Effects of system lag on head-tracked cursor control

Steven P. Rogers; V. Alan Spiker; Susan C. Fischer

doi:10.1117/12.276644

18 June 1997 Effects of system lag on head-tracked cursor control

Steven P. Rogers, V. Alan Spiker, Susan C. Fischer

Proceedings Volume 3058, Head-Mounted Displays II; (1997) https://doi.org/10.1117/12.276644
Event: AeroSense '97, 1997, Orlando, FL, United States

Abstract

An experiment was conducted to assess the effects of system lag on head tracking performance when positioning a cursor on a stable target. Seven values of lag were tested: 0, 20, 40, 60, 80, 100, and 120 msec. To assess potential interactions, the effects of lag were examined in combination with movement distance and direction. The task was to move a head-tracked cursor to a target that appeared on a six-inch CRT screen in an analog of time and that lag was linearly related to acquisition time, accounting for an increase in target acquisition time of approximately 7 millisecond of lag. Furthermore, the effects of lag on performance were evident with lags as brief as 20 msec.

Citation Download Citation

Steven P. Rogers, V. Alan Spiker, and Susan C. Fischer "Effects of system lag on head-tracked cursor control", Proc. SPIE 3058, Head-Mounted Displays II, (18 June 1997); https://doi.org/10.1117/12.276644

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