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In einer Vielzahl von Untersuchungen zur Emotionserkennung (Decodierung), sowie zur Emotionsdarstellung (Encodierung), kommt der Mimik, gegenüber anderen Ausdrucksorganen eine besondere Bedeutung zu. Ein wesentlicher Grund hierfür ist, daß die hochdifferenzierte und komplexe Muskulatur des Gesichtes die Darstellung einer großen Zahl unterscheidbarer Gesichtsausdrücke zuläßt. Dabei setzt sich die Gesichtsmimik einer Person aus einer Vielzahl von interagierenden Systemen (z.B.
July 30 to August 1, 1992 Edited by Paul Ekman Thomas S. Huang Terrence J.
About Rapid of growth of visual communication systems, from video phones to virtual agents in games and web services, has a brought a new generation of multimedia systems that we refer to as face-centric. Such systems are mainly concerned with multimedia representation of facial activities. Examples can be video messaging on cell phones and online customer support agents.
Muscles of head and neck. Facial Action Coding System ( FACS ) is a system to taxonomize human facial movements by their appearance on the face, based on a system originally developed by a Swedish anatomist named Carl-Herman Hjortsjö. [ 1 ] It was later adopted by Paul Ekman and Wallace V. Friesen, and published in 1978. [ 2 ] Ekman, Friesen, and Joseph C. Hager published a significant update to FACS in 2002. [ 3 ] Movements of individual facial muscles are encoded by FACS from slight different instant changes in facial appearance. [ 4 ] It is a common standard to systematically categorize the physical expression of emotions , and it has proven useful to psychologists and to animators . Due to subjectivity and time consumption issues, FACS has been established as a computed automated system that detects faces in videos, extracts the geometrical features of the faces, and then produces temporal profiles of each facial movement. [ 4 ] [ edit ] Uses
The relatively permanent appearance of the face is formed by the shapes and placement of the bones of the skull, the cartilage, and the soft tissues, including the muscles, fat, and skin, of the face, and the facial features they form. All the facial expressions are built upon this foundation of bone and flesh. The consistent appearance of the face underlies our attribution of identity to a person. These characteristics also contribute to the relatively static expression of the face.