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PRODOTTI HARDWARE

PRODOTTI SOFTWARE

TOBII PRO FUSION

Tobii Pro Fusion big picture

Screen based eye tracker disponibile con una frequenza di rilevazione a 120 o 250 Hz. Ideale sia per gli studi sulle fissazioni che sulle saccadi.
Compatto e facilmente trasportabile, consente di raccogliere i dati sia in lab che in ambienti meno controllati.

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)
Accuracy	0.3° at 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.

1 Dark pupil tracking is supported in all sample frequencies. Bright pupil tracking is supported at 60 and 120 Hz.

2 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.

3 Applying Savitzky-Golay filtering (settings in Tobii Pro Data quality test report).

4 For the complete list of available data and the supplementary data stream, download the Pro
SDK documentation from Tobii Pro’s website.

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 65 cm distance)	Width × height: 40 cm × 25 cm (15.7” × 9.84”) (At least one eye tracked)
Freedom of head movement⁵ (at 80 cm distance)	Width x height: 45 cm x 30 cm (17.7’’ x 11.8’’) (At least one eye tracked)
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)

5 Describes 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 Eye Tracker Manager Tobii Pro SDK Any application built on the Tobii Pro SDK
Operating system	Windows, Mac, Linux6

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	168 g (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

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Tobii Pro Fusion

SR Labs srl