Tobii Pro Fusion
Screen-based eye tracker, capturing gaze data at speeds up to 250 Hz. Our next generation of compact high-performance eye trackers, this powerful research system supports from fixation to saccade based research outside of the lab.
Features
Reach further with your research
Tobii Pro Fusion is the next generation of compact high-performance eye trackers from Tobii Pro.
Take your research to subjects that would otherwise be hard to bring to the lab. Collect data in schools, hospitals, libraries, and other locations where participants are easier to access.
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.
What’s new in a compact format:
- More detailed data with sampling frequencies of up to 250 Hz.
- More tolerance for head movement with two new eye tracking cameras and improved eye tracking algorithms.
- No external processing unit required which ensures timing consistency as the data is processed autonomously in three internal processors.
- Support for new PC ports: USB Type-C.
- Pupil size data reported at the selected sampling rate.
- Eye images provided.
Collect your data where your subjects are available
Recruiting test subjects is an obstacle all researchers face. Certain test populations are more difficult to recruit and test in the lab and some individuals might even feel uncomfortable in this environment.
The size and shape of Tobii Pro Fusion allow you to put together a compact mobile lab which enables you to take your data collection to where your subjects are available and feel more comfortable, without compromising on data quality and granularity.
The patented Tobii eye tracking algorithms and robust subject calibration ensures that the eye tacker produces reliable data across different indoor environments.
Support for different data collection scenarios
If you have a busy lab with students running different projects, it’s likely that each project will have different demands on the eye tracking setup. Tobii Pro Fusion provides a flexible solution that supports different research scenarios and study designs.
Pro Fusion has a slim design that integrates well with different stand-alone and laptop screens up to 24 inches in size. The eye tracker can also be mounted on tripods 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).
The different sampling frequencies and associated bright and dark pupil tracking modes allow you to adapt the performance to your study design and test population.*
The Tobii Pro Eye Tracker Manager – a configuration and setting utility – guides you through the setup procedure and manages different setup configurations. This application is available free of charge.
*The illumination mode is selected automatically by the system during calibration.
High standards of data quality
The Tobii Pro Fusion eye tracker is designed to provide high data quality and tracking robustness:
- Two custom Tobii-designed cameras optimized for eye tracking. Tobii’s patented 3D eye model delivers superior gaze data, including wide gaze angles and all corners of the screen.
- Bright and dark pupil illuminators for NIR light, offer superior tracking robustness regardless of eye shapes, ethnicity or age.
- Fully embedded processing and illumination control enables the system to work autonomously, minimizing load on system CPU.
- The system maintains high accuracy, precision, and tracking robustness during subjects’ natural head movements and in different lighting environments indoors.
Tobii Pro Lab
Tobii Pro Fusion works with Tobii Pro Lab providing a visual user interface and dedicated software features that guide and support the researcher through the different phases of data collection and processing during an eye tracking experiment – from stimulus setup and test recording to preparing the data for further analysis.
You can create different experiments, collect eye tracking data, observe and analyze individual recordings, and aggregate data for quantitative analysis and visualization.
Pro Lab is built on a platform that ensures precise and consistent timing accuracy. You can rely on full transparency – with access to both the gaze data and processed eye movement data (fixation filters), as well as insights into metric calculations.
Pro Lab can also be used to sync eye tracking data with other biometric data streams such as EEG, GSR, and EKG.
The Tobii Pro SDK provides a comprehensive toolkit for researchers and partners who wish to develop analytical applications or scripts to use with the Pro Fusion and other screen-based eye trackers from Tobii Pro.
This SDK provides access to the full set of advanced gaze data streams that are relevant to your research, while advanced timing support compensates for time differences in real-time, between the eye tracker and the computer running the SDK application, providing high synchronization accuracy.
The Tobii Pro SDK offers multi-platform support (including the latest versions of Windows, Linux, and Mac) and API bindings for several programming languages (.NET, Python, and Matlab).
Components
Eye tracking specifications
The eye tracker measures 374 mm (14.7”) in length and weighs 168g (5.9 oz.). It attaches to screens up to 24″ (16:9) with supplied adhesive mounting brackets for monitors and laptops. Mounting solutions for larger projections or real-world objects are offered as accessories.
Specifications
Eye tracking specifications
Eye tracking technique
Video-based pupil- and corneal reflection eye tracking with dark and bright pupil illumination modes.1
Two cameras capture stereo images of both eyes for robust accurate measurement of eye gaze and eye position in 3D space, as well as pupil diameter.
Sampling frequency
60, 120 & 250 Hz or 60 & 120 Hz, depending on the hardware version
Precision2
0.04° RMS at optimal conditions3
0.2° RMS in optimal conditions (raw signal)
Accuracy2
0.3° in optimal conditions
Binocular eye tracking
Yes
Total system latency
3 frames (<12 ms at 250 Hz)
Blink recovery time
1 frame (immediate)
Gaze recovery time
250 ms
Data sample output4
Timestamp
Gaze origin
Gaze point
Pupil diameter
Eye image data stream
Eye image data stream frequency is approximately 4 Hz (one image per eye). Zoomed-in eye images available in tracking mode. Full-frame camera images are available in gaze recovery mode.
TTL input stream
Not Available
Tracker and client time synchronization
Integrated between the eye tracker time domain and the client computer time domain.
1Dark pupil tracking is supported in all sample frequencies. Bright pupil tracking is supported at 60 and 120 Hz.
2Tobii Pro uses an extensive test method to measure and report performance and quality of data. Please download the Data quality test report for more detailed information.
3Applying Savitzky-Golay filtering (settings in Tobii Pro Data quality test report)
4For the complete list of available data and the supplementary data stream,
Set up
Head movement tolerance
Excellent -Dual-camera system, with more images than a one camera system, gives a more accurate data calculation and the best level of precision and robustness for head movement.
Freedom of head movement5 (at 65cm distance)
Width × height: 40 cm × 25 cm (15.7″ × 9.84″)
Freedom of head movement5 (at 80cm distance)
Width x height: 45 cm x 30 cm (17.7″ x 11.8″)
Operating distance
(mounted on screen)
50–80 cm (19.69”–31.49”) from the eye tracker
Tracker setup options
Tracker mounted at tripod, allows for even larger screens and physical objects to be tracked.
Optimal screen size
24” (16:9 aspect ratio)
5Describes the region in space where the participant can move his/her head and still have at least one eye within the eye tracker’s field of view (trackbox) at the specific distance.
Software and framework compatibility
Software and framework compatibility
Tobii Pro Lab
Tobii Pro Eye Tracker Manager
Tobii Pro SDK
Any application built on the Tobii Pro SDK
Operating system
Windows, Mac, Linux6
6Linux to come 2021
Hardware versions
Hardware versions
120 Hz
250 Hz
Eye tracker unit
Dimensions
(L x H x W) in cm/inches 37.4 × 1,8 x 1.37 (14.72″ × 0.70″ × 0.53″)
Weight
168g (5.9 oz.)
Connectors
USB Type-C,
USB Type-C to USB Type-A adapter
AC power
Data Processing
3 Tobii EyeChip™ ASIC with fully embedded data processing
Eye tracking cameras
2
Illuminators
Dark pupil Illumination Modules, Bright pupil Illumination Modules
Power consumption
Typical power consumption: 4.3 W
Max. rated power consumption: 9 W
Power options
Directly via USB Type-C connector, or
With provided AC power adapter, when using a computer with USB 2.0 Type-A port
Power options
Directly via USB Type-C connector, or
With provided AC power adapter, when using a computer with USB 2.0 Type-A port
Comparison tables
Pro Nano
Pro Fusion
Pro Spectrum
Precision1
0.10°
RMS at optimal conditions3
0.04°
RMS at optimal conditions2
0.2°
RMS at optimal conditions (raw signal)
0.01°
RMS at optimal conditions
0.06°
RMS at optimal conditions (raw signal)
Accuracy
0.3°
0.3°
0.3°
Head movement tolerance
Good
(Single Camera)
Excellent
(Dual camera)
Excellent
(Dual camera)
Tracker setup options
Tracker mounted at tripod, allows for even larger screens and physical objects to be tracked.
Tracker mounted at tripod, allows for even larger screens and physical objects to be tracked.
1 Tobii Pro uses an extensive test method to measure and report performance and quality of data. Please download the Data quality test report for more detailed information.
2Applying Savitzky-Golay filtering (settings in Tobii Pro Data quality test report)
3Using built in filtering.
Pro Nano
Pro Fusion
Pro Spectrum
Optimal screen size
Up to 24” 1
24”
24”
Freedom of head movement
width x height @ 65cm distance (either eye)
35 x 30cm
40 × 25cm
34 x 26cm
Freedom of head movement
width x height @ back of headbox (either eye)
45 x 45cm2
@80
45 x 30cm
@80
42 x 26cm
@75
Freedom of head movement
width x height @ back of headbox (either eye)
45 x 45cm2
@80
45 x 30cm
@80
42 x 26cm
@75
Head movement tolerance
Good
Excellent
Excellent
1For larger screens, the limiting parameter is the quality of the gaze accuracy at the upper corners of the screen when the user sits close to the screen
2Cone/circular shaped
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Fields of Use
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