A Modified Sparse Representation Method for Facial Expression Recognition

المؤلفون المشاركون

Xu, Lihong
Wang, Wei

المصدر

Computational Intelligence and Neuroscience

العدد

المجلد 2016، العدد 2016 (31 ديسمبر/كانون الأول 2015)، ص ص. 1-12، 12ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2016-01-04

دولة النشر

مصر

عدد الصفحات

12

التخصصات الرئيسية

الأحياء

الملخص EN

In this paper, we carry on research on a facial expression recognition method, which is based on modified sparse representation recognition (MSRR) method.

On the first stage, we use Haar-like+LPP to extract feature and reduce dimension.

On the second stage, we adopt LC-K-SVD (Label Consistent K-SVD) method to train the dictionary, instead of adopting directly the dictionary from samples, and add block dictionary training into the training process.

On the third stage, stOMP (stagewise orthogonal matching pursuit) method is used to speed up the convergence of OMP (orthogonal matching pursuit).

Besides, a dynamic regularization factor is added to iteration process to suppress noises and enhance accuracy.

We verify the proposed method from the aspect of training samples, dimension, feature extraction and dimension reduction methods and noises in self-built database and Japan’s JAFFE and CMU’s CK database.

Further, we compare this sparse method with classic SVM and RVM and analyze the recognition effect and time efficiency.

The result of simulation experiment has shown that the coefficient of MSRR method contains classifying information, which is capable of improving the computing speed and achieving a satisfying recognition result.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Wang, Wei& Xu, Lihong. 2016. A Modified Sparse Representation Method for Facial Expression Recognition. Computational Intelligence and Neuroscience،Vol. 2016, no. 2016, pp.1-12.
https://search.emarefa.net/detail/BIM-1099706

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Wang, Wei& Xu, Lihong. A Modified Sparse Representation Method for Facial Expression Recognition. Computational Intelligence and Neuroscience Vol. 2016, no. 2016 (2015), pp.1-12.
https://search.emarefa.net/detail/BIM-1099706

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Wang, Wei& Xu, Lihong. A Modified Sparse Representation Method for Facial Expression Recognition. Computational Intelligence and Neuroscience. 2016. Vol. 2016, no. 2016, pp.1-12.
https://search.emarefa.net/detail/BIM-1099706

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-1099706