Effects of Transparency and Controller Type on Performance in A Multi-Layer Display

Abstract

Augmented reality application development faces the challenge of balancing key information visualization with user’s cognitive constraints. Virtual Reality Rehab, Inc. is developing an application blending augmented reality (AR) with synthetic vision for use in complex, time-sensitive military operations. This study investigated the effects of controller use and transparency on marker placement speed and accuracy. Method: Participants were required to mark targets by placing icons on the synthetic environment using either a mouse, speech recognition, or Xbox One controller. They were also asked to recall AR building labels. For each scenario, the display was set to 100%, 25%, 50%, or 75% transparency. Results: The 50% transparency condition resulted in the lowest speed and accuracy, while 25% and 75% were not significantly different. Participants performed the best while using the Xbox One controller. Discussion: Findings suggest that transparency should be investigated within the context of task, controller type, and interface design.