Target Detection Performance For Head Mounted Indirect Vision Displays

Participants used a helmet-mounted display (HMD) and a touchscreen monitor to detect targets across 3 different approaches to display 360 degrees video for indirect vision display systems. A within-subject design was used with targets ranging from dismounted, mounted, and aerial targets. The number of targets detected, workload, and usability of each condition was measured. The HMD condition produced significantly more targets detected overall and within each type of target type compared to the monitor condition. HMD use also produced a significantly lower level of mental workload as measured by the NASA TLX and achieved a significantly higher level of usability compared to the other conditions. Possible reasons for these differences are discussed along with discussion on future studies using HMDs and mixed reality technology for indirect vision display systems.