If you place the test participant farther away from the object you can track larger objects, if you place the test participant closer
to the object you can track smaller objects. If you place a test participant at 65 cm (26
ʺ
) you can track a 25
ʺ
(16:9) monitor. Re-
gardless of the distance to the object the eye tracker should always be placed approximately 65 cm (26
ʺ
) from the participant.
For more information about supported monitor sizes please see
Appendix B Recommended Display Sizes, page 28
6.1
Freedom of Head Movement
The Tobii X2 Eye Tracker allows for extensive head movement. Once the Tobii X2 Eye Tracker is properly calibrated and placed
in front of the user, no further adjustments are required.
The Tobii X2 Eye Tracker allows for head movements of 50 x 36 cm (20 x 14
ʺ
) (Width x Height) at the distance of 70 cm (27.5
ʺ
)
from the eye tracker. Depending on factors such as droopy eyelids, visual aids and other characteristics of the eye, the optimal
distance between the participant and the eye tracker varies. The typical tracking distance limit from the center of the eye tracker
is 45
–
90 cm (15.7
–
33.5
ʺ
) for the Tobii X2 Eye Tracker.
In order to be tracked properly, the participant that is being eye-tracked needs to have at least one eye in the track box at all
times.
20
6 Positioning
Tobii X2-30 Eye Tracker User
’
s manual v.1.0.3 - en-US
Содержание X2-30
Страница 1: ...U Us se er r s s M Ma an nu ua all T To ob bi ii i X X2 2 3 30 0 E Ey ye e T Tr ra ac ck ke er r...
Страница 2: ......
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Страница 6: ...F2 Compliance Information 33 F2 1 FCC Statement 33 F2 2 Industry Canada Statement 33 F2 3 Standards 33...
Страница 41: ...35...
