Fully Automatic Upper Facial Action Recognition

This paper provides a new fully automatic framework to analyze facial action units, the fundamental building blocks of facial expression enumerated in Paul Ekman’s Facial Action Coding System (FACS). The action units examined in this paper include upper facial muscle movements such as inner eyebrow raise, eye widening, and so forth, which combine to form facial expressions. Although prior methods have obtained high recognition rates for recognizing facial action units, these methods either use manually preprocessed image sequences or require human specification of facial features; thus, they have exploited substantial human intervention. This paper presents a fully automatic method, requiring no such human specification. The system first robustly detects the pupils using an infrared sensitive camera equipped with infrared LEDs. For each frame, the pupil positions are used to localize and normalize eye and eyebrow regions, which are analyzed using PCA to recover parameters that re...

• Type: Conference
• Year: 2003
• Where: AMFG
• Authors: Ashish Kapoor, Yuan (Alan) Qi, Rosalind W. Picard
• Keywords: AMFG 2003, Biometrics, Facial, Facial Action, Facial Action Units