A comparative study of eye tracking and hand controller for aiming tasks in virtual reality

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PubDate: June 2019

Teams: Blekinge Institute of Technology

Writers: Francisco Lopez Luro;Veronica Sundstedt

PDF: A comparative study of eye tracking and hand controller for aiming tasks in virtual reality

Abstract

Aiming is key for virtual reality (VR) interaction, and it is often done using VR controllers. Recent eye-tracking integrations in commercial VR head-mounted displays (HMDs) call for further research on usability and performance aspects to better determine possibilities and limitations. This paper presents a user study exploring gaze aiming in VR compared to a traditional controller in an “aim and shoot” task. Different speeds of targets and trajectories were studied. Qualitative data was gathered using the system usability scale (SUS) and cognitive load (NASA TLX) questionnaires. Results show a lower perceived cognitive load using gaze aiming and on par usability scale. Gaze aiming produced on par task duration but lower accuracy on most conditions. Lastly, the trajectory of the target significantly affected the orientation of the HMD in relation to the target’s location. The results show potential using gaze aiming in VR and motivate further research.

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