Warning: "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /data/web/virtuals/198643/virtual/www/domains/i4tracking.cz/wp-content/themes/Divi/includes/builder/functions.php on line 5840
Technology | I4Tracking®

Technology

Current technology allows contactless binocular distance monitoring of eye movements and pupil size. I4Tracking® works at a high frame rate to capture movements very sensitive. For some applications, however, it may be preferable to develop an earlier solution for a spectacle tracker that records the scene being viewed with the recording of eye views.

Distance system

Tracker parameters

Designed primarily for tracking the stimulus tracked on the computer monitor and pupillometry.

 

Model: I4Tracking®
Measurement method: videookulographic, binocular, dark pupil
Pupillometry: ANO

 

Eye camera
Frame rate: max. 300 fps
Eye camera resolution: (2048 x 1088) px
Eye camera Field of view: 20°
Connection to PC: 1x USB 3.0
Resolving power: 0,1°
Absolute accuracy of scanning: 0,5°
Scanning distance: (50 až 70) cm
Head movement range: (10 x 10 x 10) cm
Eye camera weight: 400 g
Eye camera dimensions (š x v x h): (210 x 70 x 90) cm

 

Scenic camera (optional)
Scenic camera frame rate: 25 fps
Scenic camera resolution: (1920 x 1080) px
Scenic camera field of view: 50°
Connection to PC: 1x USB 2.0
Operational lightning intensity: min. 50 lx
Display size: 22″ až 27″
External inputs: RS 232, USB

We have many years of experience in developing the technology [see the publication]. Which has been accompanied by many blind paths, but it allows us to deliver tailor-made solutions according to customer requirements with precisely defined parameters and records in the form of measured outputs.
The system is primarily designed to monitor the task being solved on a computer monitor under which a measuring camera is located. This monitor performs the initial calibration of the person’s view, and then the measurement output is an image recording with a highlight of the field under consideration. Tasks are usually prepared directly for eye movement testing, so it is possible to perform an automatic evaluation based on the definition of monitoring of the respective zones or the defined course of the eye movements. In addition to the position the observer is observing, we are also able to measure pupil size changes (in this case, the experiment needs to be prepared with regard to possible effects on pupil changes – brightness, color, …).
In addition to this standard design, we are able to deliver a solution for monitoring external objects located in the space above the measuring camera, which is recorded with an additional webcam. The evaluation is then video scenes with highlighting the track you are tracking.

Headset system

Tracker parameters

Designed primarily for tracking objects in open space and pupillometry

 

Model: I4Tracking®
Measurement method: videookulographic, binocular, dark pupil
Pupillometry: YES

 

Eye camera
Frame rate: 100 fps
Resolution: 752 x 480
Resolving power: 0,1°
Connection to PC: USB 2.0

 

Scenic camera
Frame rate: 25fps
Resolution:

1280 x 1024

Field of view: 60°
Connection to PC: USB 2.0
Operational lightning intensity: min. 50 lx
External inputs: RS 232, USB

Function description

Videookulography is a method based on eye pupil scanning using the physical properties of IR reflectance. The eye is illuminated and its movement is detected by a high-frequency camera. To process this record, an algorithm from an experienced computer vision company, Eyedea, is used to detect the eye in the record, and then performs mathematical transformations to interpret the view and pupillometry.