[1]SUN Zheng-xing,XU Wen-hui.Fac ial expression recogn ition based on local SVM classif iers[J].CAAI Transactions on Intelligent Systems,2008,3(5):455-466.
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Fac ial expression recogn ition based on local SVM classif iers

CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume: 3 Number of periods: 2008 5 Page number: 455-466 Column: 学术论文—机器感知与模式识别 Public date: 2008-10-25
Title:
Fac ial expression recogn ition based on local SVM classif iers
Author(s):
SUN Zheng-xing;  XU Wen-hui
State Key Lab forNovel Software Technology, Nanjing University, Nanjing 210093, China
Keywords:
facial exp ression recognition;  local SVM;  active shape model;  geometry feature
CLC:
TP391
DOI:
-
Abstract:
This paper p resents a novel technique developed for the identification of facial exp ressions in video sources. The method uses two step s: facial exp ression feature extraction and exp ression classification. Firstwe used an active shape model (ASM) based on a facial point tracking system to extract the geometric features of facial ex2 p ressions in videos. Then a new type of local support vectormachine (LSVM) was created to classify the facial ex2 p ressions. Four different classifiers using KNN, SVM, KNN2SVM, and LSVM were compared with the new LSVM. The results on the Cohn2Kanade database showed the effectiveness of ourmethod
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