Knowledge-based augmented reality
Communications of the ACM - Special issue on computer augmented environments: back to the real world
Comparative effectiveness of augmented reality in object assembly
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
VRAIS '98 Proceedings of the Virtual Reality Annual International Symposium
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Computer-assisted instruction (CAI) using a head-up display (HUD) is a new way of providing information on operating complicated equipment. A head-mounted display (HMD) with a camera enables head-up interaction, presenting information related to what a user is looking at. We previously examined a practical HUD-based CAI system used to operate a transportable earth station. In our trial, participants using the HUD-based CAI system performed better than those using other media such as printed material and laptop PCs. However, it was not clear which part of the system was responsible for the improved performance. To clarify this, we conducted a laboratory experiment in which participants read articles and answers questions about them. The goals were to evaluate how readable the display of the HMD is, how easy it is to search information using the system, and how the system affects work efficiency. Participants using the HUD system found the articles faster, but took longer to read the articles and to answer the questions than participants using other media.