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Related papers: Micro-Expression Recognition by Motion Feature Ext…

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Micro-expressions (MEs) are involuntary facial movements revealing people's hidden feelings in high-stake situations and have practical importance in medical treatment, national security, interrogations and many human-computer interaction…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Yante Li , Jinsheng Wei , Yang Liu , Janne Kauttonen , Guoying Zhao

Facial micro-expressions indicate brief and subtle facial movements that appear during emotional communication. In comparison to macro-expressions, micro-expressions are more challenging to be analyzed due to the short span of time and the…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Hong-Xia Xie , Ling Lo , Hong-Han Shuai , Wen-Huang Cheng

Unlike macro-expression, micro-expression does not follow a strictly consistent mapping rule between emotions and Action Units (AUs). As a result, some micro-expressions share identical AUs yet represent completely opposite emotional…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Chenxing Hu , Kun Xie , Qiguang Miao , Ruyi Liu , Quan Wang , Zongkai Yang

Facial micro-expressions (MEs) are involuntary facial motions revealing peoples real feelings and play an important role in the early intervention of mental illness, the national security, and many human-computer interaction systems.…

Computer Vision and Pattern Recognition · Computer Science 2022-08-22 Hanting Li , Mingzhe Sui , Zhaoqing Zhu , Feng Zhao

Micro-expressions (MEs) are rapid, involuntary facial expressions which reveal emotions that people do not intend to show. Studying MEs is valuable as recognizing them has many important applications, particularly in forensic science and…

Computer Vision and Pattern Recognition · Computer Science 2017-03-14 Xiaobai Li , Xiaopeng Hong , Antti Moilanen , Xiaohua Huang , Tomas Pfister , Guoying Zhao , Matti Pietikäinen

Micro-expressions are nonverbal facial expressions that reveal the covert emotions of individuals, making the micro-expression recognition task receive widespread attention. However, the micro-expression recognition task is challenging due…

Image and Video Processing · Electrical Eng. & Systems 2024-06-13 Ren Zhang , Jianqin Yin , Chao Qi , Zehao Wang , Zhicheng Zhang , Yonghao Dang

Facial micro-expression recognition (MER) is a challenging task, due to the transience, subtlety, and dynamics of micro-expressions (MEs). Most existing methods resort to hand-crafted features or deep networks, in which the former often…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Zhiwen Shao , Yifan Cheng , Fan Zhang , Xuehuai Shi , Canlin Li , Lizhuang Ma , Dit-yan Yeung

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

Micro-expressions (MEs) are brief, involuntary facial movements that reveal genuine emotions, typically lasting less than half a second. Recognizing these subtle expressions is critical for applications in psychology, security, and…

Computer Vision and Pattern Recognition · Computer Science 2025-10-20 Vu Tram Anh Khuong , Luu Tu Nguyen , Thanh Ha Le , Thi Duyen Ngo

Micro-expression recognition (MER) is valuable because micro-expressions (MEs) can reveal genuine emotions. Most works take image sequences as input and cannot effectively explore ME information because subtle ME-related motions are easily…

Computer Vision and Pattern Recognition · Computer Science 2023-03-06 Jinsheng Wei , Wei Peng , Guanming Lu , Yante Li , Jingjie Yan , Guoying Zhao

Despite recent interest and advances in facial micro-expression research, there is still plenty room for improvement in terms of micro-expression recognition. Conventional feature extraction approaches for micro-expression video consider…

Computer Vision and Pattern Recognition · Computer Science 2018-02-16 Sze-Teng Liong , John See , KokSheik Wong , Raphael C. -W. Phan

Unlike the conventional facial expressions, micro-expressions are involuntary and transient facial expressions capable of revealing the genuine emotions that people attempt to hide. Therefore, they can provide important information in a…

Computer Vision and Pattern Recognition · Computer Science 2022-02-17 Xianye Ben , Yi Ren , Junping Zhang , Su-Jing Wang , Kidiyo Kpalma , Weixiao Meng , Yong-Jin Liu

Micro-expressions recognition (MER) has essential application value in many fields, but the short duration and low intensity of micro-expressions (MEs) bring considerable challenges to MER. The current MER methods in deep learning mainly…

Computer Vision and Pattern Recognition · Computer Science 2025-08-20 Liangyu Fu , Xuecheng Wu , Danlei Huang , Xinyi Yin

Spotting facial micro-expression from videos finds various potential applications in fields including clinical diagnosis and interrogation, meanwhile this task is still difficult due to the limited scale of training data. To solve this…

Computer Vision and Pattern Recognition · Computer Science 2023-08-10 Yi Zhang , Youjun Zhao , Yuhang Wen , Zixuan Tang , Xinhua Xu , Mengyuan Liu

Micro-expressions are brief, involuntary facial movements that typically last less than half a second and often reveal genuine emotions. Accurately recognizing these subtle expressions is critical for applications in psychology, security,…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Vu Tram Anh Khuong , Luu Tu Nguyen , Thi Bich Phuong Man , Thanh Ha Le , Thi Duyen Ngo

As a critical psychological stress response, micro-expressions (MEs) are fleeting and subtle facial movements revealing genuine emotions. Automatic ME recognition (MER) holds valuable applications in fields such as criminal investigation…

Human-Computer Interaction · Computer Science 2025-05-12 Shifeng Liu , Xinglong Mao , Sirui Zhao , Peiming Li , Tong Xu , Enhong Chen

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

Micro-expressions (MEs) are involuntary movements revealing people's hidden feelings, which has attracted numerous interests for its objectivity in emotion detection. However, despite its wide applications in various scenarios,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-19 Jingyao Wang , Yunhan Tian , Yuxuan Yang , Xiaoxin Chen , Changwen Zheng , Wenwen Qiang

Micro-expressions (MEs) are involuntary, low-intensity, and short-duration facial expressions that often reveal an individual's genuine thoughts and emotions. Most existing ME analysis methods rely on window-level classification with fixed…

Computer Vision and Pattern Recognition · Computer Science 2025-08-27 Zizheng Guo , Bochao Zou , Yinuo Jia , Xiangyu Li , Huimin Ma

Facial micro-expression recognition (MER) is a challenging problem, due to transient and subtle micro-expression (ME) actions. Most existing methods depend on hand-crafted features, key frames like onset, apex, and offset frames, or deep…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Zhiwen Shao , Yifan Cheng , Feiran Li , Yong Zhou , Xuequan Lu , Yuan Xie , Lizhuang Ma
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