Table 2 Summary of keypoints (Fig. 2b–d).
Keypoints in videos of the upper body | ||
|---|---|---|
1 | Spout, tip | The tip of the lick spout |
2 | Forepaw, right | The center of the right forepaw |
3 | Forepaw, left | The center of the left forepaw |
4 | Lever, tip | The tip of the lever |
5 | Pawrest, tip | The tip of the pawrest |
Keypoints in videos of the right side of the face | ||
1 | Spout, tip | The tip of the lick spout |
2 | Tongue, tip | The tip of the tongue in the midline |
3 | Jaw, lower | The tip of the lower jaw in the midline |
4 | Nose, tip | The nose tip in the midline |
5 | Nose, right | The most lateral point of the right nostril wall |
6 | Forepaw, right | The center of the right forepaw |
7 | Forepaw, left | The center of the left forepaw |
8 | Nose, bottom | The most ventral point of the nose in the midline |
9 | Nose, root | The nose root in the midline |
10 | Eye, medial | The inner corner of the right eye |
11 | Eye, lateral | The outer corner of the right eye |
12 | Ear, root | The most anterodorsal tip of the right ear root |
13 | Ear, tip | The most lateral point of the right ear helix |
14 | Ear, lateral | The ventrolateral midpoint of the right ear helix |
Keypoints in videos of the right eye | ||
1 | Pupil borders | Thirty circumferential points on the pupil |
2 | Eye, inner corner | The medial corner of the right eye |
3 | Eye, outer corner | The lateral corner of the right eye |
4 | Pupil, center* | The center of the right pupil |
