Gaze Tracker

Video-based Tracking
Our gaze tracking module applies a special cornea reflex method. It senses the user's current point of fixation (lines-of-sight of both eyes) at a rate of 50 Hz with a single stationary camera. Due to the wide-angle optics, the user may move in a range of 30x30x30cm.
Using sensor fusion techniques, the various tracking modules may be combined to set-up novel interaction tools allowing smart applications. For example, a new and very natural pointing tool is created by combining the head (pupil) tracker with the hand (finger tip) tracker; with such a tool the user can easily control the position of a marker on the screen by pointing in the desired direction. Tracking the users gaze vector allows a speech recognition engines to react more reliable and context sensitive.
Specifications
| Sampling rate | 50 Hz |
| Data output | Origin Dynasight (TM) (serial) Polhemus (TM) (serial) DCOM |
| Position accuracy | < 1.0 ° |
| Tracking range | 30cm x 30cm x 30cm |
Fraunhofer Institute for Telecommunications
Heinrich-Hertz-Institut
Interactive Media - Human Factors
Einsteinufer 37
10587 Berlin
Germany
