A Linear Initialization for Automatic Fitting of 3D Morphable Models

Morphable Models are dense 3D models built using PCA of aligned laser scanned data which is then fitted to images. During fitting, variations in illumination, pose and identity can be addressed by the rendering process; Morphable Models are therefore extremely useful for object modeling. One problem however is that Morphable Model fitting is slow since gradient descent methods are generally used. This paper outlines a combination of both a constrained Active Appearance Model and closed form 2D point based fitting method. We demonstrate preliminary results of the method and a simplified exterior orientation solution for our face model case.