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Dynamic facial expression recognition in the wild remains challenging due to data scarcity and long-tail distributions, which hinder models from effectively learning the temporal dynamics of scarce emotions. To address these limitations, we…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Huanzhen Wang , Ziheng Zhou , Jiaqi Song , Li He , Yunshi Lan , Yan Wang , Wenqiang Zhang

The subjective perception of emotion leads to inconsistent labels from human annotators. Typically, utterances lacking majority-agreed labels are excluded when training an emotion classifier, which cause problems when encountering ambiguous…

Computation and Language · Computer Science 2024-10-14 Wen Wu , Bo Li , Chao Zhang , Chung-Cheng Chiu , Qiujia Li , Junwen Bai , Tara N. Sainath , Philip C. Woodland

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

Data augmentation is a key element of deep learning pipelines, as it informs the network during training about transformations of the input data that keep the label unchanged. Manually finding adequate augmentation methods and parameters…

Machine Learning · Computer Science 2022-02-09 Cédric Rommel , Thomas Moreau , Joseph Paillard , Alexandre Gramfort

In this paper, an effective pipeline to automatic 4D Facial Expression Recognition (4D FER) is proposed. It combines two growing but disparate ideas in Computer Vision -- computing the spatial facial deformations using tools from Riemannian…

Computer Vision and Pattern Recognition · Computer Science 2021-05-07 Qingkai Zhen , Di Huang , Yunhong Wang , Hassen Drira , Boulbaba Ben Amor , Mohamed Daoudi

The significance of emotion detection is increasing in education, entertainment, and various other domains. We are developing a system that can identify and transform facial expressions into emojis to provide immediate feedback.The project…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Abhilash Khuntia , Shubham Kale

Automated emotion recognition in the wild from facial images remains a challenging problem. Although recent advances in Deep Learning have supposed a significant breakthrough in this topic, strong changes in pose, orientation and point of…

Computer Vision and Pattern Recognition · Computer Science 2018-02-20 Gerard Pons , David Masip

In this paper we address the problem of multi-cue affect recognition in challenging scenarios such as child-robot interaction. Towards this goal we propose a method for automatic recognition of affect that leverages body expressions…

Computer Vision and Pattern Recognition · Computer Science 2019-09-06 Panagiotis P. Filntisis , Niki Efthymiou , Petros Koutras , Gerasimos Potamianos , Petros Maragos

The hindering problem in facial expression recognition (FER) is the presence of inaccurate annotations referred to as noisy annotations in the datasets. These noisy annotations are present in the datasets inherently because the labeling is…

Computer Vision and Pattern Recognition · Computer Science 2023-05-04 Darshan Gera , Badveeti Naveen Siva Kumar , Bobbili Veerendra Raj Kumar , S Balasubramanian

The tremendous development in deep learning has led facial expression recognition (FER) to receive much attention in the past few years. Although 3D FER has an inherent edge over its 2D counterpart, work on 2D images has dominated the…

Computer Vision and Pattern Recognition · Computer Science 2021-09-17 Faizan Farooq Khan , Syed Zulqarnain Gilani

Facial analysis models are increasingly applied in real-world applications that have significant impact on peoples' lives. However, as literature has shown, models that automatically classify facial attributes might exhibit algorithmic…

Computer Vision and Pattern Recognition · Computer Science 2022-06-15 Camila Kolling , Victor Araujo , Adriano Veloso , Soraia Raupp Musse

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

The Complex Emotion Recognition System (CERS) deciphers complex emotional states by examining combinations of basic emotions expressed, their interconnections, and the dynamic variations. Through the utilization of advanced algorithms, CERS…

Signal Processing · Electrical Eng. & Systems 2024-09-13 Javad Hassannataj Joloudari , Mohammad Maftoun , Bahareh Nakisa , Roohallah Alizadehsani , Meisam Yadollahzadeh-Tabari

Machine learning models trained on imbalanced datasets often exhibit intersectional biases-systematic errors arising from the interaction of multiple attributes such as object class and environmental conditions. This paper presents a…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Farjana Yesmin

Medical tasks are prone to inter-rater variability due to multiple factors such as image quality, professional experience and training, or guideline clarity. Training deep learning networks with annotations from multiple raters is a common…

Image and Video Processing · Electrical Eng. & Systems 2023-01-13 Andreanne Lemay , Charley Gros , Enamundram Naga Karthik , Julien Cohen-Adad

Dynamic facial expression recognition (DFER) faces significant challenges due to long-tailed category distributions and complexity of spatio-temporal feature modeling. While existing deep learning-based methods have improved DFER…

Computer Vision and Pattern Recognition · Computer Science 2026-01-05 Feng-Qi Cui , Zhen Lin , Xinlong Rao , Anyang Tong , Shiyao Li , Fei Wang , Changlin Chen , Bin Liu

Unsupervised image anomaly detection (UAD) has become a critical process in industrial and medical applications, but it faces growing challenges due to increasing concerns over data privacy. The limited class diversity inherent to one-class…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-12-30 Silin Chen , Andy Liu , Kangjian Di , Yichu Xu , Han-Jia Ye , Wenhan Luo , Ningmu Zou

Augmenting data in image space (eg. flipping, cropping etc) and activation space (eg. dropout) are being widely used to regularise deep neural networks and have been successfully applied on several computer vision tasks. Unlike previous…

Computer Vision and Pattern Recognition · Computer Science 2019-07-17 Binod Bhattarai , Rumeysa Bodur , Tae-Kyun Kim

Emotion being a subjective thing, leveraging knowledge and science behind labeled data and extracting the components that constitute it, has been a challenging problem in the industry for many years. With the evolution of deep learning in…

Computer Vision and Pattern Recognition · Computer Science 2017-06-07 Prudhvi Raj Dachapally

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