head-up display (HUD) is an automotive driver assistance system that displays images on the windshield for presenting important information. To design a user-friendly HUD, understanding how HUD design parameters can affect the processing of visual information is important. In this study, the effects of image projection and image distance on the processing of visual information, especially under conditions wherein the image is displayed at a great distance, were analyzed. Furthermore, how these effects vary with age was examined. The eye tracking method was employed to estimate the time required solely for visual input processing. By comparing the results obtained from the young and elderly participants, it was observed that HUD design parameters have different effects on visual information processing with respect to the two participant groups. Therefore, thoroughly evaluating the effects of HUD design parameters on the cognitive process (which could not be evaluated through eye tracking) and spatial localization (which was performed before the input process) is necessary.
