How do the Tobii Glasses 2 work?
Eye tracking has long been known and used as a method to study the visual attention of individuals. There are several different techniques to detect and track the movements of the eyes. However, when it comes to remote, non‐intrusive eye tracking the most commonly used technique is the pupil center corneal reflection (PCCR). The basic concept is to use a light source to illuminate the eye causing highly visible reflections, and a camera to capture an image of the eye showing these reflections.
For the TobiiPro Glasses 2, there are two cameras per eye to identify the reflection of the light source on the cornea (glint) and in the pupil. What is measured eventually are fixations and saccades in milliseconds.
Combined with the measurement of the fixations and saccades, the glasses also record a video feed of what the participant is looking at, with a camera in the front of the glasses. It is also possible to use Think Aloud Protocol with the glasses thanks to the integrated microphone in the glasses.
How to use the Tobii Glasses 2
- Start Dell Venue tablet
- Put Tobii Glasses on
- Turn on the Tobii unit (make sure battery is charged)
- Connect Tobii and Tablet with Wifi
- Start the Tobii Controller App on the Tablet PC
- Create/use (new) Project
- Create/use (new) Participant
- Click on the Tobii Live View tab
- Calibrate the Tobii Glasses
- Start Recording
- Stop when done
- Start the Tobii Analyzer
- Create/use Project
- Import Tobii Glasses data from the SD card
- Start Analyzing
- Create Heatmaps
For details check the Practical User Manual TobiiPro Glasses 2.
- Quick start guide
- Pocked guide – Eye Tracking
- Analysis Software – see Quantitative Analysis and Qualitative Analysis
- Tobii Snapshots – see Analyser manual (page 14)
- Tobii Heat maps – see Analyser manual (page 22 and 44)
- Gaze plots -see Working with Heat Maps and Gaze Plots
- Tobii Eye tracking setup
- Youtube tutorials