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Improve fomulation
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Marc Tonsen committed Oct 30, 2023
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Expand Up @@ -32,7 +32,7 @@ The deployed fixation detection algorithm was specifically designed for head-mou
## 3D Eye States <Badge>Pupil Cloud</Badge>
After uploading a recording to Pupil Cloud, 3D eye states are computed automatically at 200 Hz. The 3D eye states are a time series of each eye's position and orientation in 3D space, given by the location of the eyeball center and the optical axis of each eye.

The coordinate system is defined as follows:
The coordinate system is depicted below. The origin corresponds to the scene camera of the Neon Module.

![Coordinate systems of 3D eye states](./3d_eye_states.png)

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