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Recently, there are increasing interests in inferring mirco-expression from facial image sequences. Due to subtle facial movement of micro-expressions, feature extraction has become an important and critical issue for spontaneous facial…

Computer Vision and Pattern Recognition · Computer Science 2016-08-09 Xiaohua Huang , Sujing Wang , Xin Liu , Guoying Zhao , Xiaoyi Feng , Matti Pietikainen

Pain management and severity detection are crucial for effective treatment, yet traditional self-reporting methods are subjective and may be unsuitable for non-verbal individuals (people with limited speaking skills). To address this…

Computer Vision and Pattern Recognition · Computer Science 2025-02-27 Aafaf Ridouan , Amine Bohi , Youssef Mourchid

Human communication is the vocal and non verbal signal to communicate with others. Human expression is a significant biometric object in picture and record databases of surveillance systems. Face appreciation has a serious role in biometric…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 P. Deivendran , P. Suresh Babu , G. Malathi , K. Anbazhagan , R. Senthil Kumar

Emotion recognition has become an important field of research in the human-computer interactions domain. The latest advancements in the field show that combining visual with audio information lead to better results if compared to the case…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Nicolae-Catalin Ristea , Liviu Cristian Dutu , Anamaria Radoi

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

We propose a deep convolutional neural network (CNN) for face detection leveraging on facial attributes based supervision. We observe a phenomenon that part detectors emerge within CNN trained to classify attributes from uncropped face…

Computer Vision and Pattern Recognition · Computer Science 2017-08-28 Shuo Yang , Ping Luo , Chen Change Loy , Xiaoou Tang

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

Micro-expressions are brief and subtle facial expressions that go on and off the face in a fraction of a second. This kind of facial expressions usually occurs in high stake situations and is considered to reflect a human's real intent.…

Computer Vision and Pattern Recognition · Computer Science 2020-05-14 Carlos Arango Duque , Olivier Alata , Rémi Emonet , Hubert Konik , Anne-Claire Legrand

The paper describes our proposed methodology for the seven basic expression classification track of Affective Behavior Analysis in-the-wild (ABAW) Competition 2021. In this task, facial expression recognition (FER) methods aim to classify…

Computer Vision and Pattern Recognition · Computer Science 2021-07-13 Shuyi Mao , Xinqi Fan , Xiaojiang Peng

Convolutional Neural Networks (CNN) have been regarded as a powerful class of models for image recognition problems. Nevertheless, it is not trivial when utilizing a CNN for learning spatio-temporal video representation. A few studies have…

Computer Vision and Pattern Recognition · Computer Science 2017-11-29 Zhaofan Qiu , Ting Yao , Tao Mei

With the powerfulness of convolution neural networks (CNN), CNN based face reconstruction has recently shown promising performance in reconstructing detailed face shape from 2D face images. The success of CNN-based methods relies on a large…

Computer Vision and Pattern Recognition · Computer Science 2018-05-16 Yudong Guo , Juyong Zhang , Jianfei Cai , Boyi Jiang , Jianmin Zheng

In recent years, a number of approaches based on 2D or 3D convolutional neural networks (CNN) have emerged for video action recognition, achieving state-of-the-art results on several large-scale benchmark datasets. In this paper, we carry…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Chun-Fu Chen , Rameswar Panda , Kandan Ramakrishnan , Rogerio Feris , John Cohn , Aude Oliva , Quanfu Fan

Effective extraction of temporal patterns is crucial for the recognition of temporally varying actions in video. We argue that the fixed-sized spatio-temporal convolution kernels used in convolutional neural networks (CNNs) can be improved…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Alexandros Stergiou , Ronald Poppe

We provide a new non-invasive, easy-to-scale for large amounts of subjects and a remotely accessible method for (hidden) emotion detection from videos of human faces. Our approach combines face manifold detection for accurate location of…

Computer Vision and Pattern Recognition · Computer Science 2022-11-02 Juni Kim , Zhikang Dong , Eric Guan , Judah Rosenthal , Shi Fu , Miriam Rafailovich , Pawel Polak

Speech emotion recognition is a challenging task and heavily depends on hand-engineered acoustic features, which are typically crafted to echo human perception of speech signals. However, a filter bank that is designed from perceptual…

Sound · Computer Science 2020-07-29 Siddique Latif , Rajib Rana , Sara Khalifa , Raja Jurdak , Julien Epps

Automatic affect recognition is a challenging task due to the various modalities emotions can be expressed with. Applications can be found in many domains including multimedia retrieval and human computer interaction. In recent years, deep…

Computer Vision and Pattern Recognition · Computer Science 2018-02-14 Panagiotis Tzirakis , George Trigeorgis , Mihalis A. Nicolaou , Björn Schuller , Stefanos Zafeiriou

We present a real-time deep learning framework for video-based facial performance capture -- the dense 3D tracking of an actor's face given a monocular video. Our pipeline begins with accurately capturing a subject using a high-end…

Computer Vision and Pattern Recognition · Computer Science 2017-06-05 Samuli Laine , Tero Karras , Timo Aila , Antti Herva , Shunsuke Saito , Ronald Yu , Hao Li , Jaakko Lehtinen

This thesis focuses on video understanding for human action and interaction recognition. We start by identifying the main challenges related to action recognition from videos and review how they have been addressed by current methods. Based…

Computer Vision and Pattern Recognition · Computer Science 2021-10-06 Alexandros Stergiou

Face images appeared in multimedia applications, e.g., social networks and digital entertainment, usually exhibit dramatic pose, illumination, and expression variations, resulting in considerable performance degradation for traditional face…

Computer Vision and Pattern Recognition · Computer Science 2016-11-17 Changxing Ding , Dacheng Tao

Fast and robust three-dimensional reconstruction of facial geometric structure from a single image is a challenging task with numerous applications. Here, we introduce a learning-based approach for reconstructing a three-dimensional face…

Computer Vision and Pattern Recognition · Computer Science 2016-09-27 Elad Richardson , Matan Sela , Ron Kimmel