DocumentCode :
3638764
Title :
Mouth open or closed decision for frontal face images with given eye locations
Author :
Mikael Nilsson;Irina Gertsovich;Josef Ström Bartůněk
Author_Institution :
Department of Electrical Engineering, Blekinge Institute of Technology, SE-371 79 Karlskrona, Sweden
fYear :
2010
Firstpage :
1
Lastpage :
6
Abstract :
Determination of the open/closed state of a mouth is a desired feature considering the face ISO standard. In this paper a simple score is proposed for automatic mouth open/closed decision. Landmarks around the mouth are explored in order to calculate the score. Analysis of mouth location, scale and rotation introduced by nonreflective similarity transformations utilizing prior knowledge regarding the eye locations with the accompanied Jesorsky error is presented. Further, a novel system is proposed in which a search in the four dimensions; position, scale, rotation and shape variation is combined with a discriminative classifier in order to perform alignment of the landmarks. The system is evaluated on the XM2VTS and IMM face databases indicating the feasibility of the proposed system. The evaluation is presented utilizing a cumulative distribution of the mouth open/closed score error.
Keywords :
"Mouth","Shape","Databases","Face","Image edge detection","Space exploration","Transforms"
Publisher :
ieee
Conference_Titel :
Biometrics: Theory Applications and Systems (BTAS), 2010 Fourth IEEE International Conference on
Print_ISBN :
978-1-4244-7581-0
Type :
conf
DOI :
10.1109/BTAS.2010.5634522
Filename :
5634522
Link To Document :
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