AU Method for extracting Emotional Expression information based on Action Unit

摘要

It describes a AU-based information extraction method and system sensitivity. Emotion information extracted by: the steps of: acquiring a facial image of emotion expression according to the basic expression (expressionless) and a plurality of emotional states to be compared thereto from the subject; The step of mapping a plurality of vertices each facial area in the face image of the basic facial expression or the emotional expression, by masking (matching) standard model that defines the facial region by the reference peak is at the face image of the subject; Extracting a vertex coordinate change between the value of the same face region from the face image of the basic facial expression and emotional expressions; A step of grouping each AU that are defined for said vertex in the human face, extracting AU facial movement information including a change value of the middle point (重點, Centroid) of the star AU group vertex; Comprising: a plurality of data beyiseuhwa by the emotional state of the AU facial movement information; A; and the newly input analyzing facial image of the subject for a particular emotional state which extracts the specific AU information according to a particular emotional state, and the step of comparing a specific AU information in the database determines a particular emotional state of the subject It includes.;