Active Appearance Models for Automatic Fitting of 3D Morphable Models

This paper presents a fast fitting method for 3D Morphable Models (3DMMs). In most cases fitting a Morphable Model to an image is done using slow non-linear optimization processes. We avoid this by introducing a relationship to Active Appearance Models (AAMs) that can be used to linearize the non-linear optimization problem of 3DMM fitting. Using the combination of a constrained AAM and closed form 2D-3D fitting method for 3DMMs we show that a perceptually close 3D shape can be extracted from the AAM fittings. We show preliminary results of the method and a simplified exterior orientation solution. Finally we conclude with a tracking algorithm that is based on the combination of the AAM and 3DMM, presenting the tracking and reconstruction errors.