4.3
Recording eye-tracking data from mobile devices with Tobii Pro Studio
and Mobile Device Stand
Before you continue, make sure you have installed the latest version of Tobii Pro Studio on the Windows computer
you intend to use.
The Tobii Pro Mobile Device Stand solution will only work with the stimuli type “Scene camera” in Tobii Pro Studio. Most of the
configuration will therefore be done through the Scene Camera Element Setup dialog.
Procedure for installing the Tobii Pro Mobile Device Stand scene camera (Logitech HD Pro Webcam C920):
1.
Insert the scene camera USB connector into one of the USB ports of the computer running Tobii Studio.
2.
Installation will start automatically. Follow the installation guide. Note: Because the driver is retrieved online, the com-
puter needs an internet connection
procedure for opening the Scene Camera Element Setup dialog in Tobii Studio:
1.
Make sure the eye tracker and the scene camera USB cable are connected to the computer. (If you are using a Tobii
Pro X2-60 Eye Tracker, the eye tracker USB cable should be connected to the external processing unit and the Ethernet
cable should connect the external processing unit to your computer.)
2.
Start the Tobii Studio Software and create a new project and a new test. (See Tobii Studio User Manual)
3.
Select the Design and Record tab.
4.
If not already connected, connect the eye tracker to Tobii Studio. (See Tobii Studio User Manual)
5.
Drag and drop a Scene Camera stimuli to the Tobii Studio study time line. The Scene Camera Element Setup dialog will
appear.
Procedure for configuring the scene camera:
1.
In the Scene Camera Element Setup dialog, select Logitech HD Pro Webcam C920 in the Video Source drop down
menu. The preview will now show the scene camera feed.
2.
While looking at the Preview, adjust the scene camera angle in the scene camera holder so that the entire Calibration
Board is visible in the preview window.
3.
To open Camera Settings Properties, click Camera Settings. The Camera Settings Properties dialog will appear and
you can adjust a large number of camera settings. Most of these settings can be left as they are but we recommended
that you verify and optimize the settings for your setup to get a good quality video recording of the mobile device. Autofo-
cus should always be turned off and focus needs to be set manually.
4.
To turn off autofocus, select the Camera Settings dialog to the left of the preview video. Select the Camera Control tab,
then deselect the check box next to Autofocus. If the preview video is not in focus, move the slider to change focus and
18
4 Configuring Eye Trackers from Tobii Pro with the Mobile Device
Stand
Tobii Pro Mobile Device Stand User’s manual v.1.0.8 - en-US
Содержание Mobile Device Stand
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