IntelliGaze™ Installation & Service Manual Gaze Assistant
If the Fixation Test fails its recommended to go back to the target selection page, choose a different target and
repeat the fixation test to check if this helps the user to react to the target better.
9.2.4 Field of View Test
The Field of View Tests evaluates if the users is able to react to the gaze target on every critical position
of the screen. The test confirms that the users reacts to the target on several screen positions and there
are no eye tracking problems in that position. The test is binocular therefore it's possible to identify the
problems per eye.
The test will move the gaze target across several lines on the screen. The user is supposed to follow the
dot while the system measures the eye movements during that process.
As a result you will get a visual representation of the scan path per eye.
FOV-Test Parameter Description
Red line Left eye Scan path of the left eye
Green line Right eye Scan path of the right eye
Black line Combined eyes Scan path of the intelligent gaze combination of left
and right eye.
The lines don't have to be very accurate. The test is supposed to reveal a meaningful reaction to the moving
gaze target. A meaningful reaction is a straight line, no matter where the line is.
© alea technologies gmbh, 2015
Version: 3.0
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