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Action recognition is an important component to improve autonomy of physical rehabilitation devices, such as wearable robotic exoskeletons. Existing human action recognition algorithms focus on adult applications rather than pediatric ones.…

Computer Vision and Pattern Recognition · Computer Science 2022-10-13 Amel Dechemi , Vikarn Bhakri , Ipsita Sahin , Arjun Modi , Julya Mestas , Pamodya Peiris , Dannya Enriquez Barrundia , Elena Kokkoni , Konstantinos Karydis

Automated human emotion recognition from facial expressions is a well-studied problem and still remains a very challenging task. Some efficient or accurate deep learning models have been presented in the literature. However, it is quite…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Monu Verma , Murari Mandal , Satish Kumar Reddy , Yashwanth Reddy Meedimale , Santosh Kumar Vipparthi

It is challenging for artificial intelligence systems to achieve accurate video recognition under the scenario of low computation costs. Adaptive inference based efficient video recognition methods typically preview videos and focus on…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Boyang Xia , Wenhao Wu , Haoran Wang , Rui Su , Dongliang He , Haosen Yang , Xiaoran Fan , Wanli Ouyang

Modern deep learning approaches have achieved groundbreaking performance in modeling and classifying sequential data. Specifically, attention networks constitute the state-of-the-art paradigm for capturing long temporal dynamics. This paper…

Computation and Language · Computer Science 2019-05-07 Harris Partaourides , Kostantinos Papadamou , Nicolas Kourtellis , Ilias Leontiadis , Sotirios Chatzis

Current state-of-the-art methods solve spatiotemporal action localisation by extending 2D anchors to 3D-cuboid proposals on stacks of frames, to generate sets of temporally connected bounding boxes called \textit{action micro-tubes}.…

Image and Video Processing · Electrical Eng. & Systems 2018-08-02 Gurkirt Singh , Suman Saha , Fabio Cuzzolin

Facial expression recognition is an important research direction in the field of artificial intelligence. Although new breakthroughs have been made in recent years, the uneven distribution of datasets and the similarity between different…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Bingyu Nan , Feng Liu , Xuezhong Qian , Wei Song

Biometric systems based on Machine learning and Deep learning are being extensively used as authentication mechanisms in resource-constrained environments like smartphones and other small computing devices. These AI-powered facial…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Mohit Raghavendra , Pravan Omprakash , B R Mukesh , Sowmya Kamath

We introduce a novel self-supervised learning approach to learn representations of videos that are responsive to changes in the motion dynamics. Our representations can be learned from data without human annotation and provide a substantial…

Computer Vision and Pattern Recognition · Computer Science 2020-07-22 Simon Jenni , Givi Meishvili , Paolo Favaro

Human emotion recognition holds a pivotal role in facilitating seamless human-computer interaction. This paper delineates our methodology in tackling the Valence-Arousal (VA) Estimation Challenge, Expression (Expr) Classification Challenge,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Weiwei Zhou , Jiada Lu , Chenkun Ling , Weifeng Wang , Shaowei Liu

Affective computing is an important branch of artificial intelligence, and with the rapid development of brain computer interface technology, emotion recognition based on EEG signals has received broad attention. It is still a great…

Signal Processing · Electrical Eng. & Systems 2022-12-26 Yongling Xu , Yang Du , Jing Zou , Tianying Zhou , Lushan Xiao , Li Liu , Pengcheng

Action recognition is currently one of the top-challenging research fields in computer vision. Convolutional Neural Networks (CNNs) have significantly boosted its performance but rely on fixed-size spatio-temporal windows of analysis,…

Computer Vision and Pattern Recognition · Computer Science 2020-08-27 Alejandro López-Cifuentes , Marcos Escudero-Viñolo , Jesús Bescós

Data-driven modeling of human motions is ubiquitous in computer graphics and computer vision applications, such as synthesizing realistic motions or recognizing actions. Recent research has shown that such problems can be approached by…

Graphics · Computer Science 2019-08-21 He Wang , Edmond S. L. Ho , Hubert P. H. Shum , Zhanxing Zhu

Time series data in real-world scenarios contain a substantial amount of nonlinear information, which significantly interferes with the training process of models, leading to decreased prediction performance. Therefore, during the time…

Machine Learning · Computer Science 2024-06-05 Dandan Zhang , Zhiqiang Zhang , Nanguang Chen , Yun Wang

Medical event prediction (MEP) is a fundamental task in the medical domain, which needs to predict medical events, including medications, diagnosis codes, laboratory tests, procedures, outcomes, and so on, according to historical medical…

Machine Learning · Computer Science 2022-05-02 Sicen Liu , Xiaolong Wang , Yang Xiang , Hui Xu , Hui Wang , Buzhou Tang

Time series prediction is an important problem in machine learning. Previous methods for time series prediction did not involve additional information. With a lot of dynamic knowledge graphs available, we can use this additional information…

Machine Learning · Computer Science 2020-07-14 Sankalp Garg , Navodita Sharma , Woojeong Jin , Xiang Ren

Video prediction has been considered a difficult problem because the video contains not only high-dimensional spatial information but also complex temporal information. Video prediction can be performed by finding features in recent frames,…

Computer Vision and Pattern Recognition · Computer Science 2019-07-16 Jungbeom Lee , Jangho Lee , Sungmin Lee , Sungroh Yoon

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

Audio-visual emotion recognition (AVER) methods typically fuse utterance-level features, and even frame-level attention models seldom address the frame-rate mismatch across modalities. In this paper, we propose a Transformer-based framework…

Multimedia · Computer Science 2026-03-13 Inyong Koo , yeeun Seong , Minseok Son , Jaehyuk Jang , Changick Kim

The video-based facial expression recognition aims to classify a given video into several basic emotions. How to integrate facial features of individual frames is crucial for this task. In this paper, we propose the Frame Attention Networks…

Computer Vision and Pattern Recognition · Computer Science 2019-09-13 Debin Meng , Xiaojiang Peng , Kai Wang , Yu Qiao

Deep convolutional networks have achieved great success for visual recognition in still images. However, for action recognition in videos, the advantage over traditional methods is not so evident. This paper aims to discover the principles…

Computer Vision and Pattern Recognition · Computer Science 2016-08-03 Limin Wang , Yuanjun Xiong , Zhe Wang , Yu Qiao , Dahua Lin , Xiaoou Tang , Luc Van Gool