Smart Eye eye tracking system

EGI has partnered with Smart Eye GmbH of Sweden to offer the first integrated dense array EEG and remote head- and eye-tracking system for linking attention, time-on-task, pupillometry, and eye blinks to the ongoing EEG.





Integration Advantages

Smart Eye Tracking at EGI

The versatile Smart Eye Pro technology can track head and eye movements up to 270 degrees, allowing the largest visual field on the market. Machine vision research and advances in computer hardware technologies have made it possible to measure head pose, eye gaze, pupil dilation, and eyelid state with high accuracy, using video cameras and digital image processing. Smart Eye utilizes these advancements to provide the most robust, flexible, and accurate systems possible for demanding applications.

Smart Eye CameraThe key component of Smart Eye systems is the computerized analysis of video images. The systems use one or more cameras together with a flexible number of IR-flash illuminators. These IR illuminators are controlled by customized hardware, so that each system uses primarily its own illumination. This makes it highly robust to all natural illumination conditions present in diverse environments such as automobiles and aircraft, as well as the variable light caused by an ERP stimulus presentation monitor. EGI’s Single Clock solution provides the precise timing you need to generate saccade, fixation, an pupillometry-based ERPs. Already installed in aircraft, automobiles, and a Caterpillar tractor, this robust system is your only reliable solution for developmental studies, clinical populations, and research in operational environments.

Smart Eye Pro

Smart Eye Pro has been developed for users who require non-intrusive, high-accuracy 3D measurements of head pose and eye gaze in real time, and under realistic test conditions. Features of Smart Eye Pro 5.0

  • Real-time measurement (60 Hz sample rate, system lag typically <50 ms).
  • Natural head motion (translation and/or rotation) using up to six cameras.
  • Immunity to external light situation using active IR illumination.
  • Flexible camera positioning provides adaptability to various measurement scenarios.
  • Fast camera calibration through a simple chessboard procedure.
  • Semiautomatic profile generation.
  • Occlusions handled gracefully utilizing redundancy in multiple-view cameras.
  • Instantaneous tracking recovery.
  • 6 DOF head tracking. Accuracy: Rotation 0.5 degrees, translation <1 mm.
  • 2 DOF gaze tracking. Accuracy of gaze-vector: down to 0.5 degree under ideal conditions.
  • Compatible with contact lenses and glasses/sunglasses.
  • Eyelid opening in 60 discrete steps, reported in mm.
  • Pupil radius in mm.
  • Consensus, left eye, right eye and quality values for all results.
  • Gaze direction can be calculated by iris or pupil position.
  • Corneal reflection or head model based gaze direction available.
  • User customizable coordinate system.
  • Tools for definition of gaze zones in a 2D or a 3D world.
  • Live visual feedback including gaze and head motion in a 3D world model.
  • Results in real time via network (UDP/TCP) or serial ports, also in customizable text logs.
  • CAN-bus interface for output data.
  • Customizable network client, including source code.
  • Scene camera for overlay of gaze data on user view.
  • Toolkit for synchronizing measurement data with external time sources.
  • Remote control functionality for automation of experiments.
  • Integration with 3rd party products, such as E-Prime, Gaze Tracker & Net Station.
  • Statistical tools for post-processing of measurement data, on demand.
  • Development toolkit for customers who want to tailor their own applications.
  • Offline analysis of video recordings from Smart Eye cameras.
  • Scripts for importing logs into MatLab or SciLab.