TEMPERATURE ANALYSIS OF FACE REGIONS BASED ON DEGREE OF EMOTION OF JOY

Various studies pertaining to facial-expression and emotion detection have been conducted from the perspective of emotion communication. We considered it is pos-sible to discriminate between intentionally expressed and naturally evoked facial-express-ions, as well as the magnitude of change in facial-expressions, by using temperature changes in the face. The objective was to classify the emotion of joy into intentionally expressed and naturally evoked facial-expressions, and analyze the relationship between the magnitude of change in facial-expression in the section where the facial-expression is expressed and the temperature change in the regions of interest on the face. The temper-ature change was larger for the degree of emotion than for the steady state. Additional-ly, the temperature change was larger for natural-facial-expression than for intentional-facial-expressions, and also for facial-expression than for the expressionless section. The magnitude of the temperature change and the average amount of temperature change could be used to discriminate between intentional-and natural-facial-expressions, or the degree of emotion.