Tobii X2-30 User manual

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Tobii X2-30 Eye Tracker User’s manual
Version 1.0.3
06/2014
All rig ts reserved.
© Tobii Tec nology AB
T e information contained in t is document is proprietary to
Tobii Tec nology. Any reproduction in part or w ole wit out
prior written aut orization by Tobii Tec nology is pro ibited.
Products t at are referred to in t is document may be eit er
trademarks and/or registered trademarks of t e respective
owners. T e publis er and t e aut or make no claim to t ese
trademarks.
W ile every precaution as been taken in t e preparation of
t is document, t e publis er and t e aut or assume no
responsibility for errors or omissions, or for damages resulting
from t e use of information contained in t is document or
from t e use of programs and source code t at may
accompany it. In no event s all t e publis er and t e aut or
be liable for any loss of profit or any ot er commercial
damage caused or alleged to ave been caused directly or
indirectly by t is document.
Content subject to c ange wit out notice.
Please c eck Tobii web site www.tobii.com for updated
versions of t is document.

Table of Contents
11 IInnttrroodduuccttiioonn.................................................................................................................................................................................................................................................................... 11
1.1 Overview...............................................................................................................................1
1.2 Basic Operating Principles ......................................................................................................1
22 HHaarrddwwaarree PPaacckkaaggee CCoonntteenntt................................................................................................................................................................................................................ 22
2.1 Standard Package..................................................................................................................2
2.2 Available Accessories .............................................................................................................2
33 PPrroodduucctt CCaarree................................................................................................................................................................................................................................................................ 44
3.1 Temperature & Humidity..........................................................................................................4
3.1.1 General use............................................................................................................4
3.1.2 Transportation and storage.......................................................................................4
3.2 Cleaning ...............................................................................................................................4
3.3 Transporting t e Tobii X2 Eye Tracker .......................................................................................4
3.4 Disposing of t e Tobii X2 Eye Tracker .......................................................................................4
44 SSeettttiinngg UUpp tt ee XX22 EEyyee TTrraacckkeerr........................................................................................................................................................................................................ 55
4.1 Prerequisites..........................................................................................................................5
4.2 Mounting t e Eye Tracker ........................................................................................................5
4.2.1 Mounting t e Tobii X2 Eye Tracker to a Screen ...........................................................5
4.2.2 Mounting t e Tobii X2 Eye Tracker Using a Desk Stand/Tripod......................................8
4.3 Tobii Eye Tracker Installer........................................................................................................8
4.4 Installingadditional software ..................................................................................................11
4.5 Re-configuring t e Tobii X2 Eye Tracker ..................................................................................12
55 TT ee XX CCoonnffiigguurraattiioonn TTooooll......................................................................................................................................................................................................................1155
5.1 Reference Measurement Point of t e Tobii X2 Eye Tracker .........................................................15
5.2 Setting t e parameters in t e X Configuration Tool....................................................................16
66 PPoossiittiioonniinngg....................................................................................................................................................................................................................................................................1199
6.1 Freedom of Head Movement..................................................................................................20
77 TTyyppiiccaall SSeettuuppss........................................................................................................................................................................................................................................................2211
7.1 Single Screen Setup.............................................................................................................21
7.2 Local Live Viewer Setups.......................................................................................................22
7.3 P ysical Object Setup...........................................................................................................23
7.4 External Video Stimulus Recording..........................................................................................24
AAppppeennddiixx AA TToobbiiii XX22––3300 EEyyee TTrraacckkeerr SSppeecciiffiiccaattiioonnss ......................................................................................................................................2255
AAppppeennddiixx BB RReeccoommmmeennddeedd DDiissppllaayy SSiizzeess ........................................................................................................................................................................2288
AAppppeennddiixx CC DDaattaa OOuuttppuutt................................................................................................................................................................................................................................2299
AAppppeennddiixx DD GGlloossssaarryy............................................................................................................................................................................................................................................3300
AAppppeennddiixx EE HHooww ttoo uuppggrraaddee tt ee ffiirrmmwwaarree..........................................................................................................................................................................3311
AAppppeennddiixx FF SSaaffeettyy aanndd CCoommpplliiaannccee ............................................................................................................................................................................................3322
F1 Safety.................................................................................................................................32
F1.1 Mounting Warning.................................................................................................32
F1.2 Emergency Warning ..............................................................................................32
F1.3 Infrared Warning ...................................................................................................32
F1.4 Epilepsy Warning ..................................................................................................32
F1.5 Magnetic Field Warning .........................................................................................32
F1.6 C ild Safety..........................................................................................................33
F1.7 Do not Open t e Tobii X2–30 Eye Tracker ................................................................33

F2 Compliance Information.........................................................................................................33
F2.1 FCC Statement.....................................................................................................33
F2.2 Industry Canada Statement ....................................................................................33
F2.3 Standards............................................................................................................33

1 Introduction
1.1 Overview
T is document describes t e features and functionality of t e Tobii X2–30 Eye Tracker. T e X2 Eye Tracker is a stand-alone eye
tracker t at can be used in various setups by attac ing it to monitors, laptops or for performing eye tracking on p ysical objects.
T e eye tracker requires some assembly before first time use and after transport.
T e Tobii X2 Eye Tracker is an unobtrusive eye tracker for detailed researc of natural be avior. Its large freedom of ead move-
ment allows t e participant to move during recording w ile maintaining accuracy and precision. T e Tobii X2 Eye Tracker offer
maximum flexibility wit numerous software and stimuli setup options.
T e Tobii X2–30 is a small eye trackers measuring only 184 mm (7.2’’) in lengt . It enables your portable eye tracking lab and
studies t at require an eye tracker to track even large objects at close distances (up to 36° gaze angle). Use t e eye trackers to
conduct studies on:
•Laptops
•PC monitors up to app. 25ʺ(16:9)
•Mobile devices
•Real-world interfaces
•Projections, simulators
•TV screens
1.2 Basic Operating Principles
During tracking, Tobii Eye Trackers use infrared illuminators to generate reflection patterns on t e corneas of t e participant’s
eyes. T ese reflection patterns, toget er wit ot er visual data about t e participant, are collected by image sensors. Sop isti-
cated image processing algorit ms identify relevant features, including t e eyes and t e corneal reflection patterns. Complex
mat ematics is used to calculate t e 3D position of eac eyeball, and finally t e gaze point; in ot er words, w ere t e participant
is looking.
Tobii Eye Trackers are designed for use in indoor office environments.
Tobii X2-30 Eye TrackerUser ’s manual v.1.0.3 - en-US 1 Introduction 1

2 Hardware Package Content
2.1 Standard Package
T e standard Tobii X2–30 Eye Tracker package contains t e following main parts:
•Tobii X2-30 Eye Tracker Compact Edition
•Two ad esive mounting brackets for permanent
installation.
•USB extension cable
•Tobii X2-30 Eye Tracker USB memory stick containing t e
Tobii Eye Tracker Installer
•Safety and Compliance paper —please read t is before
starting to use t e Tobii X2 Eye Tracker.
•Installation Guide —Illustrated mounting instructions for
attac ing t e eye tracker on a screen.
•Zipper bag To be used for transporting t e eye tracker unit.
•Tobii X2-30 Eye Tracker user manual Tobii X2–30 Eye Tracker User Manual (pdf).
2.2 Available Accessories
•Tobii X2 Eye Tracker Laptop Case Laptop case specially designed for transporting t e Tobii X2 Eye Tracker
toget er wit your laptop in one single case.
•Tobii Mobile Device Testing Solution for X2 T e Tobii Mobile Device Testing Solution enables collection of eye track-
ing data during natural interaction wit smartp ones, tablet computers
and ot er devices or objects of similar size suc as books or broc ures.
22 Hardware Package Content Tobii X2-30 Eye Tracker User’s manual v.1.0.3 - en-US

•Additional Mounting Brackets T e mounting brackets package includes more ad esive mounting brack-
ets and enables additional ways of attac ing t e eye tracker to monitors
and ot er objects.
•Tobii X2 Eye Tracker Desk Stand Package:
–Tobii X2 Eye Tracker desk stand
package
–Digital angle gauge
–Measuring tape
–Small tripod
–Tripod screw nut
T e desk stand is to be used for setups w ere t e eye tracker is not at-
tac ed to t e screen w ere t e stimuli are presented, suc as projection
screen setups. It can be mounted on a tripod. For instructions on ow to
mount t e eye tracker using t e desk stand, please see
4.2.2 Mounting
t e Tobii X2 Eye Tracker Using a Desk Stand/Tripod, page 8
T e digital angle gauge and t e measuring tape are provided for t e
measurements needed in t ese kind of setups. Please read
5 T e X Con-
figuration Tool, page 15
Tobii X2-30 Eye TrackerUser ’s manual v.1.0.3 - en-US 2 Hardware Package Content 3

3 Product Care
3.1 Te perature & Hu idity
3.1.1 General use
T e Tobii X2 Eye Tracker is best kept in dry conditions at room temperature. T e recommended range for temperature and t e
umidity value for t e device is as follows:
•TTeemmppeerraattuurree: 0°C to 40°C (32°F to 104°F)
•HHuummiiddiittyy: Max 70% (no condensation on t e device)
3.1.2 Transportation and storage
For transportation and storage, t e recommended range for temperature and t e umidity value for t e device is as follows:
•TTeemmppeerraattuurree: -40°C to 70°C (-40°F to 158°F)
•HHuummiiddiittyy: 20% to 70% (no condensation on t e device)
T e Tobii X2 Eye Tracker is not waterproof or water resistant. T e device s ould not be kept in excessively umid,
damp or wet conditions. Do not submerge t e device in water or in any ot er liquid. Be careful not to allow liquids to
be spilled upon t e device.
3.2 Cleaning
Before cleaning t e Tobii X2 Eye Tracker device s ut down t e computer to w ic it is attac ed and unplug all cables. Use a
soft, slig tly damp, lint-free clot . Avoid getting moisture in openings on t e device. Don’t use window cleaners, ouse old
cleaners, aerosol sprays, solvents, alco ol, ammonia, or abrasives to clean t e device.
Please be aware t at scratc es on t e front surface of t e eye tracker may result in impaired eye tracking
performances.
3.3 Transporting the Tobii X2 Eye Tracker
Disconnect all t e cables and use t e zipper bag provided.
W en you transport t e device for repair or s ipment, use t e original casing and packaging materials.
3.4 Disposing of the Tobii X2 Eye Tracker
Do not dispose of t e Tobii X2 Eye Trackers in general ouse old or office waste. Follow your local regulations for t e disposal
of electrical and electronic equipment.
43 Product Care Tobii X2-30 Eye Tracker User’s manual v.1.0.3 - en-US

4 Setting Up the X2 Eye Tracker
T e main steps you need to perform in order to set up and configure t e Tobii X2 Eye Tracker are:
1. C eck t at you ave all t e components needed —read
2 Hardware Package Content, page 2 .
2. C eck t e prerequisites in
4.1 Prerequisites, page 5 .
3. Mount t e X2 Eye Tracker, according to t e setup t at you will use —read
4.2 Mounting t e Eye Tracker, page 5 .
4. Install t e prerequisites from t e provided USB memory stick —read
4.3 Tobii Eye Tracker Installer, page 8 .
5. Run t e configuration software —read
5 T e X Configuration Tool, page 15 .
6. Install t e supported eye tracking software, suc as Tobii Studio or t e Tobii SDK.
You can also watc t e instructional video on t e provided USB memory stick —
Installation and Basic Configuration
Tobii X2 Eye Trackers.mp4
—for t e main setup and configuration steps to be performed w en installing t e Tobii X2
Eye Tracker.
4.1 Prerequisites
Before starting to mount and use your Tobii X2 Eye Tracker, you need to make sure t at:
•Your computer is compatible wit t e software t at you are going to use (Tobii Studio or ot er eye tracking software).
T e latest version of t e Tobii System Requirements and Recommendations document is available on t e Tobii website
at www.tobii.com.
•You ave administrator rig ts for t e computer t at you are using in order to be able to install and run t e installation and
configuration software.
•T e screen used for presenting t e stimuli as a proper size and form factor to be used wit t e eye tracker t at you ave.
Please read
Appendix B Recommended Display Sizes, page 28
•You are using eit er Windows 7 or Windows 8 as an operating system.
•T e firewall(s) t at you mig t ave on t e computer allow access for t e eye tracking software.
•You are using USB 2.0. T e Tobii X2 Eye Tracker does not support t e USB 3.0.
•Always try out t e Tobii X2 Eye Tracker before attac ing it permanently to t e screen in order to make sure t at it works
properly in conjunction to your screen.
4.2 Mounting the Eye Tracker
T is section describes t e steps you need to perform in order to assemble and mount t e X2 eye tracker, depending on t e set-
up type:
•
4.2.1 Mounting t e Tobii X2 Eye Tracker to a Screen, page 5 .
•
4.2.2 Mounting t e Tobii X2 Eye Tracker Using a Desk Stand/Tripod, page 8 .
4.2.1 Mounting t e Tobii X2 Eye Tracker to a Screen
For mounting t e Tobii X2 Eye Tracker to a laptop or monitor you use one of t e ad esive mounting brackets provided in t e
standard package or in t e additional mounting brackets kit (accessories).
Standard package mounting brackets
Tobii X2-30 Eye TrackerUser ’s manual v.1.0.3 - en-US 4 Setting Up t e X2 Eye Tracker 5

Additional mounting brackets (mounting bracket kit)
1. C oose one of t e mounting brackets provided in t e Tobii X2 Eye
Tracker package. If you are using one of t e mounting brackets
from t e additional mounting brackets kit, c oose t e rig t bracket
t at best fits t e type of screen t at you are going to connect t e
eye tracker to (see illustrative picture on t e rig t). Try out t e
mounting bracket on t e screen to see w ic bracket works for
your screen.
2. Make sure t at t e area w ere t e Tobii X2 Eye Tracker is going to
be mounted is free from dust and dirt. If you clean it using a wet
wipe, make sure t at t e area is completely dry before proceeding
wit t e next step.
3. Measure and locate t e middle of t e bottom frame of t e screen.
You will use t is as a reference w en positioning t e mounting
bracket (step 5).
4. Peel off t e ad esive tape on t e back of t e mounting bracket.
Please be aware t at t e ad esive tape on t e back of t e
mounting bracket is permanent, meaning t at once you at-
tac it to your screen, you won’t be able to remove it.
Use ot er non-permanent double-sided tape for non-per-
manent mounting.
Standard package mounting brackets
64 Setting Up t e X2 Eye Tracker Tobii X2-30 Eye Tracker User’s manual v.1.0.3 - en-US

Additional mounting brackets (mounting bracket kit)
5. Position t e mounting bracket on t e bottom frame of your screen.
Make sure t at it is centered exactly in t e middle point of t e
screen bottom frame as s own in t e picture.
Standard package mounting brackets
Additional mounting brackets (mounting bracket kit)
6. Apply pressure to t e mounting bracket for 30 seconds to make
sure it gets attac ed to t e screen.
Standard package mounting brackets and additional
mounting brackets (mounting bracket kit)
7. Allow one our for t e ad esive on t e mounting bracket to cure
and become permanently attac ed to t e screen before attac ing
t e eye tracker unit.
8. Position t e Tobii X2 Eye Tracker and attac it to t e mounting
bracket as s own in t e figure to t e rig t. Make sure to position it
in t e rig t way so t at t e mounting bracket fits exactly in t e slot
on t e back of t e eye tracker. T e magnet inside will keep t e eye
tracker in place.
Do NOT connect t e Tobii X2 Eye Tracker to t e computer
before running t e installation software provided on t e USB memory stick . Connecting t e eye tracker prematurely
can lead to t e eye tracker not being installed properly.
Tobii X2-30 Eye TrackerUser ’s manual v.1.0.3 - en-US 4 Setting Up t e X2 Eye Tracker 7

4.2.2 Mounting t e Tobii X2 Eye Tracker Using a Desk Stand/Tripod
A desk stand is available as an accessory for t e Tobii X2 Eye Trackers, and it is to be used for setups w ere t e eye tracker is
not attac ed to t e screen w ere t e stimuli are presented, suc as projection screen setups. It can be mounted on a tripod wit
t e supplied tripod screw nut. A typical setup using t e Tobii X2 Eye Tracker mounted on a tripod is described in section
7.3
P ysical Object Setup, page 23
.
To mount t e Tobii X2 Eye Tracker on t e desk stand:
1. Position t e Tobii X2 Eye Tracker and attac it to t e mounting
bracket. Make sure to position it in t e rig t way so t at t e mount-
ing bracket fits exactly in its slot on t e back of t e eye tracker.
2. T e desk stand is made out of bendable metal. You can c ange t e tilt angle of t e eye tracker by bending t e desk stand
firmly by and. Remove t e eye tracker before bending t e desk stand.
Please note t at w en you use a setup w ere t e eye tracker is not mounted on t e screen used for presenting t e
stimuli, you need to run t e X Configuration Tool to configure t e corresponding distances and angles. Please read
section
5 T e X Configuration Tool, page 15 .
4.3 Tobii Eye Tracker Installer
In order to install t e needed prerequisites and to configure t e eye tracker for your screen you ave to run t e Tobii Eye Tracker
Installer t at you can find on t e provided USB memory stick or you can download it from t e Tobii website at www.tobii.com.
T e Tobii X2 Eye Tracker s ould be mounted before running t e Tobii Eye Tracker Installer, but not connected to t e
computer.
Do NOT connect t e Tobii X2 Eye Tracker to t e computer before running t e installation software provided on t e
USB memory stick. Connecting t e eye tracker prematurely can lead to software compatibility issues as t e wrong
drivers may t en automatically be installed by Windows.
If you move t e eye tracker to anot er computer or attac it to anot er screen you must always run t e Tobii Eye Track-
er Installer again to configure t e eye tracker for t e new setup.
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Please note t at you need to ave administrator rig ts in order to be able to install and run t e software.
1. Plug in t e provided USB memory stick in t e computer t at t e Tobii X2 Eye Tracker is going to be connected to.
2. Run t e Setup application t at you can find on t e USB memory stick and follow t e on-screen instructions, as described
in t e following steps.
3. W en you start t e Tobii Eye Tracker Installer it opens wit a Welcome screen. In order to be able to continue wit t e in-
stallation you need to confirm t at you acknowledge and agree to t e conditions of t e end-user license agreement by
c ecking t e tick-box:
84 Setting Up t e X2 Eye Tracker Tobii X2-30 Eye Tracker User’s manual v.1.0.3 - en-US

4. Click t e Start button. You will be directed to t e Firmware and Drivers screen. Please wait w ile t e needed drivers and
firmware are being installed. You can see t e status on t e screen:
5. W en all t e software is successfully installed, click t e Next button. You will be directed to t e Select Eye Tracker
screen.
6. Connect t e Tobii X2 Eye Tracker to a USB 2.0 port on your computer by using t e provided USB cable. Use an USB
extension cable if needed. If you are using a Tobii X2–60 Eye Tracker wit an external processing unit, first you need to
connect t e eye tracker USB cable to t e external processing unit and t en connect t e external processing unit to t e
computer by using an Et ernet cable.
7. Click to select your Tobii X2 Eye Tracker from t e list of t e discovered Tobii Eye Trackers in t e Tobii Eye Tracker Instal-
ler window:
Tobii X2-30 Eye TrackerUser ’s manual v.1.0.3 - en-US 4 Setting Up t e X2 Eye Tracker 9

8. Click t e Next button. You will be directed to t e Select Display Monitor screen
9. Specify on w ic of t e screens connected to your computer t e Tobii X2 eye tracker is mounted. If you are unsure w ic
screen is t e one t at t e eye tracker is attac ed to, click t e Identify button. You will see a number displayed on eac
screen so t at you can identify it.
10. Click t e Next button. You will be directed to t e Map to Display Monitor screen. In t e following steps you will configure
w ere t e eye tracker is positioned relative to t e active display area of t e screen:
10 4 Setting Up t e X2 Eye Tracker Tobii X2-30 Eye Tracker User’s manual v.1.0.3 - en-US

11. Click t e Start mapping button. T e mapping screen will be displayed on t e monitor t e eye tracker is attac ed to (t e
monitor you previously selected in step 9).
12. Drag t e andles on t e dotted lines to align t em wit t e mounted Tobii X2 Eye Tracker:
•for t e Tobii X2 Eye Tracker —align t e dotted lines wit t e outer margins of t e eye tracker.
It is very important to be as careful and precise as possible w en performing t is step because a wrongly per-
formed configuration may result in offsets in t e eye tracking data.
W en you ave finis ed aligning, click t e I’m done button. You will get back to t e Map to Display Monitor screen of t e
Tobii Eye Tracker Installer.
13. Click Next. You will get a notification message t at your system is ready for eye tracking.
14. Click Exit or close t e Tobii Eye Tracker Installer window to exit t e application.
4.4 Installing additional software
After installing and setting up t e eye tracker, you need to install ot er software t at you intend to use suc as Tobii Studio or To-
bii SDK. Please see t e respective software user manuals for detailed instructions.
Tobii X2-30 Eye TrackerUser ’s manual v.1.0.3 - en-US 4 Setting Up t e X2 Eye Tracker 11

4.5 Re-configuring the Tobii X2 Eye Tracker
If you move t e Tobii X2 Eye Tracker to anot er computer you must always run t e Tobii Eye Tracker Installer on t at computer
to configure t e eye tracker for t e new setup. If you move t e eye tracker between different computers, monitors or setups you
must always re-configure t e Tobii X2 Eye Tracker settings for it to work properly.
To re-configure t e Tobii X2 Eye Tracker:
1. Make sure t e Tobii X2 Eye Tracker is attac ed to t e monitor and connected to your computer and t at t e Tobii X2
Eye Tracker Installer as been installed on t e computer before you re-configure t e eye tracker.
2. Find and open t e Tobii Eye Tracking (32–bit) configuration tool in t e Windows Control Panel.
3. Select t e eye tracker you wis to re-configure from t e drop down list.
4. To re-configure t e Tobii X2 Eye Tracker for your monitor, click t e Set Up button.
5. Specify on w ic of t e monitors connected to your computer t e Tobii X2 eye tracker is mounted (if you only ave one
monitor connected to your computer t is setting will not appear and you will be taken to t e next step). If you are unsure
w ic monitor is t e one t at t e eye tracker is attac ed to, click t e Identify button. You will see a number displayed on
eac monitor so t at you can identify it. Click Next to proceed.
12 4 Setting Up t e X2 Eye Tracker Tobii X2-30 Eye Tracker User’s manual v.1.0.3 - en-US

6. Click t e Start mapping button. T e mapping screen will be displayed on t e monitor t e eye tracker is attac ed to.
7. Drag t e andles on t e dotted lines to align t em wit t e mounted Tobii X2 Eye Tracker. Precisely align t e dotted lines
wit t e outer edges of t e eye tracker.
Tobii X2-30 Eye TrackerUser ’s manual v.1.0.3 - en-US 4 Setting Up t e X2 Eye Tracker 13

It is very important to be as careful and precise as possible w en performing t is step because a wrongly per-
formed configuration may result in offsets in t e eye tracking data.
8. W en you ave finis ed aligning, click t e I’m done button. T e settings are automatically saved and t e Tobii X2 Eye
Tracker is now re-configured. Close t e window.
14 4 Setting Up t e X2 Eye Tracker Tobii X2-30 Eye Tracker User’s manual v.1.0.3 - en-US