Active Appearance Models

Facial Features Matching using a Virtual Structuring Element

Face analysis in a real-world environment is a complex task as it should deal with challenging problems such as pose variations, illumination changes and complex backgrounds. The use of active appearance models for facial features detection is often successful in restricted environments, but the performance decreases when applied in unconstrained environments. Therefore, in this paper, we intro...

Statistical Models of Appearance for Computer Vision 1

1 This is an ongoing draft of a report describing our work on Active Shape Models and Active Appearance Models. Hopefully it will be expanded to become more comprehensive, when I get the time. My apologies for the missing and incomplete sections and the inconsistancies in notation. TFC

Statistical Models of Shape and Appearance

Many objects of interest in images can be represented as deformed versions of some average structure for instance faces, bones and many organs in medical images. This tutorial will describe methods of constructing statistical models of the variation in shape and appearance of such objects from annotated sets of examples. Two widely used matching methods, Active Shape Models and Active Appearanc...

Adapted Active Appearance Models

Active Appearance Models (AAMs) are able to align efficiently known faces under duress, when face pose and illumination are controlled. We propose Adapted Active Appearance Models to align unknown faces in unknown poses and illuminations. Our proposal is based on the one hand on a specific transformation of the active model texture in an oriented map, which changes the AAM normalization process...

Good Features to Track with Appearance Models

Parameterized Appearance Models (PAMs) (e.g. Eigentracking [2], active shape models [6], active appearance models [5, 12], morphable models [3, 11]) are commonly used to model the appearance and shape variation of objects in images. While PAMs have numerous advantages relative to alternative approaches, they have at least two drawbacks. First, they are especially prone to local minima in fittin...

View-Based Active Appearance Models