Facial expression recognition using Hough forest

Chi-Ting Hsu, Shih-Chung Hsu, Chung-Lin Huang
2013 2013 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference  
This paper introduces a new facial expression recognition system. Facial expressions analysis encounters two major problems: non-rigid morphing (human facial expression are non-rigid and shape deformation) and person-specific appearance (the facial action features are people-dependent). Our facial expression system analyzes the non-rigid morphing facial expressions and eliminates the person-specific effects through patch features extracted from facial motion due to different facial expressions.
more » ... Finally, classification and localization of the center of the facial expression in the video sequences are performed by using a Hough forest.
doi:10.1109/apsipa.2013.6694152 dblp:conf/apsipa/HsuHH13 fatcat:ndul5ox2wncifh2qzuzja2wcoa