Synthetic Images of Faces using a Generic Head Model
Andrew C. Aitchison · 1992
Realistic images of faces of individual people have been generated by computer by texture mapping a photograph of the individual onto a wireframe model of their head. In previous work each individual had to be measured in order to build this model. We use a generic head model to describe the shape of a human head. This model gives us “world knowledge ” of the shape of a head, to create the new images we distorted it to fit the face in the photograph, creating a new, specific, head model. This specific model can be distorted further to change the expression before it is projected onto a viewing plane. We then map the texture from the photograph of the person, one triangle of the model at a time, onto the viewing plane to create a novel view of the individual. Texture from more than one image may be used, by selecting the most appropriate image for each triangle of the model. The generic → specific transformation is implemented by making each edge of