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 rate50 Hz
Data outputOrigin Dynasight (TM) (serial)
Polhemus (TM) (serial)
DCOM
Position accuracy< 1.0 °
Tracking range30cm x 30cm x 30cm

Contact person

Dipl.-Ing. Klaus Hopf
Tel. +49 30 31002-581
Fax +49 30 31002-558

Fraunhofer Institute for Telecommunications
Heinrich-Hertz-Institut
Interactive Media - Human Factors

Einsteinufer 37
10587 Berlin
Germany