  Nearly all existing Facial Action Coding System-based datasets that include
facial action unit (AU) intensity information annotate the intensity values
hierarchically using A--E levels. However, facial expressions change
continuously and shift smoothly from one state to another. Therefore, it is
more effective to regress the intensity value of local facial AUs to represent
whole facial expression changes, particularly in the fields of expression
transfer and facial animation. We introduce an extension of FEAFA in
combination with the relabeled DISFA database, which is available at
https://www.iiplab.net/feafa+/ now. Extended FEAFA (FEAFA+) includes 150 video
sequences from FEAFA and DISFA, with a total of 230,184 frames being manually
annotated on floating-point intensity value of 24 redefined AUs using the
Expression Quantitative Tool. We also list crude numerical results for posed
and spontaneous subsets and provide a baseline comparison for the AU intensity
regression task.
