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Xucong Zhang 2019-01-28 13:41:52 +01:00
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You can optionally output the estimated information to a .csv file. We intended to have similar output data with [Pupil Labs](https://docs.pupil-labs.com/).
## CSV file
The content of output .csv file are following:<br/>
* `timestamp` - timestamp of the source image frame<br/>
* `index` - frame number of input video or camera<br/>
* `face_id` - face identification generated by OpenFace with tracking<br/>
* `confidence` - face and facial landmark detection certainty ranges from `-1` to `1`, provided by OpenFace. A value of `-1` indicates no confidence. `1` indicates perfect confidence.<br/>
* `gaze_2d_x` - x position in the estimated gaze in normalized coordinates. The coordinate is based on the screen such that the origin `(0,0)` is the **top left** and `(1,1)` is the **bottom right**<br/>
* `gaze_2d_y` - y position in the estimated gaze in normalized coordinates. The coordinate system is the same as for `norm_pose_y`<br/>
* `face_center_3d_x` - x center of face in the camera coordinate system<br/>
* `face_center_3d_y` - y center of face in the camera coordinate system<br/>
* `face_center_3d_z` - z center of face in the camera coordinate system<br/>
* `gaze_3d_x` - x position of the 3D gaze direction vector in the camera coordinate system<br/>
* `gaze_3d_y` - y position of the 3D gaze direction vector in the camera coordinate system<br/>
* `gaze_3d_z` - z position of the 3D gaze direction vector in the camera coordinate system<br/>
* `left_eye_3d_x` - x center of left eye in the camera coordinate system<br/>
* `left_eye_3d_y` - y center of left eye in the camera coordinate system<br/>
* `left_eye_3d_z` - z center of left eye in the camera coordinate system<br/>
* `right_eye_3d_x` - x center of right eye in the camera coordinate system<br/>
* `right_eye_3d_y` - y center of right eye in the camera coordinate system<br/>
* `right_eye_3d_z` - z center of right eye in the camera coordinate system<br/>