Emotion synthesis in virtual environments

Man-Machine Interaction (MMI) systems that utilize multimodal information about users' current emotional state are presently at the forefront of interest of the computer vision and artificial intelligence communities. Interfaces With human faces expressing emotions may help users feel at [ionic when interacting with a computer because they are accepted as the most expressive means for communicating and recognizing emotions. Thus, emotion synthesis can enhance the atmosphere of a virtual environment and communicate messages far more vividly than any textual or speech information. In this paper. we present an abstract means of description of facial expressions, by utilizing Concepts included in the MPEG-4 standard to synthesize expressions using a reduced representation, suitable for networked and lightweight applications.