EKSTRAKSI CIRI CITRA WAJAH MENGGUNAKAN GEOMETRIC MOMENT INVARIANTS UNTUK KLASIFIKASI EKSPRESI WAJAH PADA CITRA MULTIPLE FACE

LESTARI, AYU and Fachrurrozi, Muhammad and Arsalan, Osvari (2018) EKSTRAKSI CIRI CITRA WAJAH MENGGUNAKAN GEOMETRIC MOMENT INVARIANTS UNTUK KLASIFIKASI EKSPRESI WAJAH PADA CITRA MULTIPLE FACE. Undergraduate thesis, Sriwijaya University.

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Abstract

Research on human facial expression recognition has become a growing field. One important step in the recognition of facial expressions is feature extraction. This research uses Geometric Moment Invariants (GMI) as a feature extraction method. Research on facial expression recognition using either the GMI method or another method use single face image as the dataset. Therefore, in this study uses GMI feature extraction to classify facial expressions on multiple face images. Feature extraction from the results of self-codes will be compared with the results of GMI with OpenCV. Face detection process uses Viola-Jones method on OpenCV and classification process uses Multi Class SVM method. The results are features for each expression and a small average accuracy of 5 times except sad expressions. Sad expression with its self-code features get accuracy 77,26% and from features of OpenCV get accuracy of 78,10%. Therefore, the classification is also done with the k-fold cross validation technique with another classification method. The average accuracy results are still small. It is tested from k value 2 to10, and produce Multi Class SVM 10,2%, Decision Tree Classifier 14,73%, Random Forest Classifier 14,78%, Gaussian Naive Bayes 14,73%, Nearest Centroid 14,66%, MLP Classifier 11,09%, and Stochastic Gradient Descent Classifier 14,19%. The highest accuracy result is Random Forest Classifier method 14,78%. In Random Forest method, the best k value obtained is 4 with an average accuracy 16,18%.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Geometric Moment Invariants, Facial Expression, Multiple Face, Viola-Jones, Multi Class Support Vector Machines
Subjects:	R Medicine > R Medicine (General) > R858-859.7 Computer applications to medicine. Medical informatics
Divisions:	09-Faculty of Computer Science > 55201-Informatics (S1)
Depositing User:	Mrs Sri Astuti
Date Deposited:	02 Oct 2019 07:52
Last Modified:	02 Oct 2019 07:52
URI:	http://repository.unsri.ac.id/id/eprint/10040

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