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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-expression recognition (MER) presents a significant challenge due to the transient and subtle nature of the motion changes involved. In recent years, deep learning methods based on attention mechanisms have made some breakthroughs in…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Lijun Zhang , Yifan Zhang , Weicheng Tang , Xinzhi Sun , Xiaomeng Wang , Zhanshan Li

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

Correctly perceiving micro-expression is difficult since micro-expression is an involuntary, repressed, and subtle facial expression, and efficiently revealing the subtle movement changes and capturing the significant segments in a…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Jiateng Liu , Wenming Zheng , Yuan Zong

Multi-modal Emotion Recognition in Conversation (MERC) has received considerable attention in various fields, e.g., human-computer interaction and recommendation systems. Most existing works perform feature disentanglement and fusion to…

Computation and Language · Computer Science 2024-05-06 Yuntao Shou , Tao Meng , Fuchen Zhang , Nan Yin , Keqin 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 2026-03-11 Xinqi Fan , Jingting Li , John See , Moi Hoon Yap , Su-Jing Wang , Adrian K. Davison

Previous research on lightweight models has primarily focused on CNNs and Transformer-based designs. CNNs, with their local receptive fields, struggle to capture long-range dependencies, while Transformers, despite their global modeling…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Haoyang He , Jiangning Zhang , Yuxuan Cai , Hongxu Chen , Xiaobin Hu , Zhenye Gan , Yabiao Wang , Chengjie Wang , Yunsheng Wu , Lei Xie

Multimodal emotion recognition (MER) is a fundamental complex research problem due to the uncertainty of human emotional expression and the heterogeneity gap between different modalities. Audio and text modalities are particularly important…

Audio and Speech Processing · Electrical Eng. & Systems 2023-02-07 Jiachen Luo , Huy Phan , Joshua Reiss

Micro-expressions (MEs) are brief and involuntary facial expressions that occur when people are trying to hide their true feelings or conceal their emotions. Based on psychology research, MEs play an important role in understanding genuine…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Thuong-Khanh Tran , Quang-Nhat Vo , Xiaopeng Hong , Xiaobai Li , Guoying Zhao

Micro-expressions (MEs) are brief, low-intensity, often localized facial expressions. They could reveal genuine emotions individuals may attempt to conceal, valuable in contexts like criminal interrogation and psychological counseling.…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Jingting Li , Yu Qian , Lin Zhao , Su-Jing Wang

Speech Emotion Recognition (SER) plays a critical role in enhancing user experience within human-computer interaction. However, existing methods are overwhelmed by temporal domain analysis, overlooking the valuable envelope structures of…

Sound · Computer Science 2024-12-24 Jiaqi Zhao , Fei Wang , Kun Li , Yanyan Wei , Shengeng Tang , Shu Zhao , Xiao Sun

In recent years, deep learning has shown near-expert performance in segmenting complex medical tissues and tumors. However, existing models are often task-specific, with performance varying across modalities and anatomical regions.…

Computer Vision and Pattern Recognition · Computer Science 2025-10-30 T-Mai Bui , Fares Bougourzi , Fadi Dornaika , Vinh Truong Hoang

Facial Micro-Expressions (MEs) are spontaneous, involuntary facial movements when a person experiences an emotion but deliberately or unconsciously attempts to conceal his or her genuine emotions. Recently, ME recognition has attracted…

Computer Vision and Pattern Recognition · Computer Science 2019-09-18 Chengyu Guo , Jingyun Liang , Geng Zhan , Zhong Liu , Matti Pietikäinen , Li Liu

EEG-based emotion recognition struggles with capturing multi-scale spatiotemporal dynamics and ensuring computational efficiency for real-time applications. Existing methods often oversimplify temporal granularity and spatial hierarchies,…

Signal Processing · Electrical Eng. & Systems 2025-07-23 Hanwen Liu , Yifeng Gong , Zuwei Yan , Zeheng Zhuang , Jiaxuan Lu

Multimodal remote sensing object detection aims to achieve more accurate and robust perception under challenging conditions by fusing complementary information from different modalities. However, existing approaches that rely on…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Jianhong Han , Yupei Wang , Yuan Zhang , Liang Chen

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

Precise alignment of multi-modal images with inherent feature discrepancies poses a pivotal challenge in deformable image registration. Traditional learning-based approaches often consider registration networks as black boxes without…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Kaiang Wen , Bin Xie , Bin Duan , Yan Yan

Facial affective behavior analysis (FABA) is crucial for understanding human mental states from images. However, traditional approaches primarily deploy models to discriminate among discrete emotion categories, and lack the fine granularity…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Yifan Li , Anh Dao , Wentao Bao , Zhen Tan , Tianlong Chen , Huan Liu , Yu Kong

State-of-the-art video object detection methods maintain a memory structure, either a sliding window or a memory queue, to enhance the current frame using attention mechanisms. However, we argue that these memory structures are not…

Computer Vision and Pattern Recognition · Computer Science 2024-02-02 Guanxiong Sun , Yang Hua , Guosheng Hu , Neil Robertson

Micro-gesture recognition (MGR) targets the identification of subtle and fine-grained human motions and requires accurate modeling of both long-range and local spatiotemporal dependencies. While CNNs are effective at capturing local…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Deng Li , Jun Shao , Bohao Xing , Rong Gao , Bihan Wen , Heikki Kälviäinen , Xin Liu