What man primarily sees in his continual social interactions are the faces of other persons. Starting from this vision is how he tries to infer what is happening in the bodies and minds of those individuals and then conclude if the person in question is happy, angry or in any other state of mind and thus, based on this information, modify his behavior. Using our vision system is how we analyze changes in the principal facial expressions to indirectly determine the emotion associated with these changes. Identification and recognition of emotions are therefore important abilities that facilitate the social and emotional development of people as well as being a fundamental factor of non-verbal communication. It is worth mentioning that the emotions can be expressed by diverse means, namely, bodily behaviors, vocalizations and facial expressions, being the last one mentioned, the most important.

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Contreras Gómez, R. 2009. Human Facial Expressions a Global and Systematic Model for Emotion Recognition. Disertación Doctorado. Ciencias de la Computación. Departamento de Computación, Electrónica y Mecatrónica, Escuela de Ingeniería, Universidad de las Américas Puebla. Diciembre. Derechos Reservados © 2009.