Facial gesture analysis in an interactive environment
Wei-Kai Liao · University of Southern California Digital Library · 2015
This research focuses on tracking, modeling, quantifying and analyzing facial motions for gesture understanding. Facial gesture analysis is an important problem in computer vision since facial gestures carry signals besides words and are critical for nonverbal communication. The difficulty of automatic facial gesture recognition lies in the complexity of face motions. These motions can be categorized into two classes: global, rigid head motion, and local, nonrigid facial deformations. In reality, observed facial motions are a mixture of these two components.