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Uncertainty estimation is important for interpreting the trustworthiness of machine learning models in many applications. This is especially critical in the data-driven active learning setting where the goal is to achieve a certain accuracy…

Computer Vision and Pattern Recognition · Computer Science 2020-07-14 Bo Li , Tommy Sonne Alstrøm

We address the problem of facial expression editing by controling the relative variation of facial action-unit (AU) from the same person. This enables us to edit this specific person's expression in a fine-grained, continuous and…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Mengting Wei , Tuomas Varanka , Xingxun Jiang , Huai-Qian Khor , Guoying Zhao

Facial expression transfer between two unpaired images is a challenging problem, as fine-grained expression is typically tangled with other facial attributes. Most existing methods treat expression transfer as an application of expression…

Computer Vision and Pattern Recognition · Computer Science 2021-04-16 Zhiwen Shao , Hengliang Zhu , Junshu Tang , Xuequan Lu , Lizhuang Ma

Facial expressions are combinations of basic components called Action Units (AU). Recognizing AUs is key for developing general facial expression analysis. In recent years, most efforts in automatic AU recognition have been dedicated to…

Computer Vision and Pattern Recognition · Computer Science 2018-03-26 Ciprian A. Corneanu , Meysam Madadi , Sergio Escalera

Detecting action units (AUs) on human faces is challenging because various AUs make subtle facial appearance change over various regions at different scales. Current works have attempted to recognize AUs by emphasizing important regions.…

Computer Vision and Pattern Recognition · Computer Science 2019-08-27 Chen Ma , Li Chen , Junhai Yong

Understanding human affect from facial behavior requires not only accurate recognition but also structured reasoning over the latent dependencies that drive muscle activations and their expressive outcomes. Although Action Units (AUs) have…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Guanyu Hu , Tangzheng Lian , Dimitrios Kollias , Oya Celiktutan , Xinyu Yang

Facial expression recognition (FER) has emerged as a promising approach to the development of emotion-aware intelligent agents and systems. However, key challenges remain in utilizing FER in real-world contexts, including ensuring user…

Human-Computer Interaction · Computer Science 2025-07-31 Sanjeev Nahulanthran , Leimin Tian , Dana Kulić , Mor Vered

The activations of Facial Action Units (AUs) mutually influence one another. While the relationship between a pair of AUs can be complex and unique, existing approaches fail to specifically and explicitly represent such cues for each pair…

Computer Vision and Pattern Recognition · Computer Science 2022-08-03 Cheng Luo , Siyang Song , Weicheng Xie , Linlin Shen , Hatice Gunes

In facial action unit (AU) recognition tasks, regional feature learning and AU relation modeling are two effective aspects which are worth exploring. However, the limited representation capacity of regional features makes it difficult for…

Computer Vision and Pattern Recognition · Computer Science 2021-02-25 Jingwei Yan , Boyuan Jiang , Jingjing Wang , Qiang Li , Chunmao Wang , Shiliang Pu

Over the past decades the machine and deep learning community has celebrated great achievements in challenging tasks such as image classification. The deep architecture of artificial neural networks together with the plenitude of available…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Jessica Deuschel , Bettina Finzel , Ines Rieger

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

AffectNet is one of the most popular resources for facial expression recognition (FER) on relatively unconstrained in-the-wild images. Given that images were annotated by only one annotator with limited consistency checks on the data,…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Doo Yon Kim , Christian Wallraven

Dynamic Facial Expression Recognition (DFER) aims to identify human emotions from temporally evolving facial movements and plays a critical role in affective computing. While recent vision-language approaches have introduced semantic…

Computer Vision and Pattern Recognition · Computer Science 2025-07-17 Yu Liu , Leyuan Qu , Hanlei Shi , Di Gao , Yuhua Zheng , Taihao Li

In recent years, significant progress has been made in face recognition, which can be partially attributed to the availability of large-scale labeled face datasets. However, since the faces in these datasets usually contain limited degree…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Yichun Shi , Anil K. Jain

Facial Action Coding System is an approach for modeling the complexity of human emotional expression. Automatic action unit (AU) detection is a crucial research area in human-computer interaction. This paper describes our submission to the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-24 Duy Le Hoai , Eunchae Lim , Eunbin Choi , Sieun Kim , Sudarshan Pant , Guee-Sang Lee , Soo-Huyng Kim , Hyung-Jeong Yang

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

Employing deep learning-based approaches for fine-grained facial expression analysis, such as those involving the estimation of Action Unit (AU) intensities, is difficult due to the lack of a large-scale dataset of real faces with…

Computer Vision and Pattern Recognition · Computer Science 2019-05-31 Zhilei Liu , Guoxian Song , Jianfei Cai , Tat-Jen Cham , Juyong Zhang

Facial expression data is characterized by a significant imbalance, with most collected data showing happy or neutral expressions and fewer instances of fear or disgust. This imbalance poses challenges to facial expression recognition (FER)…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Yuhang Zhang , Yaqi Li , Lixiong Qin , Xuannan Liu , Weihong Deng

Recently, Knowledge Graphs (KGs) have been successfully coupled with Large Language Models (LLMs) to mitigate their hallucinations and enhance their reasoning capability, such as in KG-based retrieval-augmented frameworks. However, current…

Artificial Intelligence · Computer Science 2024-10-22 Bo Ni , Yu Wang , Lu Cheng , Erik Blasch , Tyler Derr

Facial action units (AUs) detection is fundamental to facial expression analysis. As AU occurs only in a small area of the face, region-based learning has been widely recognized useful for AU detection. Most region-based studies focus on a…

Computer Vision and Pattern Recognition · Computer Science 2020-02-12 Yao Xia