EyeLink II Scene Camera User Manual
©
2004-2007 SR Research Ltd.
13
Figure
2-4: EyeLink II Scene Camera Depth Setup
Screen
2.4.1 Purpose
This screen (Figure 2-4) is used to correct for depth parallax (i.e., inaccuracy in
the gaze cursor drawing) in the scene camera overlay caused by the separation
between the participant’s eye and the scene camera. If both eyes are being
tracked, the binocular data can be used to correct at other viewing depths.
This screen allows the experimenter to collect several extra fixations on targets
presented at significantly different depths (see section 4.6 for full details).
2.4.2 Main Functions
Press Return to the EyeLink II tracker
setup screen.
Keys: Enter = return to camera setup
Press Help (F1) to access the online
help page for Camera Setup. All
available key shortcuts are also listed
on the Help screen.
Keys: F1 = open Help screen
If enabled, draws a single gaze cursor,
representing the average of the two
eyes. If disabled, gaze cursors are
drawn separately for each eye.
Keys: B = Binocular or Cyclopean gaze
cursor
If enabled, depth correction, if
available, will be applied to the gaze
positions in the overlay graphics (see
section 4.5 for details).
Keys: D = Enable/Disable vergence-
based depth correction for gaze cursor
drawing.
If pressed, this will clear all of the data
points collected for depth adjustment.
Keys: R = Restart collection (clear data).
If pressed, this will keep the existing
data points collected and improve upon
