Ergonomic Design Development of the Visual Experience Database Headset

Head-mounted devices allow recording of eye movements, head movements, and scene video outside of the traditional laboratory setting. A key challenge for recording comprehensive first-person stimuli and behavior outside the lab is the form factor of the head-mounted assembly. It should be mounted stably on the head to minimize slippage and maximize accuracy of the data; it should be as unobtrusive and comfortable as possible to allow for natural behaviors and enable longer duration recordings; and it should be able to fit a diverse user population. Here, we survey preliminary design iterations of the Visual Experience Database headset, an assembly consisting of the Pupil Core eye tracker, the Intel RealSense T265 ™ (T265) tracking camera, and the FLIR Chameleon™3 (FLIR) world camera. Strengths and weaknesses of each iteration are explored and documented with the goal of informing future ergonomic design efforts for similar head-mounted systems.