PT Journal
AU Pfeiffer, T
   Latoschik, M
   Wachsmuth, I
TI Evaluation of Binocular Eye Trackers and Algorithms for 3D Gaze Interaction in Virtual Reality Environments
SO JVRB - Journal of Virtual Reality and Broadcasting
PY 2008
VL 5(2008)
IS 16
DI 10.20385/1860-2037/5.2008.16
DE Eye Tracking; Human-Computer Interaction; Object Selection; Virtual Reality
AB Tracking user’s visual attention is a fundamental aspectin novel human-computer interaction paradigmsfound in Virtual Reality. For example, multimodal interfacesor dialogue-based communications with virtualand real agents greatly benefit from the analysis ofthe user’s visual attention as a vital source for deicticreferences or turn-taking signals. Current approachesto determine visual attention rely primarily on monoculareye trackers. Hence they are restricted to the interpretationof two-dimensional fixations relative to adefined area of projection.The study presented in this article compares precision,accuracy and application performance of twobinocular eye tracking devices. Two algorithms arecompared which derive depth information as requiredfor visual attention-based 3D interfaces. This informationis further applied to an improved VR selectiontask in which a binocular eye tracker and an adaptiveneural network algorithm is used during the disambiguationof partly occluded objects.
ER