Handheld Guides in Inspection Tasks: Augmented Reality versus Picture

Area of Science:

• Human-Computer Interaction
• Industrial Engineering
• Cognitive Psychology

Background:

• Industrial inspection tasks often rely on paper manuals, leading to inefficiencies due to information matching and gaze shifts.
• Augmented reality (AR) offers potential to overlay digital information onto the physical environment, improving efficiency.
• Head-mounted display AR (HMD-AR) shows efficiency gains, but handheld AR (HAR) offers better practicality and information sharing.

Purpose of the Study:

• To compare the efficiency of a handheld augmented reality (HAR) interface with a non-AR picture interface for inspection tasks.
• To evaluate performance in tasks requiring high information density, user movement, and viewpoint alignment.

Main Methods:

• A comparative study was conducted using two handheld guides: a 3D registered annotation AR interface and a non-registered annotation picture interface.
• Participants performed inspection tasks with high information density, involving movement and viewpoint alignment.

Main Results:

• The AR interface resulted in significantly lower task completion times compared to the picture interface.
• Fewer errors and fewer gaze shifts were observed when using the AR interface.
• Subjective workload was also lower for participants using the AR interface.

Conclusions:

• Handheld AR, specifically with 3D registered annotations, enhances inspection task performance by reducing time, errors, and cognitive load.
• This study provides novel insights into HAR effectiveness for dynamic inspection tasks with viewpoint alignment requirements.
• Findings are valuable for AR developers and researchers in human-computer interaction and industrial applications.