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Related papers: HiCOMEX: Facial Action Unit Recognition Based on H…

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Recognizing human emotion/expressions automatically is quite an expected ability for intelligent robotics, as it can promote better communication and cooperation with humans. Current deep-learning-based algorithms may achieve impressive…

Computer Vision and Pattern Recognition · Computer Science 2021-04-05 Tao Pu , Tianshui Chen , Yuan Xie , Hefeng Wu , Liang Lin

Most state-of-the-art approaches for Facial Action Unit (AU) detection rely upon evaluating facial expressions from static frames, encoding a snapshot of heightened facial activity. In real-world interactions, however, facial expressions…

Computer Vision and Pattern Recognition · Computer Science 2021-03-05 Nikhil Churamani , Sinan Kalkan , Hatice Gunes

Facial action units (FAUs) are critical for fine-grained facial expression analysis. Although FAU detection has been actively studied using ideally high quality images, it was not thoroughly studied under heavily occluded conditions. In…

Computer Vision and Pattern Recognition · Computer Science 2022-12-09 Minyang Jiang , Yongwei Wang , Martin J. McKeown , Z. Jane Wang

Facial action unit (AU) intensity plays a pivotal role in quantifying fine-grained expression behaviors, which is an effective condition for facial expression manipulation. However, publicly available datasets containing intensity…

Computer Vision and Pattern Recognition · Computer Science 2024-04-11 Shiwei Jin , Zhen Wang , Lei Wang , Peng Liu , Ning Bi , Truong Nguyen

For the Facial Action Unit (AU) detection task, accurately capturing the subtle facial differences between distinct AUs is essential for reliable detection. Additionally, AU detection faces challenges from class imbalance and the presence…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Ziqiao Shang , Bin Liu , Fengmao Lv , Fei Teng , Tianrui Li , Lan-Zhe Guo

Facial micro-expressions are spontaneous, brief and subtle facial motions that unveil the underlying, suppressed emotions. Detecting Action Units (AUs) in micro-expressions is crucial because it yields a finer representation of facial…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Huai-Qian Khor , Yante Li , Xingxun Jiang , Guoying Zhao

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

Customizable 3D avatar-based facial expression stimuli may improve user engagement in behavioral biomarker discovery and therapeutic intervention for autism, Alzheimer's disease, facial palsy, and more. However, there is a lack of…

The recently developed Equine Facial Action Coding System (EquiFACS) provides a precise and exhaustive, but laborious, manual labelling method of facial action units of the horse. To automate parts of this process, we propose a Deep…

Computer Vision and Pattern Recognition · Computer Science 2021-05-05 Zhenghong Li , Sofia Broomé , Pia Haubro Andersen , Hedvig Kjellström

Despite the success of deep neural networks on facial action unit (AU) detection, better performance depends on a large number of training images with accurate AU annotations. However, labeling AU is time-consuming, expensive, and…

Computer Vision and Pattern Recognition · Computer Science 2021-05-17 Yong Li , Shiguang Shan

The muscular activities caused the activation of certain AUs for every facial expression at the certain duration of time throughout the facial expression. This paper presents the methods to recognise facial Action Unit (AU) using facial…

Computer Vision and Pattern Recognition · Computer Science 2017-12-04 N. Hussain , H. Ujir , I. Hipiny , J-L Minoi

The field of Automatic Facial Expression Analysis has grown rapidly in recent years. However, despite progress in new approaches as well as benchmarking efforts, most evaluations still focus on either posed expressions, near-frontal…

Computer Vision and Pattern Recognition · Computer Science 2017-02-15 Michel F. Valstar , Enrique Sánchez-Lozano , Jeffrey F. Cohn , László A. Jeni , Jeffrey M. Girard , Zheng Zhang , Lijun Yin , Maja Pantic

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

Facial expression analysis is an important tool for human-computer interaction. In this paper, we introduce LibreFace, an open-source toolkit for facial expression analysis. This open-source toolbox offers real-time and offline analysis of…

Computer Vision and Pattern Recognition · Computer Science 2023-08-28 Di Chang , Yufeng Yin , Zongjian Li , Minh Tran , Mohammad Soleymani

Recognising continuous emotions and action unit (AU) intensities from face videos requires a spatial and temporal understanding of expression dynamics. Existing works primarily rely on 2D face appearances to extract such dynamics. This work…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Mani Kumar Tellamekala , Ömer Sümer , Björn W. Schuller , Elisabeth André , Timo Giesbrecht , Michel Valstar

We propose a novel convolutional neural network approach to address the fine-grained recognition problem of multi-view dynamic facial action unit detection. We leverage recent gains in large-scale object recognition by formulating the task…

Computer Vision and Pattern Recognition · Computer Science 2018-08-21 Andres Romero , Juan Leon , Pablo Arbelaez

Facial action unit recognition is an important task for facial analysis. Owing to the complex collection environment, facial action unit recognition in the wild is still challenging. The 3rd competition on affective behavior analysis…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Shangfei Wang , Yanan Chang , Jiahe Wang

Facial action units (AUs) are essential to decode human facial expressions. Researchers have focused on training AU detectors with a variety of features and classifiers. However, several issues remain. These are spatial representation,…

Computer Vision and Pattern Recognition · Computer Science 2016-08-03 Wen-Sheng Chu , Fernando De la Torre , Jeffrey F. Cohn

Biologically inspired features, such as Gabor filters, result in very high dimensional measurement. Does reducing the dimensionality of the feature space afford advantages beyond computational efficiency? Do some approaches to…

Computer Vision and Pattern Recognition · Computer Science 2016-03-29 Zhuo Hui , Wen-Sheng Chu

Facial palsy is unilateral facial nerve weakness or paralysis of rapid onset with unknown causes. Automatically estimating facial palsy severeness can be helpful for the diagnosis and treatment of people suffering from it across the world.…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Xuri Ge , Joemon M. Jose , Pengcheng Wang , Arunachalam Iyer , Xiao Liu , Hu Han