No abstract

No abstract

No abstract

No abstract

Aufomatic facial expression recognition is one of the most d@culf and important problems in the scientific areas of cybernetics, pattern recognition and computer vision and their technological applications. New, friendlier human-computer interaction modes and multimedia interactive services require processing of images obtained with use of multiple cameras to detect the presence and location of computer users' faces and determine their affective state. In order to be fully automated, the system proposed in this paper, consists of two modules: firstly, we use a face detection algorithm to determine whether or not there are any faces in the image and, ifso, return the location and extent of each face, ond secondly, we use a facial expression classification module to determine the facio1 expression o f a person.