You will find that learning FACS will give you sensitivity to subtle facial movements that few others have. The system automatically tracks faces in a video, extracts geometric and texture features, and produces temporal profiles of each facial muscle movement. Head shake up and down. On each face, yellow dots indicate the locations of landmarks, and red lines indicate different facial components. Depressor anguli oris Triangularis. Impact of depression on response to comedy:
With the prior knowledge of qualifying and disqualifying AUs for each emotion, we can use the temporal profiles to further aid the diagnosis of affective impairment.
The Facial Action Coding System Explained
Starting with the averaged landmark locations as a template, we align landmarks from all training faces to the template, and update the template by averaging the aligned landmarks. Relation to emotion processing and neurocognitive measures. It is a big commitment for big understanding. In this section we describe the acquisition procedure for videos of evoked emotions for pilot data of four healthy controls and four schizophrenia patients representative of variation in race and gender. Dynamics of facial expression extracted automatically from video. The subject displays a convincing sad expression which involves typical AUs such as AU15 and ASM performs better with more landmarks in the model Stegmann et al.