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Facial expressions are important cues to observe human emotions. Facial expression recognition has attracted many researchers for years, but it is still a challenging topic since expression features vary greatly with the head poses,…

Computer Vision and Pattern Recognition · Computer Science 2020-09-15 S. D. Lalitha , K. K. Thyagharajan

Understanding emotions and expressions is a task of interest across multiple disciplines, especially for improving user experiences. Contrary to the common perception, it has been shown that emotions are not discrete entities but instead…

Computer Vision and Pattern Recognition · Computer Science 2024-04-24 Niklas Wagner , Felix Mätzler , Samed R. Vossberg , Helen Schneider , Svetlana Pavlitska , J. Marius Zöllner

Emotions play a key role in human communication and public presentations. Human emotions are usually expressed through multiple modalities. Therefore, exploring multimodal emotions and their coherence is of great value for understanding…

Computer Vision and Pattern Recognition · Computer Science 2019-10-10 Haipeng Zeng , Xingbo Wang , Aoyu Wu , Yong Wang , Quan Li , Alex Endert , Huamin Qu

Being spontaneous, micro-expressions are useful in the inference of a person's true emotions even if an attempt is made to conceal them. Due to their short duration and low intensity, the recognition of micro-expressions is a difficult task…

Computer Vision and Pattern Recognition · Computer Science 2022-11-24 Liangfei Zhang , Xiaopeng Hong , Ognjen Arandjelovic , Guoying Zhao

Accurately analyzing spontaneous, unconscious micro-expressions is crucial for revealing true human emotions, but this task remains challenging in wild scenarios, such as natural conversation. Existing research largely relies on datasets…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Yigui Feng , Qinglin Wang , Yang Liu , Ke Liu , Haotian Mo , Enhao Huang , Gencheng Liu , Mingzhe Liu , Jie Liu

Micro-expression can reflect people's real emotions. Recognizing micro-expressions is difficult because they are small motions and have a short duration. As the research is deepening into micro-expression recognition, many effective…

Computer Vision and Pattern Recognition · Computer Science 2021-02-17 Jinsheng Wei , Guanming Lu , Jingjie Yan

One of the symptoms of Parkinson's disease (PD) is hypomimia or reduced facial expressions. In this paper, we present a digital biomarker for PD that utilizes the study of micro-expressions. We analyzed the facial action units (AU) from…

Human-Computer Interaction · Computer Science 2021-09-06 Mohammad Rafayet Ali , Taylor Myers , Ellen Wagner , Harshil Ratnu , E. Ray Dorsey , Ehsan Hoque

Accurate emotion recognition is pivotal for nuanced and engaging human-computer interactions, yet remains difficult to achieve, especially in dynamic, conversation-like settings. In this study, we showcase how integrating eye-tracking data,…

Human-Computer Interaction · Computer Science 2025-11-03 Meisam Jamshidi Seikavandi , Jostein Fimland , Maria Barrett , Paolo Burelli

Brief fragments of sleep shorter than 15 s are defined as microsleep episodes (MSEs), often subjectively perceived as sleepiness. Their main characteristic is a slowing in frequency in the electroencephalogram (EEG), similar to stage N1…

Micro-action is an imperceptible non-verbal behaviour characterised by low-intensity movement. It offers insights into the feelings and intentions of individuals and is important for human-oriented applications such as emotion recognition…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Dan Guo , Kun Li , Bin Hu , Yan Zhang , Meng Wang

Existing 3D facial emotion modeling have been constrained by limited emotion classes and insufficient datasets. This paper introduces "Emo3D", an extensive "Text-Image-Expression dataset" spanning a wide spectrum of human emotions, each…

Computer Vision and Pattern Recognition · Computer Science 2024-10-04 Mahshid Dehghani , Amirahmad Shafiee , Ali Shafiei , Neda Fallah , Farahmand Alizadeh , Mohammad Mehdi Gholinejad , Hamid Behroozi , Jafar Habibi , Ehsaneddin Asgari

Micro-expression (ME) recognition plays a crucial role in a wide range of applications, particularly in public security and psychotherapy. Recently, traditional methods rely excessively on machine learning design and the recognition rate is…

Computer Vision and Pattern Recognition · Computer Science 2020-11-11 Jinming Liu , Ke Li , Baolin Song , Li Zhao

Micro-expression recognition (MER) has drawn increasing attention in recent years due to its potential applications in intelligent medical and lie detection. However, the shortage of annotated data has been the major obstacle to further…

Computer Vision and Pattern Recognition · Computer Science 2024-06-05 Hanting Li , Hongjing Niu , Feng Zhao

There is an increasing consensus among re- searchers that making a computer emotionally intelligent with the ability to decode human affective states would allow a more meaningful and natural way of human-computer interactions (HCIs). One…

Human-Computer Interaction · Computer Science 2016-06-02 Maria S. Perez-Rosero , Behnaz Rezaei , Murat Akcakaya , Sarah Ostadabbas

As a fine-grained and local expression behavior measurement, facial action unit (FAU) analysis (e.g., detection and intensity estimation) has been documented for its time-consuming, labor-intensive, and error-prone annotation. Thus a…

Computer Vision and Pattern Recognition · Computer Science 2022-10-31 Bowen Ma , Rudong An , Wei Zhang , Yu Ding , Zeng Zhao , Rongsheng Zhang , Tangjie Lv , Changjie Fan , Zhipeng Hu

The automated detection of sexism in memes is a challenging task due to multimodal ambiguity, cultural nuance, and the use of humor to provide plausible deniability. Content-only models often fail to capture the complexity of human…

Human-Computer Interaction · Computer Science 2026-03-02 Iván Arcos , Paolo Rosso , Elena Gomis-Vicent

The relationship between muscle activity and resulting facial expressions is crucial for various fields, including psychology, medicine, and entertainment. The synchronous recording of facial mimicry and muscular activity via surface…

Computer Vision and Pattern Recognition · Computer Science 2025-03-13 Tim Büchner , Christoph Anders , Orlando Guntinas-Lichius , Joachim Denzler

Micro-expressions (MEs) are brief, involuntary facial movements that reveal genuine emotions, offering valuable insights for psychological assessment and criminal investigations. Despite significant progress in automatic ME recognition…

Human-Computer Interaction · Computer Science 2025-08-06 Xinglong Mao , Shifeng Liu , Sirui Zhao , Tong Xu , Hanchao Wang , Baozhi Jia , Enhong Chen

Vocal Bursts -- short, non-speech vocalizations that convey emotions, such as laughter, cries, sighs, moans, and groans -- are an often-overlooked aspect of speech emotion recognition, but an important aspect of human vocal communication.…

Sound · Computer Science 2023-04-07 Fred W. Buhl

We present a glasses type wearable device to detect emotions from a human face in an unobtrusive manner. The device is designed to gather multi channel responses from the user face naturally and continuously while the user is wearing it.…

Human-Computer Interaction · Computer Science 2024-10-30 Jangho Kwon , Laehyun Kim
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