Distributing expressional faces in 2-D emotional space

Yangzhou Du, Wenyuan Bi, Tao Wang, Yimin Zhang, Haizhou Ai
2007 Proceedings of the 6th ACM international conference on Image and video retrieval - CIVR '07  
Facial expressions are often classified into one of several basic emotion categories. This categorical approach seems improper to treat faces with blended emotion, as well as hard to measure the intensity of an emotion. In this paper facial expressions are evaluated with dimensional approach of affect that was originally introduced by psycho-physiologic study. An expressional face can be represented as a point in a two-dimensional (2-D) emotional space characterized by arousal and valence
more » ... s. To link low-level face features with emotional factors, we propose a simple method that builds an emotional mapping by a coarse labeling on Cohn-Kanade database and a linear fitting on the labeled data. Our preliminary experimental result shows that the proposed emotional mapping can be used to visualize the distribution of affective content in a large face set and further retrieval expressional face images or relevant video shots by specifying a region in the 2-D emotional space.
doi:10.1145/1282280.1282339 dblp:conf/civr/DuBWZA07 fatcat:afnagprv55g5rpmrcn6oz4zgm4