. Author manuscript; available in PMC: 2012 Mar 7.

Published in final edited form as: Int Conf Affect Comput Intell Interact Workshops. 2009 Dec 8;2009:1–8. doi: 10.1109/ACII.2009.5349321

Table 2.

Indirect pain detection results by individual AU: Area underneath the ROC curve whereby separate AU detectors were used to detect pain for shape, appearance and combination features. These results are compared to the direct approach given in the last row.

AU	PTS	APP	PTS+APP
4	57.35	60.32	57.93
6	69.91	73.09	74.64
7	64.11	61.47	65.49
9	65.23	58.86	64.48
10	55.05	56.19	56.30
12	68.92	69.31	70.91
20	50.50	50.25	51.34
25	59.13	55.64	57.88
26	55.27	50.16	55.05
43	73.56	64.74	73.28
Direct	74.25	73.20	75.08