Title

Facial Expression Recognition with Convolutional Neural Networks

Document Type

Conference Proceeding

Publication Date

1-6-2020

Publication Title

2020 10th Annual Computing and Communication Workshop and Conference (CCWC)

Publisher

Institute of Electronics and Electrical Engineers

Publisher Location

Las Vegas, NV

First page number:

324

Last page number:

328

Abstract

Emotions are a powerful tool in communication and one way that humans show their emotions is through their facial expressions. One of the challenging and powerful tasks in social communications is facial expression recognition, as in non-verbal communication, facial expressions are key. In the field of Artificial Intelligence, Facial Expression Recognition (FER) is an active research area, with several recent studies using Convolutional Neural Networks (CNNs). In this paper, we demonstrate the classification of FER based on static images, using CNNs, without requiring any pre-processing or feature extraction tasks. The paper also illustrates techniques to improve future accuracy in this area by using pre-processing, which includes face detection and illumination correction. Feature extraction is used to extract the most prominent parts of the face, including the jaw, mouth, eyes, nose, and eyebrows. Furthermore, we also discuss the literature review and present our CNN architecture, and the challenges of using max-pooling and dropout, which eventually aided in better performance. We obtained a test accuracy of 61.7% on FER2013 in a seven-classes classification task compared to 75.2% in state-of-the-art classification.

Keywords

Facial Expression Recognition (FER); Convolutional Neural Networks (CNNs); Artificial Intelligence (AI); Facial Action Coding System (FACS); Pre-processing; Feature Extraction

Disciplines

Artificial Intelligence and Robotics

Language

English

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