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Related papers: Less is More: Micro-expression Recognition from Vi…

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When a person attempts to conceal an emotion, the genuine emotion is manifest as a micro-expression. Exploration of automatic facial micro-expression recognition systems is relatively new in the computer vision domain. This is due to the…

Computer Vision and Pattern Recognition · Computer Science 2018-05-23 Sze-Teng Liong , Y. S. Gan , Wei-Chuen Yau , Yen-Chang Huang , Tan Lit Ken

Facial micro-expressions, characterized by their subtle and brief nature, are valuable indicators of genuine emotions. Despite their significance in psychology, security, and behavioral analysis, micro-expression recognition remains…

Computer Vision and Pattern Recognition · Computer Science 2025-10-16 Luu Tu Nguyen , Vu Tram Anh Khuong , Thi Bich Phuong Man , Thi Duyen Ngo , Thanh Ha Le

This paper targets to explore the inter-subject variations eliminated facial expression representation in the compressed video domain. Most of the previous methods process the RGB images of a sequence, while the off-the-shelf and valuable…

Computer Vision and Pattern Recognition · Computer Science 2021-01-11 Xiaofeng Liu , Linghao Jin , Xu Han , Jun Lu , Jane You , Lingsheng Kong

Owing to the development and advancement of artificial intelligence, numerous works were established in the human facial expression recognition system. Meanwhile, the detection and classification of micro-expressions are attracting…

Computer Vision and Pattern Recognition · Computer Science 2019-04-04 Sze-Teng Liong , Y. S. Gan , Danna Zheng , Shu-Meng Lic , Hao-Xuan Xua , Han-Zhe Zhang , Ran-Ke Lyu , Kun-Hong Liu

Micro-expression recognition is vital for affective computing but remains challenging due to the extremely brief, low-intensity facial motions involved and the high-dimensional nature of 4D mesh data. To address these challenges, we…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Luu Tu Nguyen , Thi Bich Phuong Man , Vu Tram Anh Khuong , Thanh Ha Le , Thi Duyen Ngo

Micro-expressions (MEs) are spontaneous, unconscious facial expressions that have promising applications in various fields such as psychotherapy and national security. Thus, micro-expression recognition (MER) has attracted more and more…

Computer Vision and Pattern Recognition · Computer Science 2024-07-11 Ruolin Li , Lu Wang , Tingting Yang , Lisheng Xu , Bingyang Ma , Yongchun Li , Hongchao Wei

The automatic recognition of micro-expression has been boosted ever since the successful introduction of deep learning approaches. As researchers working on such topics are moving to learn from the nature of micro-expression, the practice…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Min Peng , Chongyang Wang , Tao Bi , Tong Chen , XiangDong Zhou , Yu shi

Unlike prevalent facial expressions, micro expressions have subtle, involuntary muscle movements which are short-lived in nature. These minute muscle movements reflect true emotions of a person. Due to the short duration and low intensity,…

Computer Vision and Pattern Recognition · Computer Science 2020-01-08 Monu Verma , Santosh Kumar Vipparthi , Girdhari Singh , Subrahmanyam Murala

Facial micro-expressions are brief, involuntary facial movements that reveal hidden emotions. Most Micro-Expression Recognition (MER) methods that rely on optical flow typically focus on the onset-to-apex phase, neglecting the…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Vu Tram Anh Khuong , Thi Bich Phuong Man , Luu Tu Nguyen , Thanh Ha Le , Thi Duyen Ngo

As a spontaneous expression of emotion on face, micro-expression reveals the underlying emotion that cannot be controlled by human. In micro-expression, facial movement is transient and sparsely localized through time. However, the existing…

Computer Vision and Pattern Recognition · Computer Science 2021-03-16 Min Peng , Chongyang Wang , Yuan Gao , Tao Bi , Tong Chen , Yu Shi , Xiang-Dong Zhou

Facial expression spotting is the preliminary step for micro- and macro-expression analysis. The task of reliably spotting such expressions in video sequences is currently unsolved. The current best systems depend upon optical flow methods…

Computer Vision and Pattern Recognition · Computer Science 2022-05-30 Chuin Hong Yap , Moi Hoon Yap , Adrian K. Davison , Connah Kendrick , Jingting Li , Sujing Wang , Ryan Cunningham

Facial expression is a standout amongst the most imperative features of human emotion recognition. For demonstrating the emotional states facial expressions are utilized by the people. In any case, recognition of facial expressions has…

Computer Vision and Pattern Recognition · Computer Science 2020-09-30 S. D. Lalitha , K. K. Thyagharajan

Facial expressions are one of the most effective ways for non-verbal communications, which can be expressed as the Micro-Expression (ME) in the high-stake situations. The MEs are involuntary, rapid, and, subtle, and they can reveal real…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Vida Esmaeili , Mahmood Mohassel Feghhi , Seyed Omid Shahdi

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

Training an effective video action recognition model poses significant computational challenges, particularly under limited resource budgets. Current methods primarily aim to either reduce model size or utilize pre-trained models, limiting…

Computer Vision and Pattern Recognition · Computer Science 2023-07-28 Harry Cheng , Yangyang Guo , Liqiang Nie , Zhiyong Cheng , Mohan Kankanhalli

Micro-expressions are brief spontaneous facial expressions that appear on a face when a person conceals an emotion, making them different to normal facial expressions in subtlety and duration. Currently, emotion classes within the CASME II…

Computer Vision and Pattern Recognition · Computer Science 2017-12-05 Adrian K. Davison , Walied Merghani , Moi Hoon Yap

Facial micro-expressions are subtle and involuntary expressions that can reveal concealed emotions. Micro-expressions are an invaluable source of information in application domains such as lie detection, mental health, sentiment analysis…

Computer Vision and Pattern Recognition · Computer Science 2019-03-27 Michiel Verburg , Vlado Menkovski

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

Micro-expressions, characterized by transience and subtlety, pose challenges to existing optical flow-based recognition methods. To address this, this paper proposes a dual-branch micro-expression feature extraction network integrated with…

Computer Vision and Pattern Recognition · Computer Science 2026-03-02 Mingjie Zhang , Bo Li , Wanting Liu , Hongyan Cui , Yue Li , Qingwen Li , Hong Li , Ge Gao

In the latest social networks, more and more people prefer to express their emotions in videos through text, speech, and rich facial expressions. Multimodal video emotion analysis techniques can help understand users' inner world…

Computer Vision and Pattern Recognition · Computer Science 2022-09-22 Qinglan Wei , Xuling Huang , Yuan Zhang
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