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The study of Dynamic Facial Expression Recognition (DFER) is a nascent field of research that involves the automated recognition of facial expressions in video data. Although existing research has primarily focused on learning…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Feng Liu , Hanyang Wang , Siyuan Shen

Due to the subjective crowdsourcing annotations and the inherent inter-class similarity of facial expressions, the real-world Facial Expression Recognition (FER) datasets usually exhibit ambiguous annotation. To simplify the learning…

Computer Vision and Pattern Recognition · Computer Science 2025-12-04 Weijie Wang , Bo Li , Nicu Sebe , Bruno Lepri

Traditional techniques for emotion recognition have focused on the facial expression analysis only, thus providing limited ability to encode context that comprehensively represents the emotional responses. We present deep networks for…

Computer Vision and Pattern Recognition · Computer Science 2019-08-19 Jiyoung Lee , Seungryong Kim , Sunok Kim , Jungin Park , Kwanghoon Sohn

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

As affective robots become integral in human life, these agents must be able to fairly evaluate human affective expressions without discriminating against specific demographic groups. Identifying bias in Machine Learning (ML) systems as a…

Computer Vision and Pattern Recognition · Computer Science 2021-03-18 Ozgur Kara , Nikhil Churamani , Hatice Gunes

Facial Expression Recognition (FER) has consistently been a focal point in the field of facial analysis. In the context of existing methodologies for 3D FER or 2D+3D FER, the extraction of expression features often gets entangled with…

Computer Vision and Pattern Recognition · Computer Science 2024-03-14 Hebeizi Li , Hongyu Yang , Di Huang

In this paper, we present an approach based on convolutional neural networks (CNNs) for facial expression recognition in a difficult setting with severe occlusions. More specifically, our task is to recognize the facial expression of a…

Computer Vision and Pattern Recognition · Computer Science 2019-11-13 Mariana-Iuliana Georgescu , Radu Tudor Ionescu

We propose a convolutional neural network (CNN) architecture for facial expression recognition. The proposed architecture is independent of any hand-crafted feature extraction and performs better than the earlier proposed convolutional…

Computer Vision and Pattern Recognition · Computer Science 2016-08-18 Peter Burkert , Felix Trier , Muhammad Zeshan Afzal , Andreas Dengel , Marcus Liwicki

Human emotions involve basic and compound facial expressions. However, current research on facial expression recognition (FER) mainly focuses on basic expressions, and thus fails to address the diversity of human emotions in practical…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Xinyi Zou , Yan Yan , Jing-Hao Xue , Si Chen , Hanzi Wang

Annotating a qualitative large-scale facial expression dataset is extremely difficult due to the uncertainties caused by ambiguous facial expressions, low-quality facial images, and the subjectiveness of annotators. These uncertainties lead…

Computer Vision and Pattern Recognition · Computer Science 2020-03-09 Kai Wang , Xiaojiang Peng , Jianfei Yang , Shijian Lu , Yu Qiao

Student expression recognition has become an essential tool for assessing learning experiences and emotional states. This paper introduces xLSTM-FER, a novel architecture derived from the Extended Long Short-Term Memory (xLSTM), designed to…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Qionghao Huang , Jili Chen

We have developed a convolutional neural network for the purpose of recognizing facial expressions in human beings. We have fine-tuned the existing convolutional neural network model trained on the visual recognition dataset used in the…

Computer Vision and Pattern Recognition · Computer Science 2017-08-29 Viraj Mavani , Shanmuganathan Raman , Krishna P Miyapuram

The ever-increasing demands for intuitive interactions in Virtual Reality has triggered a boom in the realm of Facial Expression Recognition (FER). To address the limitations in existing approaches (e.g., narrow receptive fields and…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Yande Li , Mingjie Wang , Minglun Gong , Yonggang Lu , Li Liu

This work explores facial expression bias as a security vulnerability of face recognition systems. Despite the great performance achieved by state-of-the-art face recognition systems, the algorithms are still sensitive to a large range of…

Computer Vision and Pattern Recognition · Computer Science 2021-06-21 Alejandro Peña , Ignacio Serna , Aythami Morales , Julian Fierrez , Agata Lapedriza

In recent years, Facial Expression Recognition (FER) has gained increasing attention. Most current work focuses on supervised learning, which requires a large amount of labeled and diverse images, while FER suffers from the scarcity of…

Computer Vision and Pattern Recognition · Computer Science 2024-10-24 Jie Song , Mengqiao He , Jinhua Feng , Bairong Shen

Facial Expression Classification is an interesting research problem in recent years. There are a lot of methods to solve this problem. In this research, we propose a novel approach using Canny, Principal Component Analysis (PCA) and…

Computer Vision and Pattern Recognition · Computer Science 2011-11-18 Le Hoang Thai , Nguyen Do Thai Nguyen , Tran Son Hai

This comprehensive review delves deeply into the various methodologies applied to facial expression recognition (FER) through the lens of graph representation learning (GRL). Initially, we introduce the task of FER and the concepts of graph…

Computer Vision and Pattern Recognition · Computer Science 2024-11-14 Théo Gueuret , Akrem Sellami , Chaabane Djeraba

Face detection and recognition has been prevalent with research scholars and diverse approaches have been incorporated till date to serve purpose. The rampant advent of biometric analysis systems, which may be full body scanners, or iris…

Computer Vision and Pattern Recognition · Computer Science 2017-01-31 Smriti Tikoo , Nitin Malik

Emotions are best way of communicating information; and sometimes it carry more information than words. Recently, there has been a huge interest in automatic recognition of human emotion because of its wide spread application in security,…

Computer Vision and Pattern Recognition · Computer Science 2013-12-05 Nikunj Bajaj , Aurobinda Routray , S L Happy

Recognizing facial expressions from static images or video sequences is a widely studied but still challenging problem. The recent progresses obtained by deep neural architectures, or by ensembles of heterogeneous models, have shown that…

Computer Vision and Pattern Recognition · Computer Science 2018-10-25 Lisa Graziani , Stefano Melacci , Marco Gori