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User Manual
Tobii Eye Tracker and ClearView analysis software
© Tobii Technology AB, 2006
Background color
For maximum accuracy, we
strongly recommend setting the
background of the calibration
screen to a color which is close in
light intensity to that of the stimuli
used during recording. If the
calibration screen is very dark, and
the stimuli very bright, a large
degree of drift may occur which
decreases the accuracy. The
default calibration background is
suitable for most web-site studies,
since they are generally rather
bright.
Object color
Always set the object color to a
shade which provides good
contrast to the selected
background.
Normal Calibration settings
Speed. The speed for the normal
calibration routine can be selected.
Dot size. The size of the
calibration dot for the normal
calibration routine can be selected.
Infant calibration settings
Big attention grabbing AVI A
full screen AVI to redirect subject
attention to the screen – specified
in Study settings as “Attention
grabbing AVIs”
Calibration AVI A small AVI
displayed at the calibration point
for calibration – specified in Study
settings as “Calibration AVI”Small
attention grabbing AVIs small
AVIs positioned at the calibration
point, but not used for calibration
– these AVIs should be placed in
the ClearView Stimuli folder and
be named 1.avi, 2.avi, … 9.avi.
With ClearView,default movies
suitable for infant calibration are
provided. A bouncing ball to be
used for calibration and a number
of small attention grabbing AVIs
can be found in the ClearView
Samples package (compliments of
Scott Johnson at NYU).
Advanced
In some very specialized
applications it might be of use to
calibrate part of the screen only.
In the advanced settings the
region of the screen to calibrate
can be changed.
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