4.2
Typical Tobii Pro X3–120 Eye Tracker Physical Object Setup
When studying a stimuli that doesn’t have a screen or when studying an external device such as a mobile phone, a physical ob-
ject setup needs to be used where a video or web camera captures the image of the stimuli.
To record the participant’s reactions, the conversation between the test leader and test participant, you need to connect an ad-
ditional camera and microphone to the computer running Tobii Pro Studio. The setups below do not include the user camera
and user sound.
Physical Object Setup
4.2.1
External video stimulus recording
This setup is suitable when using a Tobii Eye Tracking system for eye tracking data analysis when the stimulus is presented from
a separate computer or other RGB or VGA sources. This could include a computer game, a DVD player, or when stimulus is
presented on a computer running a different operating system. The computer running Tobii Pro Studio must be equipped with
an additional video capture card.
Note that if the external application runs on the Windows operating system, and it does not use 3D graphics accelera-
tion or it does not have a high processor load and high memory usage, it may be more suitable and less complex to in-
stead run this on the same computer as Tobii Pro Studio and use the Screen Recording option in Tobii Pro Studio.
For this setup, the image from the Tobii Pro Studio computer has to be displayed on the screen during calibration (to display the
calibration points). The external stimulus computer, however, should be shown on the screen during the actual test. Both devi-
ces must therefore be connected to the same screen. To switch between the inputs, use a switch or a screen that allows for
multiple input sources. The image shown on the screen must be sent to Tobii Pro Studio to record the video stream and syn-
chronize it with the gaze data. If the stimulus is presented from an analogue video source, e.g., a VCR or an analogue video cam-
era, a similar setup with slightly modified components can be used.
External Video Stimulus Recording Setup
Tobii Pro X3–120 Eye Tracker Product Description v.1.0.2 - en-US
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