Title
A semantic facial expression intensity descriptor based on information granules.
Abstract
This paper investigates a granular description for facial expression intensity in which characterization of motion-based expression features is presented by a collection of information granules. First, the motion-based features are extracted based on the facial landmarks to encode the expression intensity. Secondly, the semantic concepts are then generated by involving various mechanisms of fuzzy clustering based on the motion-based features. The resulting clusters can be viewed as numeric prototypes of the descriptors. The information granules are formed around the prototypes according to the principle of justifiable granularity, which is the fundamental idea of Granular Computing. The proposed granular descriptor for expression intensity is tested on the BU-3DFE database, and the experimental results illustrate that the proposed descriptors based on information granules not only can characterize the semantics of facial changes caused by expressions, but also can facilitate the semantic estimation of facial expression intensity.
Year
DOI
Venue
2020
10.1016/j.ins.2020.04.012
Information Sciences
Keywords
DocType
Volume
Facial expression intensity,Information granules,Granular descriptor,Fuzzy clustering,Semantic description
Journal
528
ISSN
Citations 
PageRank 
0020-0255
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Mingliang Xue1244.09
Duan Xiaodong28516.18
Wanquan Liu362981.29
Yan Ren4719.07