Abstract

Research in the field of computer graphics and vision strives to precisely synthesize any possible human face in a way that it is perceived as a real face and to parametrically describe or analyze any existing human face. This article provides an overview of the theoretical and technical steps taken to get a model of human faces that satisfied two demands for face stimuli for experimental research: full control over the information in faces enabling precise manipulations on the one hand, and high ecological validity of the stimuli, i.e. the ability to generate face stimuli that look very natural, on the other. It presents a new technology that fulfills both conditions. An important advance in the development of computer-generated face stimuli is initiated by the proposal of a theoretical face-space framework for the encoding of faces.