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Facial Expression Recognition is a vital research topic in most fields ranging from artificial intelligence and gaming to Human-Computer Interaction (HCI) and Psychology. This paper proposes a hybrid model for Facial Expression recognition,…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Ozioma Collins Oguine , Kanyifeechukwu Jane Oguine , Hashim Ibrahim Bisallah , Daniel Ofuani

Dynamic facial expression recognition (DFER) in the wild is an extremely challenging task, due to a large number of noisy frames in the video sequences. Previous works focus on extracting more discriminative features, but ignore…

Computer Vision and Pattern Recognition · Computer Science 2022-06-13 Hanting Li , Mingzhe Sui , Zhaoqing Zhu , Feng zhao

With the transition of facial expression recognition (FER) from laboratory-controlled to challenging in-the-wild conditions and the recent success of deep learning techniques in various fields, deep neural networks have increasingly been…

Computer Vision and Pattern Recognition · Computer Science 2020-04-20 Shan Li , Weihong Deng

Micro-expression recognition (MER) draws intensive research interest as micro-expressions (MEs) can infer genuine emotions. Prior information can guide the model to learn discriminative ME features effectively. However, most works focus on…

Computer Vision and Pattern Recognition · Computer Science 2023-03-06 Jinsheng Wei , Haoyu Chen , Guanming Lu , Jingjie Yan , Yue Xie , Guoying Zhao

In this paper, we present a novel approach to automatic 3D Facial Expression Recognition (FER) based on deep representation of facial 3D geometric and 2D photometric attributes. A 3D face is firstly represented by its geometric and…

Computer Vision and Pattern Recognition · Computer Science 2015-11-11 Huibin Li , Jian Sun , Dong Wang , Zongben Xu , Liming Chen

Micro-Expression (ME) is the spontaneous, involuntary movement of a face that can reveal the true feeling. Recently, increasing researches have paid attention to this field combing deep learning techniques. Action units (AUs) are the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Ling Lo , Hong-Xia Xie , Hong-Han Shuai , Wen-Huang Cheng

Facial expressions play an important role in conveying the emotional states of human beings. Recently, deep learning approaches have been applied to image recognition field due to the discriminative power of Convolutional Neural Network…

Computer Vision and Pattern Recognition · Computer Science 2018-07-30 Yingruo Fan , Jacqueline C. K. Lam , Victor O. K. Li

Deepfake detection research has largely converged on deep learning approaches that, despite strong benchmark performance, offer limited insight into what distinguishes real from manipulated facial behavior. This study presents an…

Computer Vision and Pattern Recognition · Computer Science 2026-04-24 Timothy Joseph Murphy , Jennifer Cook , Hélio Clemente José Cuve

Micro-expression recognition plays a pivotal role in understanding hidden emotions and has applications across various fields. Traditional recognition methods assume access to all training data at once, but real-world scenarios involve…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Zhengqin Lai , Xiaopeng Hong , Yabin Wang , Xiaobai Li

Facial micro-expressions (MEs) are involuntary movements of the face that occur spontaneously when a person experiences an emotion but attempts to suppress or repress the facial expression, typically found in a high-stakes environment. In…

Computer Vision and Pattern Recognition · Computer Science 2025-10-16 Xinqi Fan , Jingting Li , John See , Moi Hoon Yap , Wen-Huang Cheng , Xiaobai Li , Xiaopeng Hong , Su-Jing Wang , Adrian K. Davision

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

We aim to construct a system that captures real-world facial images through the front camera on a laptop. The system is capable of processing/recognizing the captured image and predict a result in real-time. In this system, we exploit the…

Computer Vision and Pattern Recognition · Computer Science 2019-10-25 Ching-Da Wu , Li-Heng Chen

When emotions are repressed, an individual's true feelings may be revealed through micro-expressions. Consequently, micro-expressions are regarded as a genuine source of insight into an individual's authentic emotions. However, the…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Feng Liu , Bingyu Nan , Xuezhong Qian , Xiaolan Fu

Facial micro-expressions are sudden involuntary minute muscle movements which reveal true emotions that people try to conceal. Spotting a micro-expression and recognizing it is a major challenge owing to its short duration and intensity.…

Computer Vision and Pattern Recognition · Computer Science 2019-04-22 Sauradip Nag , Ayan Kumar Bhunia , Aishik Konwer , Partha Pratim Roy

Micro-expressions are rapid and involuntary facial expressions, which indicate the suppressed or concealed emotions. Recently, the research on automatic micro-expression (ME) spotting obtains increasing attention. ME spotting is a crucial…

Computer Vision and Pattern Recognition · Computer Science 2017-10-10 Xiaopeng Hong , Thuong-Khanh Tran , Guoying Zhao

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

Emotion recognition is involved in several real-world applications. With an increase in available modalities, automatic understanding of emotions is being performed more accurately. The success in Multimodal Emotion Recognition (MER),…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Riccardo Franceschini , Enrico Fini , Cigdem Beyan , Alessandro Conti , Federica Arrigoni , Elisa Ricci

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 expression perception in humans inherently relies on prior knowledge and contextual cues, contributing to efficient and flexible processing. For instance, multi-modal emotional context (such as voice color, affective text, body pose,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-05 Florian Blume , Runfeng Qu , Pia Bideau , Martin Maier , Rasha Abdel Rahman , Olaf Hellwich

Recently, the recognition task of spontaneous facial micro-expressions has attracted much attention with its various real-world applications. Plenty of handcrafted or learned features have been employed for a variety of classifiers and…

Computer Vision and Pattern Recognition · Computer Science 2019-01-16 Zhaoqiang Xia , Xiaopeng Hong , Xingyu Gao , Xiaoyi Feng , Guoying Zhao