Installation Instructions

IntelliGaze™ Installation & Service Manual Using IntelliGaze™

5 Using IntelliGaze™

5.1 Principle of operation

The IntelliGaze™ system allows the user to control specialized, e.g. AAC, applications as well as many

standard Windows applications through eye-movements.

A camera and illumination system mounted underneath the monitor receives images of

the users face under invisible near-infrared illumination. A background PC program ana-

lyzes the images in real-time and extracts face and eye locations. High resolution image

processing algorithms calculate the gaze angle of the user. By calculating the intersection

point of these gaze-vectors with the monitor, the system can determine the gaze location on the

screen. Heuristics and configurable filtering are applied to synchronize the mouse-cursor with the cal-

culated gaze location. Mouse-clicks can be triggered by either dwelling on a certain region or blinking.

The user may also use external switches or buttons to trigger the click.

A new user needs to be calibrated to the system, before the gaze control can be used. The gaze track-

ing and 'click' control can be adopted to the user requirements and the target application.

5.2 Environment

The IG-30 and IG-30NT has been designed for indoor use. The equipment should be used in an office-

like environment.

General Considerations

Provide

●

Well lit, comfortable seating or bed-site condition.

●

The subject should be comfortable and stably positioned.

●

Ideally both eyes should be clearly visible from the camera position.

If one eye is covered, please refer to the monocular options in the calibration settings.

●

The monitor-camera combination should have room and sufficient degrees of freedom to

achieve a good position in-front of the user. We do highly recommend the use of monitor

arms.

Avoid

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Direct Sun-Light.

●

Direct exposure to secondary IR sources like halogen bulbs, etc.

●

Complex prescription glasses like bi-focals, etc.

Version: 3.0