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Facial Action Units (AUs) are essential for conveying psychological states and emotional expressions. While automatic AU detection systems leveraging deep learning have progressed, they often overfit to specific datasets and individual…

Computer Vision and Pattern Recognition · Computer Science 2025-03-13 Yong Li , Yi Ren , Xuesong Niu , Yi Ding , Xiu-Shen Wei , Cuntai Guan

Chronic pain is a global health challenge affecting millions of individuals, making it essential for physicians to have reliable and objective methods to measure the functional impact of clinical treatments. Traditionally used methods, like…

Machine Learning · Computer Science 2026-03-23 Yuanheng Mao , Lillian Yang , Stephen Yang , Ethan Shao , Zihan Li

In this paper, we investigate the impact of some of the commonly used settings for (a) preprocessing face images, and (b) classification and training, on Action Unit (AU) detection performance and complexity. We use in our investigation a…

Computer Vision and Pattern Recognition · Computer Science 2021-11-17 Mina Bishay , Ahmed Ghoneim , Mohamed Ashraf , Mohammad Mavadati

Engagement in virtual learning is essential for participant satisfaction, performance, and adherence, particularly in online education and virtual rehabilitation, where interactive communication plays a key role. Yet, accurately measuring…

Computer Vision and Pattern Recognition · Computer Science 2025-07-25 Ali Abedi , Sadaf Safa , Tracey J. F. Colella , Shehroz S. Khan

The project leverages advanced machine and deep learning techniques to address the challenge of emotion recognition by focusing on non-facial cues, specifically hands, body gestures, and gestures. Traditional emotion recognition systems…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Haoyang Liu

Advances in animal motion tracking and pose recognition have been a game changer in the study of animal behavior. Recently, an increasing number of works go 'deeper' than tracking, and address automated recognition of animals' internal…

Facial action unit (AU) detection is a challenging task due to the scarcity of manual annotations. Recent works on AU detection with self-supervised learning have emerged to address this problem, aiming to learn meaningful AU…

Computer Vision and Pattern Recognition · Computer Science 2023-03-13 Juan Song , Zhilei Liu

Affective computing plays a key role in human-computer interactions, entertainment, teaching, safe driving, and multimedia integration. Major breakthroughs have been made recently in the areas of affective computing (i.e., emotion…

Multimedia · Computer Science 2022-03-22 Yan Wang , Wei Song , Wei Tao , Antonio Liotta , Dawei Yang , Xinlei Li , Shuyong Gao , Yixuan Sun , Weifeng Ge , Wei Zhang , Wenqiang Zhang

Facial Emotion Analysis (FEA) extends traditional facial emotion recognition by incorporating explainable, fine-grained reasoning. The task integrates three subtasks: emotion recognition, facial Action Unit (AU) recognition, and AU-based…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Jiulong Wu , Yucheng Shen , Lingyong Yan , Haixin Sun , Deguo Xia , Jizhou Huang , Min Cao

Facial Emotion Analysis (FEA) plays a crucial role in visual affective computing, aiming to infer a person's emotional state based on facial data. Scientifically, facial expressions (FEs) result from the coordinated movement of facial…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Zhuozhao Hu , Kaishen Yuan , Xin Liu , Zitong Yu , Yuan Zong , Jingang Shi , Huanjing Yue , Jingyu Yang

Affective computing has been largely limited in terms of available data resources. The need to collect and annotate diverse in-the-wild datasets has become apparent with the rise of deep learning models, as the default approach to address…

Computer Vision and Pattern Recognition · Computer Science 2019-10-14 Dimitrios Kollias , Stefanos Zafeiriou

Diagnosis based on medical images, such as X-ray images, often involves manual annotation of anatomical keypoints. However, this process involves significant human efforts and can thus be a bottleneck in the diagnostic process. To fully…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Jinhee Kim , Taesung Kim , Taewoo Kim , Jaegul Choo , Dong-Wook Kim , Byungduk Ahn , In-Seok Song , Yoon-Ji Kim

Facial action unit (AU) recognition is essential to facial expression analysis. Since there are highly positive or negative correlations between AUs, some existing AU recognition works have focused on modeling AU relations. However,…

Computer Vision and Pattern Recognition · Computer Science 2022-10-26 Yao Wei , Haoxiang Wang , Mingze Sun , Jiawang Liu

Accurate pain assessment in patients with limited ability to communicate, such as older adults with severe dementia, represents a critical healthcare challenge. Robust automated systems of pain behavior detection may facilitate such…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Babak Taati , Muhammad Muzammil , Yasamin Zarghami , Abhishek Moturu , Amirhossein Kazerouni , Hailey Reimer , Alex Mihailidis , Thomas Hadjistavropoulos

Facial Action Units detection (FAUs) represents a fine-grained classification problem that involves identifying different units on the human face, as defined by the Facial Action Coding System. In this paper, we present a simple yet…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Tu Vu , Van Thong Huynh , Soo Hyung Kim

Computer Use Agents (CUAs) operate interfaces by pointing, clicking, and typing -- mirroring interactions of sighted users (SUs) who can thus monitor CUAs and share control. CUAs do not reflect interactions by blind and low-vision users…

Human-Computer Interaction · Computer Science 2026-02-11 Ananya Gubbi Mohanbabu , Rosiana Natalie , Brandon Kim , Anhong Guo , Amy Pavel

Facial expression is a way of communication that can be used to interact with computers or other electronic devices and the recognition of emotion from faces is an emerging practice with application in many fields. There are many…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Salik Ram Khanal , Prabin Sharma , Hugo Fernandes , João Barroso , Vítor Manuel de Jesus Filipe

Facial Action Unit (AU) detection seeks to recognize subtle facial muscle activations as defined by the Facial Action Coding System (FACS). A primary challenge w.r.t AU detection is the effective learning of discriminative and generalizable…

Computer Vision and Pattern Recognition · Computer Science 2026-02-17 Yong Li , Yi Ren , Yizhe Zhang , Wenhua Zhang , Tianyi Zhang , Muyun Jiang , Guo-Sen Xie , Cuntai Guan

Facial Action Unit (AU) detection is a crucial task for emotion analysis from facial movements. The apparent differences of different subjects sometimes mislead changes brought by AUs, resulting in inaccurate results. However, most of the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Jiyuan Cao , Zhilei Liu , Yong Zhang

Continuous monitoring and patient acuity assessments are key aspects of Intensive Care Unit (ICU) practice, but both are limited by time constraints imposed on healthcare providers. Moreover, anticipating clinical trajectories remains…

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