Output format

Table of Contents

CSV file

You can optionally output the estimated information to a .csv file. We intended to have similar output data with Pupil Labs.

CSV file

The content of output .csv file are following:

timestamp - timestamp of the source image frame
index - frame number of input video or camera
face_id - face identification generated by OpenFace with tracking
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.
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
gaze_2d_y - y position in the estimated gaze in normalized coordinates. The coordinate system is the same as for norm_pose_y
face_center_3d_x - x center of face in the camera coordinate system
face_center_3d_y - y center of face in the camera coordinate system
face_center_3d_z - z center of face in the camera coordinate system
gaze_3d_x - x position of the 3D gaze direction vector in the camera coordinate system
gaze_3d_y - y position of the 3D gaze direction vector in the camera coordinate system
gaze_3d_z - z position of the 3D gaze direction vector in the camera coordinate system
left_eye_3d_x - x center of left eye in the camera coordinate system
left_eye_3d_y - y center of left eye in the camera coordinate system
left_eye_3d_z - z center of left eye in the camera coordinate system
right_eye_3d_x - x center of right eye in the camera coordinate system
right_eye_3d_y - y center of right eye in the camera coordinate system
right_eye_3d_z - z center of right eye in the camera coordinate system