Problem calibrating a custom made display

[Xuetong Sun]

Hello everyone,

I am using EyeX tracker together with EyeX SDK for a school project. The display in use is custom made, and is curved. Therefore, the Engine cannot properly setup the display: the illustrated eyeX tracker is larger than the actual device.

Later when I try calibrating, the engine says cannot detect my eyes even after I popped all the dots. My guess is that the computed calibration is not valid. I tried running the EyeX SDK samples without calibration, and no data is coming in.

My application is very simple. I only need to detect where the gaze is on the screen. As long as I can get the tracking data, I should be able to do my own calibration.

Can you please help me out here?

Thank you.

Xuetong

[Grant [Tobii]]

Hi @xtsun, unfortunately the EyeX SDK does not allow for custom calibrations and we are quite specific in our requirements for screen dimensions (and form).

The best I can suggest is that you calibrate on a normal screen of similar size to your curved one, then replace the monitors out. You will not get great accuracy, but perhaps this is enough for your needs?

[Xuetong Sun]

Thanks for the reply and suggestion. I managed to calibrate on the curve screen after all. It took me a while, but I pulled the eye tracker away from the screen, and pretended it was mounted on an imaginary screen.

Thanks for the help.

Xuetong

[Grant [Tobii]]

Okay, thanks for the update. Best of luck.

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