Tobii Pro Fusion User manual

Pro Fusion
User Manual

Pro Fusion User Manual
Version 2.2
11/2020
All rights reserved.
Copyright © Tobii Pro AB (publ)
The information contained in this document is proprietary to
Tobii Pro AB. Any reproduction in part or whole without prior written
authorization by Tobii Pro AB is prohibited.
Products that are referred to in this document may be either trade-
marks and/or registered trademarks of the respective owners. The
publisher and the author make no claim to these trademarks.
While every precaution has been taken in the preparation of this
document, the publisher and the author assume no responsibility for
errors or omissions, or for damages resulting from the use of
information contained in this document or from the use of programs
and source code that may accompany it. In no event shall the
publisher and the author be liable for any loss of profit or any other
commercial damage caused or alleged to have been caused directly
or indirectly by this document.
Content subject to change without notice.
Please visit Tobii Pro Connect for updated versions of this doc-
ument.

Pro Fusion User Manual v.2.2 3
Table of Contents
1 Introduction 5
1.1 Symbols used in this document 5
1.2 Tobii Pro Eye Tracker Manager 5
2 System Requirements 7
2.1 Pro Fusion System requirements 7
2.2 Additional software options 7
3 Safety 8
3.1 Mounting warning 8
3.2 Emergency warning 8
3.3 Epilepsy warning 8
3.4 Infrared warning 8
3.5 Magnetic field warning 9
3.6 Child safety 9
3.7 Electricity 9
3.8 Accessories 9
3.9 Third party 9
3.10 Power supply 9
4 Overview of Tobii Pro Fusion 10
4.1 Product versions 10
4.2 Key features 11
4.3 How Tobii Pro Fusion works 11
4.4 What’s in the Pro Fusion box 12
4.5 USB and power adapter 13
4.6 How to use the USB Type-A to Type-C adapter 14
4.7 Attach the adapter plug 15
4.8 Remove the adapter plug from the AC power adapter 15
4.9 Tobii Pro accessories 16
4.10 Additional software options 16
5 Set up your Tobii Pro eye tracker 17
5.1 Download and install Tobii Pro Eye Tracker Manager 17
5.2 Install Pro Fusion in Tobii Pro Eye Tracker Manager 17
5.3 Mount the eye tracker on a laptop or monitor 17
5.4 Display setup in Tobii Pro Eye Tracker Manager 20
5.5 Calibration 20
5.5.1 What calibration does 21
5.6 Detach the eye tracker 21
5.7 Change Pro Fusion’s frequency 22
6 Display Setups 23
6.1 Standard setup 23
6.2 Advanced setup 23
6.2.1 Setup with Tobii Pro Tripod Stand 23
7 Start Experimenting 25
7.1 Start eye tracking 25
7.2 Tobii Pro Lab 25

Pro Fusion User Manual v.2.2 4
7.3 Keeping your eye tracker software and display setup updated 25
7.4 Customer Support 26
8 Product Care 27
8.1 Operational environment 27
8.2 Transportation and storage 27
8.3 Cleaning 27
8.4 Disposal of the eye tracker 27
8.5 Limitation of liability 27
9 Technical Specifications 28
9.1 Eye tracking specifications 28
9.2 Setup 29
9.3 Software compatibility 29
9.4 Hardware versions 29
9.5 Pro Fusion eye tracker specifications 29
10 Compliance Information 31
10.1 CE Compliance 31
10.2 VCCI Compliance 31
10.3 General Compliance 31
10.3.1 FCC interference statement 31
10.3.2 Industry Canada statement 31
10.3.3 CE statement 31
10.3.4 Safety compliance 31
10.3.5 EMC compliance 32
Appendix A Support, Learning Center, and Warranty 33
A1 CustomerSupport 33
A1.1 Get help online 33
A2 Learning Center 33
A3 Warranty information 33
Appendix B Limitations and considerations 34
B1 Intended use 34
B2 Light conditions 34
B3 Eyelashes 34
B4 Droopy eyelids 34
Appendix C Glossary 35

Pro Fusion User Manual v.2.2 5
1 Introduction
Tobii Pro Fusion is a compact, high performance data collection solution that you can take into the
field. Use Pro Fusion when your research takes you to locations and to subjects that would oth-
erwise be hard to bring to the lab. You can collect data in schools, hospitals, libraries, and other loc-
ations where your subjects are easier to recruit.
With sampling frequencies of up to 250 Hz, two eye tracking cameras, and two pupil tracking modes
(bright and dark pupil), Pro Fusion enables you to adapt your data collection setup to different
research populations, scenarios, and data requirements.
Use Pro Fusion for studies on:
lWindows laptop and desktop computers
lPC monitors, 24″ (16:9) or less as optimum size
lReal-world setups such as physical objects and social interactions (using the Tripod Stand)
lProjections, simulators, and larger screens (using the Tripod Stand)
Tobii Pro Fusion is primarily designed for use in indoor office environments with adult participants.
1.1 Symbols used in this document
Three different symbols are used in this document:
The Information symbol means something is important or needs special attention.
xxxxxxxxx
The Tip symbol denotes additional information that can make a process or function
easier.
The Warning symbol means there is a possible risk of harm if the warning is ignored.
1.2 Tobii Pro Eye Tracker Manager
Tobii Pro Eye Tracker Manager is free software available on Tobii Pro Connect.
Pro Eye Tracker Manager helps you manage your Tobii Pro eye tracker. It lets you see which eye
tracker firmware and software versions you are running and also facilitates updates (where applic-
able). It provides:
lDrivers and Firmware installation or updates
lDisplay setup
lPositioning guide
lUser calibration
lGaze visualization*

Pro Fusion User Manual v.2.2 6
*Gaze visualization in Pro Eye Tracker Manager lets you quickly evaluate the quality of the eye track-
ing data. The Gaze visualization overlaps data only on the Pro Eye Tracker Manager screen while
Pro Eye Tracker Manager is open.
References in product documentation to Tobii Pro Eye Tracker Manager refer to the
latest version available on Tobii Pro’s website.

Pro Fusion User Manual v.2.2 7
2 System Requirements
2.1 Pro Fusion System requirements
Operating system: Windows 10
macOS 10.14 Mojave and later
CPU: 1 GHz, 2 cores
RAM: 2 GB RAM memory*
*Software for eye tracking research may require higher RAM
Port: USB Type-A or USB Type-C
2.2 Additional software options
Pro Lab
tobiipro.com/product-listing/tobii-pro-lab/
Pro Lab is a comprehensive research software platform
for eye tracking designed to meet the highest demands
on different research scenarios with exact timing accur-
acy. This software offers an efficient workflow, making
it easy to design experiments, record data, analyze and
visualize eye tracking data, and to sync this data with
other biometric data streams.
Pro SDK
tobiipro.com/product-listing/tobii-pro-sdk/
Pro SDK offers a broad set of tools that makes it simple
to develop a variety of niche applications or scripts
across multiple platforms, using a wide range of pro-
gramming languages. This SDK gives the researcher
access to the full set of relevant gaze data streams,
such as 3D eye coordinates, raw data, pupil data, etc.
Third-party software This term refers to any application built on Pro SDK.

Pro Fusion User Manual v.2.2 8
3 Safety
3.1 Mounting warning
Tobii Pro eye trackers should be mounted according to Tobii Pro´s instructions for
approved mounts.
The mounting bracket is designed for adhesion to a wide variety of surfaces, such as mon-
itors or laptop screens. It is also designed for clean removability. Failure to follow the
recommended removal instructions can result in damage to both the monitor/laptop and
the mounting bracket. Do not mount the eye tracker on monitors positioned above the
head or face of a user, as it might fall.
3.2 Emergency warning
Tobii Pro eye trackers are designed to be used only for research purposes. Be aware
that due to the low, but possible risk of failure or distraction, the eye tracker should not be
relied upon or used in dangerous or critical situations.
3.3 Epilepsy warning
Some people with photosensitive epilepsy are susceptible to epileptic seizures or loss of
consciousness when exposed to certain flashing lights or light patterns in everyday life.
This may happen even if the person has no medical history of epilepsy or has never had
any epileptic seizures.
A person with photosensitive epilepsy would also be likely to have problems with TV
screens, some arcade games, and flickering fluorescent bulbs. Such people may have a
seizure while watching certain images or patterns on a monitor, or even when exposed to
the light sources of an eye tracker. It is estimated that about 3-5% of people with epilepsy
have this type of photosensitive epilepsy. Many people with photosensitive epilepsy
experience an “aura” or feel odd sensations before the seizure occurs. If you feel odd dur-
ing use, move your eyes away from the eye tracker.
3.4 Infrared warning
When activated, the Tobii Pro eye tracker emits pulsed infrared (IR) light. Certain med-
ical devices are susceptible to disturbance by IR light and/or radiation. Do not use the eye
tracker in the vicinity of these kinds of susceptible medical devices, as their accuracy or
proper functionality could be inhibited. Do not stare into the LED lights at a close distance
(<15cm).

Pro Fusion User Manual v.2.2 9
3.5 Magnetic field warning
This Tobii Pro eye tracker contains magnets. Magnetic fields may interfere with the func-
tion of cardiac pacemakers and implantable cardioverter defibrillators. As a general rule,
maintain a minimum distance of 6 inches (15 centimeters) between any item with mag-
nets and your heart device.
3.6 Child safety
A Tobii Pro eye tracker is an advanced computer system and electronic device. As such,
it is composed of numerous separate, assembled parts. In the hands of a child, some of
these parts have the possibility of being separated from the device, possibly resulting in a
choking hazard or other danger to the child.
Young children should not have access to, nor use of the device or its accessories
without parental or guardian supervision.
3.7 Electricity
Do not open the casing of the Tobii Pro eye tracker, this could expose you to potentially
hazardous electrical voltage. The device contains no user-serviceable parts. Non-
compliance will result in loss of warranty! Contact Tobii Pro Support if your eye tracker is
not working properly.
3.8 Accessories
Only use accessories provided by or approved by Tobii Pro AB.
3.9 Third party
Any use of a Tobii Pro eye tracker outside the intended use and together with any third-
party software or hardware that changes the intended use is a risk, and Tobii Pro AB can
not take any responsibility in these situations.
3.10 Power supply
Only use the AC power adapter provided by Tobii Pro to power your Tobii Pro eye
tracker. If the AC power adapter is damaged, it should be replaced only by Tobii Pro Ser-
vice Personnel. If damaged, do not use the AC power adapter until it has been replaced.
Tobii Pro and its agents are not liable for any damages or injuries to a person or property
due to incorrect use of the provided accessories.

Pro Fusion User Manual v.2.2 10
4 Overview of Tobii Pro Fusion
Tobii Pro Fusion is the next generation of compact high-performance eye trackers from Tobii Pro. It
provides a flexible solution that supports different research scenarios and study designs.
Pro Fusion has a slim design that integrates well with external monitors up to 24 inches and laptop
screens. The eye tracker can also be mounted on a tripod and coupled with a scene camera so it
can be used in study setups that use real-world stimuli such as physical objects or scenes. The
sampling speed of up to 250 Hz allows you to capture data for a wide range of experimental
paradigms (fixation, smooth pursuit, and saccade-based).
With high, selectable, sampling rates (up to 250 Hz), two eye tracking cameras and two pupil
tracking modes (bright and dark pupil), Pro Fusion enables you to adapt your data collection
setup to different research populations, scenarios, and date requirements.
Use Pro Fusion for studies on:
lWindows laptop and desktop computers
lPC monitors, 24″ (16:9) or less
lReal-world setups such as physical objects and social interactions (using the Tripod Stand)
lLarger screens, projections, simulators (using the Tripod Stand)
4.1 Product versions
Pro Fusion is available in two different product versions: 120 Hz and 250 Hz. The 120 Hz version
can be upgraded to the faster version by contacting your sales representative.

Pro Fusion User Manual v.2.2 11
4.2 Key features
4.3 How Tobii Pro Fusion works
During tracking, eye trackers from Tobii Pro use infrared illuminators to generate reflection patterns
on the corneas of the participant’s eyes. These reflection patterns, together with other visual data
about the participant, are collected by image sensors. Sophisticated image processing algorithms
identify relevant features, including the eyes and the corneal reflection patterns. Tobii Pro Fusion is a
dual camera system that automatically chooses when to use dark or bright pupil tracking. Complex
mathematics is used to calculate the 3D position of each eyeball along with the gaze point (where
the participant is looking).

Pro Fusion User Manual v.2.2 12
4.4 What’s in the Pro Fusion box
# Item Additional information
1 Travel case Stores, protects, and carries Pro Fusion and the included
accessories
2 Pro Fusion eye tracker Used for eye tracking

Pro Fusion User Manual v.2.2 13
3 AC power adapter Provides the additional power required when the USB
Type-A to Type-C adapter is used
4 Safety and Compliance Printed versions of important information
5 USB Type-A to Type-C
adapter plug
Used when the computer does not have a USB Type-C
port
6 6 International plug
adapters
Used with the AC power adapter to match international
outlets
7 Cleaning cloth For cleaning the surface of the eye tracker
8 Four mounting plates with
non-permanent adhesive
Attaches the Pro Fusion eye tracker to the screen bezel
9 Four cleaning wipes Removes any dust and grease in the area around the
screen before attaching a mounting plate
4.5 USB and power adapter
Figure 1. The fixed USB cable is on the right side of Pro Fusion and the power supply port is on the
left side The left side of the Pro Fusion eye tracker has a jack for plugging in the AC power adapter.
The right side of the Pro Fusion eye tracker has a fixed USB cable that plugs into the computer’s
Type-C port or into a Type-A port using the included USB Type-A to Type-C adapter. For more
information, read How to use the USB Type-A to Type-C adapter.

Pro Fusion User Manual v.2.2 14
When using the Type-A to Type-C adapter, you should also use the AC power adapter
since Type-A ports can deliver less power. Your computer’s power settings can also influ-
ence the amount of power delivered to peripherals.
4.6 How to use the USB Type-A to Type-C adapter
Pro Fusion is connected to a computer via a standard USB Type-C interface.
The USB Type-C interface enables a better user experience over the older Type-A interface due to
its higher data transfer rate, symmetrical connector which eliminates the “right side up” problem, and
increased power. If your computer doesnot have a USB Type-C connection, you must use the
included USB Type-A to Type-C adapter and the power adapter with your Pro Fusion.
Figure 2. USB Type-A to Type-C adapter
What to do:
1. Plug the USB Type-A to Type-C adapter into the USB end of the cable.
2. Plug the cable with the adapter into the computer.
3. Attach the correct adapter plug for your country to the AC power adapter. For more inform-
ation, read Attach the adapter plug.
4. Plug the AC power adapter into the left-hand side jack on the eye tracker.
5. Plug the AC power adapter and adapter plug into a power outlet.

Pro Fusion User Manual v.2.2 15
4.7 Attach the adapter plug
Figure 3. International plug adapters
How to use the international adapter plugs:
1. Select the correct plug adapter for your region.
2. Line up the rounded top of the plug adapter with the top of the AC power adapter.
3. Click the adapter plug into the AC power adapter at an angle, starting with the upper part first
and then the lower part.
Figure 4. Snap in the adapter plug, starting at the rounded top
4.8 Remove the adapter plug from the AC power adapter
When storing the AC power adapter in the eye tracker case, you will need to remove the adapter
plug so that it fits in the case. You may also need to exchange one plug adapter for another if you
travel with your eye tracker to another country.

Pro Fusion User Manual v.2.2 16
How to remove an adapter plug:
1. Use your thumb to draw the latch underneath the AC power adapter down to release the clip.
2. Remove the adapter plug starting by withdrawing the lower part first and then the upper part.
4.9 Tobii Pro accessories
Find out more about Tobii Pro products and accessories on tobiipro.com.
4.10 Additional software options
Pro Lab
tobiipro.com/product-listing/tobii-pro-lab/
Pro Lab is a comprehensive research software platform
for eye tracking designed to meet the highest demands
on different research scenarios with exact timing accur-
acy. This software offers an efficient workflow, making
it easy to design experiments, record data, analyze and
visualize eye tracking data, and to sync this data with
other biometric data streams.
Pro SDK
tobiipro.com/product-listing/tobii-pro-sdk/
Pro SDK offers a broad set of tools that makes it simple
to develop a variety of niche applications or scripts
across multiple platforms, using a wide range of pro-
gramming languages. This SDK gives the researcher
access to the full set of relevant gaze data streams,
such as 3D eye coordinates, raw data, pupil data, etc.
Third-party software This term refers to any application built on Pro SDK.

Pro Fusion User Manual v.2.2 17
5 Set up your Tobii Pro eye tracker
At the end of this setup, you will have a verified installation that is ready for use.
5.1 Download and install Tobii Pro Eye Tracker Manager
The first step is to get the free software, Pro Eye Tracker Manager on your computer. Setting up
your eye tracker involves installing the necessary drivers and software on your computer. Pro Eye
Tracker Manager makes this easy. For more information, read Tobii Pro Eye Tracker Manager.
Your eye tracker does not need to be connected to the computer to install Pro Eye
Tracker Manager.
1. Before starting, double-check the hardware and system requirements, System Require-
ments. You should also check the requirements for your analysis software, for example, Tobii
Pro Lab.
2. Download Pro Eye Tracker Manager from the Tobii Pro product page.
3. Open Pro Eye Tracker Manager and follow the prompts to finish installation.
5.2 Install Pro Fusion in Tobii Pro Eye Tracker Manager
Now it’s time to make sure your computer can communicate with your eye tracker. This is necessary
for downloading the proper driver updates.
1. Open Pro Eye Tracker Manager if it is not already open.
2. Connect Pro Fusion's USB cable to a Type-C port in your computer. If your computer does
not have a USB Type-C port, read How to use the USB Type-A to Type-C adapter. Do not
mount the eye tracker just yet, just plug in the USB so you can make sure everything’s work-
ing.
If the included USB Type-A to Type-C adapter is used then the AC power adapter must
also be used.
3. If your Pro Fusion is connected to the USB port but doesn’t appear in the list of connected
eye trackers, click the plus (+) symbol in the upper right corner to install (or reinstall in some
cases) the required drivers. Sometimes removing the USB and plugging it in again is neces-
sary.
4. Select Pro Fusion and click the Install button.
5. Follow the prompts in Pro Eye Tracker Manager to finish the installation.
5.3 Mount the eye tracker on a laptop or monitor
To ensure quality in eye tracking data, the Pro Fusion hardware package includes several mounting
brackets that can be affixed to a laptop or monitor. You can easily snap the eye tracker on and off the
laptop using the magnetic mounting bracket. The mounting bracket sticks to the frame with a special

Pro Fusion User Manual v.2.2 18
adhesive that doesn’t damage the underlying surface when the bracket is removed. For more inform-
ation, read Detach the eye tracker.
If the screen bezel is thinner than the height of the eye tracker, affix the mounting bracket
as low as possible on the screen frame, or directly on the screen. Don’t use this setup if
you intend to put stimuli in the lower part of the screen, as they might become covered by
the eye tracker.
Some laptops are very thin and there is little space between the screen and the keyboard
when the laptop is closed. We recommend that you check whether the laptop can close
with the mounting bracket present before you attach it.
What to do:
1. Make sure the eye tracker is attached to the monitor and connected to your computer. Open
Pro Eye Tracker Manager. You should be able to see and expand your eye tracker’s “card” in
Pro Eye Tracker Manager. The serial number of your eye tracker should match the number
displayed.
2. You can leave your eye tracker USB cable connected with the eye tracker to the side (for
example on the table) or you can disconnect it while you attach the mounting bracket.
3. If you plan to attach the eye tracker to a laptop, make sure the laptop can close with the mag-
netic mounting bracket attached. Some laptops have very little space when closed.
You can test whether you can close the laptop with the mounting bracket by placing the
mounting bracket (with the backing paper still attached) on the keyboard side of the
laptop and carefully closing the laptop lid. Watch for any potential interference between
the screen, bracket, and keyboard.
4. Find the center of the screen and clean the bezel with one of the included cleaning wipes.
5. Peel the adhesive tape off the mounting bracket and mount it on the bezel so that your Pro
Fusion is as close to the bottom of the screen as possible without covering the screen. Press
the bracket against the bezel for 30 seconds and wait one hour before attaching the eye
tracker.

Pro Fusion User Manual v.2.2 19
Figure 5. Align the eye tracker properly with the mounting bracket. The magnet holds the eye
tracker firmly in place when the slots are lined up correctly.
6. Attach the eye tracker, making sure that it aligns properly with the mounting bracket. The
magnet holds the eye tracker firmly in place when the slots are lined up correctly.
Figure 6. Place the mounting bracket on the bezel so that the Pro Fusion is as close to the bot-
tom of the screen as possible without covering the screen.

Pro Fusion User Manual v.2.2 20
7. If it is not yet connected, plug in the eye tracker’s USB cable to the correct USB port in your
computer.
The included USB Type-A to Type-C adapter and the eye tracker AC power adapter
must be used if the computer does not have a USB Type-C port. For more information,
read How to use the USB Type-A to Type-C adapter.
8. Move to the next step.
5.4 Display setup in Tobii Pro Eye Tracker Manager
Now the algorithms on the eye tracker need to understand where the eye tracker is in relation to the
screen and map the gaze points accordingly.
1. Open Pro Eye Tracker Manager if it’s not already running, and select your eye tracker.
2. On the Overview tab, locate Display Setup and click the ellipsis icon to the right. On the drop-
down menu, click New.
3. Select Regular setup and click the Next button.
4. If multiple screens are used, select the screen that has the Pro Fusion attached to its bezel.
5. Enter the position of the eye tracker in relation to the screen. Use the radio buttons to select
whether the eye tracker is positioned under or over the screen and enter the measurement in
millimeters.
6. Align the dotted orange lines on the screen with the two outer white marks on the top of your
Pro Fusion.
7. Save your display by naming the setup and clicking the Save button.
8. To confirm that Pro Fusion can detect your eyes, enable the Position Guide at the bottom left
of Pro Eye Tracker Manager. Once activated, you should be able to see two “eyes” in a face
contour.
9. Move to the next step. In the next section, you will test your setup by performing a calibration.
For more information, read Calibration.
You can always return to Pro Eye Tracker Manager and use it when you change com-
puters or screens or want to recalibrate.
5.5 Calibration
When you are done configuring your eye tracker, you should run a calibration to test to see if the eye
tracker is mapping the gaze points correctly to your display.
How to test your eye tracking setup in Pro Eye Tracker Manager:
1. Make sure the eye tracker is attached to the screen bezel and connected to your computer.
Open Pro Eye Tracker Manager. For more information, read Tobii Pro Eye Tracker
Manager.