3D Facial Action Units Recognition for Emotional Expression

Norhaida, Hussain and Hamimah, Ujir and Irwandi Hipni, Mohamad Hipiny and Jacey-Lynn, Minoi (2019) 3D Facial Action Units Recognition for Emotional Expression. International Journal of Recent Technology and Engineering (IJRTE), 8 (2S8). pp. 1317-1323. ISSN 2277-3878

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Official URL: https://arxiv.org/abs/1712.00195


units (AUs) when a facial expression is shown by a human face. This paper presents the methods to recognize AU using a distance feature between facial points which activates the muscles. The seven AU involved are AU1, AU4, AU6, AU12, AU15, AU17 and AU25 that characterizes a happy and sad expression. The recognition is performed on each AU according to the rules defined based on the distance of each facial point. The facial distances chosen are computed from twelve salient facial points. Then the facial distances are trained using Support Vector Machine (SVM) and Neural Network (NN). Classification result using SVM is presented with several different SVM kernels while result using NN is presented for each training, validation and testing phase. By using any SVM kernels, it is consistent that AUs that are corresponded to sad expression has a high recognition compared to happy expression. The highest average kernel performance across AUs is 93%, scored by quadratic kernel. Best results for NN across AUs is for AU25 (Lips parted) with lowest CE (0.38%) and 0% incorrect classification.

Item Type: Article
Additional Information: Information, Communication and Creative Technology
Uncontrolled Keywords: 3D AU recognition, facial action unit’s recognition, facial expression, Support Vector Machine, Neural Network, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, research, Universiti Malaysia Sarawak.
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Academic Faculties, Institutes and Centres > Faculty of Computer Science and Information Technology
Depositing User: Gani
Date Deposited: 25 Sep 2019 05:32
Last Modified: 29 Sep 2022 02:28
URI: http://ir.unimas.my/id/eprint/27114

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