The Eye Tribe

General • eye blink detection

2016-11-27T20:06:10+02:00

Hi

How eye blinks rate can be detected using eyetribe ?

Thanks

Statistics: Posted by skatasermed100@yahoo.com — 27 Nov 2016, 20:06

General Discussion • Jumpy pupil diameter

2016-11-25T12:16:20+02:00

Recently I discovered that the pupil diameter signal can contain artificial "jumps" which are well above the noise level. I guess that these "jumps" are caused by adaptive processes in the camera (automatic exposure control) and/or the eyetracking algorithm (adaptive threshold for pupil edge detection). The amplitude of the jumps seems to be very similar in one recording but can be different across recordings (different subjects, different conditions). The amplitude of these "jumps", I guess, depends on different individual pupil-to-iris contrasts and different levels of focus (also depending on glasses vs. contact lenses vs. no correction, even at the same eye-to-camera distance).
Obviously, having the exposure and threshold controlled adaptively is a good thing, but I wonder if we could have a "tracker" attribute in the API which allows us to freeze/unfreeze the currently used exposure level and threshold in order to get an artifact-free pupil diameter signal when this signal is of particular interest.

.
Pupil diameter of one eye over time. X:500ms/div, Y:2.5pix/div (where "pix" is the unit of "psize" as returned by the TET API).

Statistics: Posted by skataqx7711 — 25 Nov 2016, 12:16

C# • Re: Running the Sample code

2016-11-25T00:50:50+02:00

Figured it out. I was using the wrong version of the server.

Everything works now.

Statistics: Posted by skatachris.striemer@gmail.com — 25 Nov 2016, 00:50

C# • Re: Running the Sample code

2016-11-24T10:23:10+02:00

Thx for the feedback Chris. Would you mind posting this as an issue on the GitHub repo in question? Maybe with a link to this thread? Then I'll see to it that someone looks at this asap.

Statistics: Posted by skataAnders — 24 Nov 2016, 10:23

C# • Re: Running the Sample code

2016-11-24T02:23:55+02:00

I also tried to run the sample code downloaded straight from github.

The calibration program can run the calibration steps (the moving dot) like the eyetribe UI, but once it's done calibrating it doesn't exit the calibration overlay and if I press esc to exit then a message pops up saying calibration failed. the graphical display which is supposed to show whether the eye tracker always displays the red slash even though the eyetribe UI can detect my eyes. and The mouse control button doesn't do anything even though it works through eyetribe UI. The only thing that seems to work is the "Calibration Quality" displays the same as what eyetribe UI reports.

Scroll pulls up the image which I can navigate with my mouse. But again if it's supposed to respond to my eyes I'm not seeing it.

I've uploaded the complied program here. Does it run on your side?

The only thing I did was download the code from the site and compile it.

Statistics: Posted by skatachris.striemer@gmail.com — 24 Nov 2016, 02:23

C# • Re: Running the Sample code

2016-11-23T18:08:41+02:00

As far as I can tell, the OnGazeUpdate function never runs.

I suggest taking a look at the C# samples to learn what you are doing wrong.

Statistics: Posted by skataAnders — 23 Nov 2016, 18:08

C# • Running the Sample code

2016-11-23T14:30:20+02:00

Hi, I'm trying out the code samples provided on the Dev page and can't seem to get it working.

As far as I can tell, the OnGazeUpdate function never runs. I assumed there was something in IGazeListener that called OnGazeUpdate whenever the tracker had an update available. Should I add it to a delegate manually?

Git repository of project

Statistics: Posted by skatachris.striemer@gmail.com — 23 Nov 2016, 14:30

Accessibility & Health Care • Re: bkb is a program to control keyboard/mouse with eyes

2016-11-23T07:53:18+02:00

Hello! I am very interested to know how this keyboard function works. I would like to map only a few keys at a time. For example:
If the person is fixes the gaze to the right corner of the screen then the right mouse or key button takes action. The same happens if the person gazes to the left then the left arrow key will be clicked. Could this be done with the program?

Statistics: Posted by skatajuanvic5185@hotmail.com — 23 Nov 2016, 07:53

Java • Correcting Calibration Drift

2016-11-22T15:48:24+02:00

Hi,

My project which uses EyeTribe, the users are supposed to look at an image for a long amount of time. There seems to be a calibration drift after a minute or two of looking. I was wondering if there are ways to fix this?
Any hints and tips would be appreciated.

Thanks

Statistics: Posted by skatapbawa1509@gmail.com — 22 Nov 2016, 15:48

Accessibility & Health Care • Clicker 7

2016-11-20T18:22:01+02:00

Hi everyone,
Does anyone know if it npossible to use "Clicker 7" ,with the EyeTribe?
Thanks Andy.

Statistics: Posted by skataandybonugli — 20 Nov 2016, 18:22

Issues and troubleshooting - OSX • macOS Firmware Update

2016-11-16T23:24:18+02:00

According to EyeTribeUI, "A firmware update is required". Please send me the firmware as soon as possible.

Model: ET1000
Batch:2015-04
OS: macOS Sierra 10.12.1

Thanks in advance!

Statistics: Posted by skatacthompson@tamhsc.edu — 16 Nov 2016, 23:24

Issues and troubleshooting - Windows • Re: The tracker device has been connected but is not working

2016-11-09T16:05:11+02:00

I have tested it again on the previously used Dell, but that time it has not on that laptop either.
Then I have received a firmware error message but since then I only receive the message that the device is unavailable.

According to USBdevView it is a device.

USB Devices List
Created by using USBDeview

Device NameDescriptionDevice TypeConnectedSafe To UnplugDisabledUSB HubDrive LetterSerial NumberCreated DateLast Plug/Unplug DateVendorIDProductIDFirmware RevisionUSB ClassUSB SubClassUSB ProtocolHub / PortComputer NameVendor NameProduct NameParentId PrefixService NameService DescriptionDriver FilenameDevice ClassDevice MfgPowerUSB VersionDriver DescriptionDriver VersionDriver InfSectionDriver InfPathInstance IDCapabilities

TheEyeTribeUSB Composite DeviceUnknownYesYesNoNo 00000000012016.11.09. 12:52:022016.09.09. 12:22:3029ab00fb0.00000000 6&9289170&0usbccgp@usb.inf,%GenericParent.SvcDesc%;Microsoft USB általános szülő-illesztőprogramusbccgp.sys (Szabványos USB állomásvezérlő)500 mA2.10USB Composite Device6.3.9600.17238Composite.Dev.NTusb.infUSB\VID_29AB&PID_00FB\0000000001Removable, UniqueID, SurpriseRemovalOK

Eyetribe log
2016-11-09 12:58:38.642|4256750894|I|Creating new log file
2016-11-09 12:58:38.642|4256750894|I|Initializing environment
2016-11-09 12:58:38.643|4256750894|I|Detecting primary screen
2016-11-09 12:58:38.644|4256750894|I|Register control handler
2016-11-09 12:58:38.644|4256750894|I|Default video system: Direct Show
2016-11-09 12:58:38.644|4256750894|I|Initializing config system
2016-11-09 12:58:38.645|4256750894|I|TCP port: 6555
2016-11-09 12:58:38.645|4256750894|I|Connections: local only
2016-11-09 12:58:38.645|4256750894|I|Framerate: 30
2016-11-09 12:58:38.656|4256750894|I|Initializing the Eye Tribe Server (v0.9.77)
2016-11-09 12:58:38.658|4256750894|I|Initializing network
2016-11-09 12:58:38.661|4256750894|I|Initializing dispatcher
2016-11-09 12:58:38.661|4256750894|I|Initializing Network
2016-11-09 12:58:38.661|4256750894|I|Setting network connection port
2016-11-09 12:58:38.661|4256750894|I|Setting max network connections
2016-11-09 12:58:38.661|4256750894|I|Starting Network
2016-11-09 12:58:38.661|4256750894|I|Checking for running instances
2016-11-09 12:58:38.663|4256750894|I|Creating Tracker Manager
2016-11-09 12:58:38.663|4256750894|I|Creating Camera Manager
2016-11-09 12:58:38.663|4256750894|I|Initializing COM library
2016-11-09 12:58:38.663|4256750894|I|Initialized COM library
2016-11-09 12:58:38.663|4256750894|I|Starting Device Monitor
2016-11-09 12:58:38.674|2309752702|I|Video capturing device Found: TheEyeTribe
2016-11-09 12:58:38.682|2309752702|I|Registering the device
2016-11-09 12:58:38.682|2309752702|I|Device registered
2016-11-09 12:58:38.682|2309752702|I|Video capturing device Found: Integrated Webcam
2016-11-09 12:58:38.683|2309752702|I|Registering the device
2016-11-09 12:58:38.683|2309752702|I|Device registered
2016-11-09 12:58:38.683|2309752702|I|Video capturing device Found: iSpy Virtual Devices
2016-11-09 12:58:38.683|2309752702|I|Ignoring the device
2016-11-09 12:58:38.683|2309752702|I|Validating camera device
2016-11-09 12:58:38.683|2309752702|I|Initializing tracker device
2016-11-09 12:58:38.683|2309752702|I|Starting Direct Show device
2016-11-09 12:58:38.695|2309752702|I|Building Direct Show render graph
2016-11-09 12:58:39.723|2309752702|E|Could not initialize The Eye Tribe Tracker
2016-11-09 12:58:39.728|2309752702|E|The tracker device has been connected but is not working
2016-11-09 12:58:39.733|4256750894|I|Creating Detection Manager
2016-11-09 12:58:39.751|4256750894|I|Creating Calibration Manager
2016-11-09 12:58:39.751|4256750894|I|Creating AutoExposureEstimator
2016-11-09 12:58:39.753|4256750894|I|Default calibration profile loaded!
2016-11-09 12:58:39.757|4256750894|I|Validating number of camera devices
2016-11-09 12:58:39.757|4256750894|I|Validating config chosen device
2016-11-09 12:58:47.943|4256750894|I|Shutting down Tracker Manager
2016-11-09 12:58:47.943|4256750894|I|Shutting down Camera Manager
2016-11-09 12:58:47.943|4256750894|I|Stopping Device Monitor
2016-11-09 12:58:48.732|4256750894|I|Uninitializing COM library
2016-11-09 12:58:48.732|4256750894|I|Uninitialized COM library
2016-11-09 12:58:48.732|4256750894|I|Shutting down Detection Manager
2016-11-09 12:58:48.732|4256750894|I|Shutting down Calibration Manager
2016-11-09 12:58:48.732|4256750894|I|Deinitializing dispatcher
2016-11-09 12:58:48.732|4256750894|I|Deinitializing Network Manager
2016-11-09 12:58:48.732|4256750894|I|Network Manager Deinitialized

I have read different topics but did not find the solution. I have seen that in some cases the questioners received answers in PM.

Please help me if you can.

Thank you for your help in advance.

Statistics: Posted by skatahektorka@gmail.com — 09 Nov 2016, 16:05

Java • Re: Drawing on an image using the gaze Coordinates

2016-11-07T10:13:50+02:00

I was trying to draw the fixations on the image with a "X" to see the accuracy and the jitter but i was wondering how can I convert the gaze coordinates into the coordinates that java uses to draw? Or am I mistaken and they both are essentially the same?
I am trying something like
g.drawString("x", 409, 74);

The EyeTribe API gives you screen coordinates in pixels. This is explained in detail in the API. Sounds like you are having trouble using the Java graphics system. You have not shared what Java libraries you are using, so I can't give you any package specific advice. Note that Java offers several presentation layers.

I would advice you to write a test program that draws lines or points in areas defined by hardcoded coordinates in your code. Once that works, then try to incorporate gaze coordinates. You could also start by writing a program that draws using the mouse and then add gaze coordinates afterwards.

Statistics: Posted by skataAnders — 07 Nov 2016, 10:13

General Discussion • Re: Eye Tribe Pro Release Date

2016-11-06T14:38:41+02:00

I am planning to do a project using the device in december. Did any of you guys get your device?

Statistics: Posted by skataajith.murugaian@gmail.com — 06 Nov 2016, 14:38

Analysis (Academics, Market research & Usability) • Re: How to create gaze plot using eyetribe eye tracker?

2016-11-06T14:30:42+02:00

Could you explain how do you go about converting the rawCoordinates that gazeData provides into the coordinates that java uses to draw?

Statistics: Posted by skatapbawa1509@gmail.com — 06 Nov 2016, 14:30