Facial expression recognition in JAFFE dataset based on Gaussian process classification

Authors:
Fei Cheng;Jiangsheng Yu;Huilin Xiong
Affiliations:
Department of Mathematics, Beijing Jiaotong University, Beijing, China;Department of Computer Science and Technology, Key Laboratory of High Confidence Software Technologies, Ministry of Education, Peking University, Beijing, China;Department of Automation, Shanghai Jiaotong University, Shanghai, China
Venue:
IEEE Transactions on Neural Networks
Year:
2010

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Abstract

The Gaussian process (GP) approaches to classification synthesize Bayesian methods and kernel techniques, which are developed for the purpose of small sample analysis. Here we propose a GP model and investigate it for the facial expression recognition in the Japanese female facial expression dataset. By the strategy of leave-one-out cross validation, the accuracy of the GP classifiers reaches 93.43% without any feature selection/extraction. Even when tested on all expressions of any particular expressor, the GP classifier trained by the other samples outperforms some frequently used classifiers significantly. In order to survey the robustness of this novel method, the random trial of 10-fold cross validations is repeated many times to provide an overview of recognition rates. The experimental results demonstrate a promising performance of this application.