BEGIN:VCALENDAR VERSION:2.0 PRODID:Linklings LLC BEGIN:VTIMEZONE TZID:Australia/Melbourne X-LIC-LOCATION:Australia/Melbourne BEGIN:DAYLIGHT TZOFFSETFROM:+1000 TZOFFSETTO:+1100 TZNAME:AEDT DTSTART:19721003T020000 RRULE:FREQ=YEARLY;BYMONTH=4;BYDAY=1SU END:DAYLIGHT BEGIN:STANDARD DTSTART:19721003T020000 TZOFFSETFROM:+1100 TZOFFSETTO:+1000 TZNAME:AEST RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=1SU END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20240214T070245Z LOCATION:Meeting Room C4.9+C4.10\, Level 4 (Convention Centre) DTSTART;TZID=Australia/Melbourne:20231213T165000 DTEND;TZID=Australia/Melbourne:20231213T170500 UID:siggraphasia_SIGGRAPH Asia 2023_sess126_papers_282@linklings.com SUMMARY:The Shortest Route Is Not Always the Fastest: Probability-Modeled Stereoscopic Eye Movement Completion Time in VR DESCRIPTION:Technical Communications, Technical Papers\n\nBudmonde Duinkha rjav and Benjamin Liang (New York University), Anjul Patney and Rachel Bro wn (NVIDIA Research), and Qi Sun (New York University)\n\nSpeed and consis tency of target-shifting play a crucial role in human ability to perform c omplex tasks. Shifting our gaze between objects of interest quickly and co nsistently requires changes both in depth and direction. Gaze changes in d epth are driven by slow, inconsistent vergence movements which rotate the eyes in opposite directions, while changes in direction are driven by ball istic, consistent movements called saccades, which rotate the eyes in the same direction. In the natural world, most of our eye movements are a comb ination of both types. While scientific consensus on the nature of saccade s exists, vergence and combined movements remain less understood and agree d upon.\n\nWe eschew the lack of scientific consensus in favor of proposin g an operationalized computational model which predicts the speed of any t ype of gaze movement during target-shifting in 3D. To this end, we conduct a psychophysical study in a stereo VR environment to collect more than 12 ,000 gaze movement trials, analyze the temporal distribution of the observ ed gaze movements, and fit a probabilistic model to the data. We perform a series of objective measurements and user studies to validate the model. The results demonstrate its predictive accuracy, generalization, as well a s applications for optimizing visual performance by altering content place ment. Lastly, we leverage the model to measure differences in human target -changing time relative to the natural world, as well as suggest scene-awa re projection depth. By incorporating the complexities and randomness of h uman oculomotor control, we hope this research will support new behavior-a ware metrics for VR/AR display design, interface layout, and gaze-continge nt rendering.\n\nRegistration Category: Full Access\n\nSession Chair: Jin Ryong Kim (TBU) URL:https://asia.siggraph.org/2023/full-program?id=papers_282&sess=sess126 END:VEVENT END:VCALENDAR