Landmark-Based Facial Feature Construction and Action Unit Intensity Prediction

Table 1

List of AUs.

AU number	FACS name
1	Inner brow raiser
2	Outer brow raiser
4	Brow lowerer
5	Upper lid raiser
6	Cheek raiser
7	Lid tightener
8	Lips toward each other
9	Nose wrinkler
10	Upper lip raiser
11	Nasolabial furrow deepener
12	Lip corner puller
13	Cheek puffer
14	Dimpler
15	Lip corner depressor
16	Lower lip depressor
17	Chin raiser
18	Lip puckerer
20	Lip stretcher
22	Lip funneler
23	Lip tightener
24	Lip pressor
25	Lips part depressor
26	Jaw drop
27	Mouth stretch
28	Lip suck
38	Nostril dilator
39	Nostril compressor
41	Lid droop
42	Slit
43	Eyes closed
44	Squint
45	Blink
46	Wink

AU, action unit; FACS, facial action coding system.