👁 core


user-3bcb3f 02 September, 2025, 05:13:17

World Camera Issues

user-84387e 13 September, 2025, 14:54:26

Is it possible to start pupil capture with just one eye? So its just one window, without eye1 and world? Alternatively: Which class would I need to call in python in order to get the same behavior?

user-f43a29 15 September, 2025, 08:15:59

Hi @user-84387e , this is possible if you disable one of the eye cameras in the General Settings tab and detach the world camera. However, then you will not be able to do a standard calibration, although you can still measure pupil diameter and 3D eye state.

If you'd like a reference, there is an individual who found a way to do calibration for the type of setup you are describing.

user-67b034 15 September, 2025, 16:20:38

Hello Everyone,

My name is Eswar Kurni, and I am a graduate student at Indiana University, Bloomington. Our lab uses a core tracker to record gaze positions in infants. I am reaching out to inquire if there is a way to obtain the inter-eye distance or inter-pupillary distance from the software or through calculations from the videos recorded earlier.

Thank you!.

user-f43a29 16 September, 2025, 07:29:59

Hi @user-67b034 , while we do not a function that outputs this for Pupil Core recordings, you can estimate it yourself from the provided 3D eye centers, which are specified in scene camera coordinates after calibration. Just note that it will be dependent on the quality of the 3D Eye Model fit and that of the calibration.

EDIT: My colleague, @nmt , clarified this for me. Apologies for any confusion, if you saw the earlier version of this post.

user-92a86b 18 September, 2025, 14:18:01

Surface tracking problems

user-6a6d64 19 September, 2025, 13:32:38

I was wondering if there is a way to introduce a video into the pupil player and obtain the data using the export function as with the videos recorded with the pupil capture; is that possible?

nmt 20 September, 2025, 04:05:07

Hi @user-6a6d64! I'm not 100% sure I understand the question. Could you please elaborate? 🙂

user-6a6d64 22 September, 2025, 07:43:28

I was wondering if it would be possible to upload any .mp4 video in the pupil player

user-6a6d64 22 September, 2025, 07:44:08

That means that the video was not recorded with the pupil capture but with any other recording program

user-6a6d64 22 September, 2025, 07:44:41

I tried and it was not possible becuase pupil player needs more data but, I was wondering if there is any way of doing that

nmt 23 September, 2025, 01:41:21

I see. Loading any .mp4 video into Pupil Player and exporting gaze and pupil data is not possible. You would need the native Pupil Capture recording and associated files.

End of September archive