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Representation learning and feature disentanglement have garnered significant research interest in the field of facial expression recognition (FER). The inherent ambiguity of emotion labels poses challenges for conventional supervised…

Computer Vision and Pattern Recognition · Computer Science 2024-10-11 Jia Li , Jiantao Nie , Dan Guo , Richang Hong , Meng Wang

This paper presents a classifier ensemble for Facial Expression Recognition (FER) based on models derived from transfer learning. The main experimentation work is conducted for facial action unit detection using feature extraction and…

Computer Vision and Pattern Recognition · Computer Science 2018-07-20 Yen Khye Lim , Zukang Liao , Stavros Petridis , Maja Pantic

The COVID-19 pandemic has undoubtedly changed the standards and affected all aspects of our lives, especially social communication. It has forced people to extensively wear medical face masks, in order to prevent transmission. This face…

Computer Vision and Pattern Recognition · Computer Science 2023-05-29 Nikolaos Kegkeroglou , Panagiotis P. Filntisis , Petros Maragos

Facial expression recognition (FER) is an important research topic in emotional artificial intelligence. In recent decades, researchers have made remarkable progress. However, current FER paradigms face challenges in generalization, lack…

Computer Vision and Pattern Recognition · Computer Science 2024-08-22 Bohao Xing , Zitong Yu , Xin Liu , Kaishen Yuan , Qilang Ye , Weicheng Xie , Huanjing Yue , Jingyu Yang , Heikki Kälviäinen

Building AI systems, including Facial Expression Recognition (FER), involves two critical aspects: data and model design. Both components significantly influence bias and fairness in FER tasks. Issues related to bias and fairness in FER…

Computer Vision and Pattern Recognition · Computer Science 2025-10-29 Mohammad Mehdi Hosseini , Ali Pourramezan Fard , Mohammad H. Mahoor

In this work, we have proposed several enhancements to improve the performance of any facial emotion recognition (FER) system. We believe that the changes in the positions of the fiducial points and the intensities capture the crucial…

Computer Vision and Pattern Recognition · Computer Science 2019-02-15 Ram Krishna Pandey , Souvik Karmakar , A G Ramakrishnan , Nabagata Saha

People can innately recognize human facial expressions in unnatural forms, such as when depicted on the unusual faces drawn in cartoons or when applied to an animal's features. However, current machine learning algorithms struggle with…

Computer Vision and Pattern Recognition · Computer Science 2023-04-06 Michael Stettler , Alexander Lappe , Nick Taubert , Martin Giese

Facial Expression Recognition (FER) uses images of faces to identify the emotional state of users, allowing for a closer interaction between humans and autonomous systems. Unfortunately, as the images naturally integrate some demographic…

Computer Vision and Pattern Recognition · Computer Science 2024-02-07 Iris Dominguez-Catena , Daniel Paternain , Mikel Galar

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

Facial expression recognition (FER) algorithms classify facial expressions into emotions such as happy, sad, or angry. An evaluative challenge facing FER algorithms is the fall in performance when detecting spontaneous expressions compared…

Computer Vision and Pattern Recognition · Computer Science 2025-07-16 Rina Khan , Catherine Stinson

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

Dynamic facial expression recognition (DFER) in the wild is an extremely challenging task, due to a large number of noisy frames in the video sequences. Previous works focus on extracting more discriminative features, but ignore…

Computer Vision and Pattern Recognition · Computer Science 2022-06-13 Hanting Li , Mingzhe Sui , Zhaoqing Zhu , Feng zhao

Recently, facial expression recognition (FER) in the wild has gained a lot of researchers' attention because it is a valuable topic to enable the FER techniques to move from the laboratory to the real applications. In this paper, we focus…

Computer Vision and Pattern Recognition · Computer Science 2020-08-14 Xingxun Jiang , Yuan Zong , Wenming Zheng , Chuangao Tang , Wanchuang Xia , Cheng Lu , Jiateng Liu

Facial Expression Recognition (FER) in the wild is still challenging due to uncontrolled variations in pose, occlusion, and illumination. Most existing attention-based methods primarily rely on visual appearance cues, suffering from…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Jiaxin Wang , Muwei Jian , Hui Yu , Junyu Dong , Yifan Xia

Facial Expressions Recognition(FER) on low-resolution images is necessary for applications like group expression recognition in crowd scenarios(station, classroom etc.). Classifying a small size facial image into the right expression…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Wei Jing , Feng Tian , Jizhong Zhang , Kuo-Ming Chao , Zhenxin Hong , Xu Liu

Facial expressions vary from person to person, and the brightness, contrast, and resolution of every random image are different. This is why recognizing facial expressions is very difficult. This article proposes an efficient system for…

Computer Vision and Pattern Recognition · Computer Science 2022-09-26 Faisal Ghaffar

This work describes different strategies to generate unsupervised representations obtained through the concept of self-taught learning for facial emotion recognition (FER). The idea is to create complementary representations promoting…

Computer Vision and Pattern Recognition · Computer Science 2022-04-28 Bruna Delazeri , Leonardo L. Veras , Alceu de S. Britto , Jean Paul Barddal , Alessandro L. Koerich

Reliable facial expression learning (FEL) involves the effective learning of distinctive facial expression characteristics for more reliable, unbiased and accurate predictions in real-life settings. However, current systems struggle with…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Azmine Toushik Wasi , Taki Hasan Rafi , Raima Islam , Karlo Serbetar , Dong Kyu Chae

In this paper, the multi-task learning of lightweight convolutional neural networks is studied for face identification and classification of facial attributes (age, gender, ethnicity) trained on cropped faces without margins. The necessity…

Computer Vision and Pattern Recognition · Computer Science 2021-10-28 Andrey V. Savchenko

Facial expression recognition (FER) is a crucial task in computer vision with wide range of applications including human computer interaction, surveillance, and assistive technologies. However, challenges such as occlusion, expression…

Computer Vision and Pattern Recognition · Computer Science 2025-08-29 Debasis Maji , Debaditya Barman