Configuring the Tobii Pro Nano eye tracker with a standard display

Learn how to configure your Pro Nano eye tracker with a standard display.

 

At this stage, you should have installed the drivers on your computer and mounted the Tobii Pro Nano on the screen. The next step will enable you to configure your eye tracker with your display. This configuration step enables the eye tracker to identify the relative location of the screen and map the gaze points accordingly. 

Eye Tracker Manger screen setup

Configuring the eye tracker with the screen:

  1. Open the Eye Tracker Manager. If your eye tracker card does not show up, wait for 1 minute, if it still does not show up unplug the eye tracker from the USB port and reinsert it.  If this does not work, please restart your computer and run the installation again.
  2. Click on the eye tracker card.
  3. On the Overview tab, locate the Display setup setting and click the meatball icon (...) next to the text box. On the dropdown menu click New.
  4. Select Regular setup and click the Next button.
  5. If you are using two screens in your eye tracking setup, select the screen where the eye tracker is mounted. The Eye Tracker Manager window will stay on or jump to the screen you select. Click the Next button.
  6. Next, Measure the distance between the bottom of your display area and the eye tracker. Type the value, in millimeters, in the Distance from X to Y text box. Once you are done click the Next button.
  7. Drag the handles on the dotted lines so they align with the full width of the eye tracker or the two marks on top of the eye tracker (it depends on the eye tracker model). It is very important to be as careful and precise as possible when performing this step because a wrongly performed configuration may result in offsets in the eye tracking data. When you have finished aligning, click the Next button.
  8. Give your screen configuration a name so that you can recover the settings later. Type it in the Display Setup Name text box, then click the Save button. Your configuration is now available and selected in the Display setup drop-down menu. 

After you have completed configuring the eye tracker with the screen, test your setup to troubleshoot any error made during the mounting and configuration phases.

  1. Make sure you carefully followed the previous instructions.
  2. To check if the eye tracker can detect your eyes, enable the Position guide. In the position guide window, you should be able to see two circles in a face contour and the detected gaze data indicator bars should be full (see image below).
  3. Test your setup by performing a calibration and start exploring your eye tracking solution.
Position guide

Testing your eye tracker configuration and setup

After configuring your eye tracker run a calibration to test if the eye tracker is mapping the gaze points correctly to your display.

To test your eye tracking setup: 

  1. Make sure the eye tracker is attached to the monitor and connected to your computer.
  2. Open the Eye Tracker Manager. 
  3. Click on the eye tracker card. If your eye tracker card does not show up, wait for 1 minute, if it still does not show up unplug the eye tracker cable and reinsert it. If this does not work, please restart your computer and run the installation and configuration again.
  4. When you are ready, test whether the eye tracker can detect your eyes. First, position yourself in front of the screen.
  5. On the Overview tab, locate the Calibrate button and click it. 
  6. If you are using two screens in your eye tracking setup, select the screen where the eye tracker is mounted. The Eye Tracker Manager window will stay on or jump to the screen you select. Click the Next button.
  7. Use the position guide window to adjust your position in front of the eye tracker. If your eyes are within range of the eye tracker cameras, you should be able to see two circles in a face contour and the detected gaze data indicator bars should be full. To adjust the distance move your head until the background of the window turns green and the head fits the oval shape (see image above). If you cannot see the two circles and the window is red, try to move around until they appear in the track status window. If this does not work, ask someone else to sit in front of the eye tracker and position them at the right distance. Ultimately, if you are still unsuccessful please restart your computer and run the installation and configuration procedures again.
  8. Next, click the Calibrate button and follow the on-screen instructions.
  9. Evaluate your calibration results. Large systematic errors i.e. a large distance between the average gaze point and the target gaze point may be indicative of a configuration error. No calibration feedback data on the targets located on the top of the screen may indicate that there is a mismatch between the screen size and eye tracker configuration. 
  10. Click the Recalibrate button to try to improve an unsuccessful calibration (e.g. recalibrating points with missing data).
  11. Click the Use calibration button when you wish to complete your calibration procedure.

 

You are now ready to start using your setup

After installing and setting up the eye tracker use it to perform your research in Tobii Pro Lab, in your own applications with the Tobii Pro SDK or in any third-party application built on the Tobii Pro SDK.

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