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Facial Expression Recognition (FER) is a machine learning problem that deals with recognizing human facial expressions. While existing work has achieved performance improvements in recent years, FER in the wild and under challenging…

Computer Vision and Pattern Recognition · Computer Science 2024-08-14 Jia Le Ngwe , Kian Ming Lim , Chin Poo Lee , Thian Song Ong

Facial features are defined as the local relationships that exist amongst the pixels of a facial image. Hand-crafted descriptors identify the relationships of the pixels in the local neighbourhood defined by the kernel. Kernel is a two…

Multimedia · Computer Science 2022-01-05 Soumendu Chakraborty , Satish Kumar Singh , Pavan Chakraborty

Facial expression recognition (FER) systems raise significant privacy concerns due to the potential exposure of sensitive identity information. This paper presents a study on removing identity information while preserving FER capabilities.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-04 Feng Xu , David Ahmedt-Aristizabal , Lars Petersson , Dadong Wang , Xun Li

Facial emotion recognition (FER) is significant for human-computer interaction such as clinical practice and behavioral description. Accurate and robust FER by computer models remains challenging due to the heterogeneity of human faces and…

Computer Vision and Pattern Recognition · Computer Science 2021-05-11 Yousif Khaireddin , Zhuofa Chen

Facial expression recognition (FER) is still one challenging research due to the small inter-class discrepancy in the facial expression data. In view of the significance of facial crucial regions for FER, many existing researches utilize…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Guanghui Shi , Shasha Mao , Shuiping Gou , Dandan Yan , Licheng Jiao , Lin Xiong

Micro-expression recognition is one of the most challenging topics in affective computing. It aims to recognize tiny facial movements difficult for humans to perceive in a brief period, i.e., 0.25 to 0.5 seconds. Recent advances in…

Computer Vision and Pattern Recognition · Computer Science 2023-04-07 Xuan-Bac Nguyen , Chi Nhan Duong , Xin Li , Susan Gauch , Han-Seok Seo , Khoa Luu

With the transition of facial expression recognition (FER) from laboratory-controlled to challenging in-the-wild conditions and the recent success of deep learning techniques in various fields, deep neural networks have increasingly been…

Computer Vision and Pattern Recognition · Computer Science 2020-04-20 Shan Li , Weihong Deng

Deep Neural Networks (DNNs) have shown to outperform traditional methods in various visual recognition tasks including Facial Expression Recognition (FER). In spite of efforts made to improve the accuracy of FER systems using DNN, existing…

Computer Vision and Pattern Recognition · Computer Science 2020-04-17 Behzad Hasani , Mohammad H. Mahoor

Facial expression recognition is a topic of great interest in most fields from artificial intelligence and gaming to marketing and healthcare. The goal of this paper is to classify images of human faces into one of seven basic emotions. A…

Computer Vision and Pattern Recognition · Computer Science 2024-09-05 Akash Saravanan , Gurudutt Perichetla , K. S. Gayathri

Understanding human affective behaviour, especially in the dynamics of real-world settings, requires Facial Expression Recognition (FER) models to continuously adapt to individual differences in user expression, contextual attributions, and…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Nikhil Churamani , Tolga Dimlioglu , German I. Parisi , Hatice Gunes

Micro-Expression Recognition has become challenging, as it is extremely difficult to extract the subtle facial changes of micro-expressions. Recently, several approaches proposed several expression-shared features algorithms for…

Computer Vision and Pattern Recognition · Computer Science 2021-01-14 Ling Zhou , Qirong Mao , Xiaohua Huang , Feifei Zhang , Zhihong Zhang

In this paper, we present a sparsity-aware deep network for automatic 4D facial expression recognition (FER). Given 4D data, we first propose a novel augmentation method to combat the data limitation problem for deep learning. This is…

Computer Vision and Pattern Recognition · Computer Science 2020-08-20 Muzammil Behzad , Nhat Vo , Xiaobai Li , Guoying Zhao

Automated Facial Expression Recognition (FER) has remained a challenging and interesting problem. Despite efforts made in developing various methods for FER, existing approaches traditionally lack generalizability when applied to unseen…

Neural and Evolutionary Computing · Computer Science 2016-11-18 Ali Mollahosseini , David Chan , Mohammad H. Mahoor

We present a Fourier-based machine learning technique that characterizes and detects facial emotions. The main challenging task in the development of machine learning (ML) models for classifying facial emotions is the detection of accurate…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Aishwarya Gouru , Shan Suthaharan

Facial Expression Recognition(FER) is one of the most important topic in Human-Computer interactions(HCI). In this work we report details and experimental results about a facial expression recognition method based on state-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2021-01-25 Donato Cafarelli , Fabio Valerio Massoli , Fabrizio Falchi , Claudio Gennaro , Giuseppe Amato

Emotional Intelligence in Human-Computer Interaction has attracted increasing attention from researchers in multidisciplinary research fields including psychology, computer vision, neuroscience, artificial intelligence, and related…

Human-Computer Interaction · Computer Science 2020-02-25 Amine Djerghri , Ahmed Rachid Hazourli , Alice Othmani

Facial expression recognition (FER) is an essential task for understanding human behaviors. As one of the most informative behaviors of humans, facial expressions are often compound and variable, which is manifested by the fact that…

Computer Vision and Pattern Recognition · Computer Science 2023-03-02 Hanting Li , Hongjing Niu , Zhaoqing Zhu , Feng Zhao

With the strong robusticity on illumination variations, near-infrared (NIR) can be an effective and essential complement to visible (VIS) facial expression recognition in low lighting or complete darkness conditions. However, facial…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Bingjun Luo , Haowen Wang , Jinpeng Wang , Junjie Zhu , Xibin Zhao , Yue Gao

The seven basic facial expression classifications are a basic way to express complex human emotions and are an important part of artificial intelligence research. Based on the traditional Bayesian neural network framework, the ResNet18_BNN…

Computer Vision and Pattern Recognition · Computer Science 2021-07-14 Yuan Tai , Yihua Tan , Wei Gong , Hailan Huang

Micro-expression, for its high objectivity in emotion detection, has emerged to be a promising modality in affective computing. Recently, deep learning methods have been successfully introduced into the micro-expression recognition area.…

Computer Vision and Pattern Recognition · Computer Science 2019-08-28 Chongyang Wang , Min Peng , Tao Bi , Tong Chen