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Human action recognition is an important application domain in computer vision. Its primary aim is to accurately describe human actions and their interactions from a previously unseen data sequence acquired by sensors. The ability to…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Hieu H. Pham , Louahdi Khoudour , Alain Crouzil , Pablo Zegers , Sergio A. Velastin

Relating animal behaviors to brain activity is a fundamental goal in neuroscience, with practical applications in building robust brain-machine interfaces. However, the domain gap between individuals is a major issue that prevents the…

Computer Vision and Pattern Recognition · Computer Science 2022-01-20 Semih Günel , Florian Aymanns , Sina Honari , Pavan Ramdya , Pascal Fua

Human action recognition is an important problem in computer vision. It has a wide range of applications in surveillance, human-computer interaction, augmented reality, video indexing, and retrieval. The varying pattern of spatio-temporal…

Computer Vision and Pattern Recognition · Computer Science 2020-09-03 Yogesh S Rawat , Shruti Vyas

Facial action units (AUs) are essential to decode human facial expressions. Researchers have focused on training AU detectors with a variety of features and classifiers. However, several issues remain. These are spatial representation,…

Computer Vision and Pattern Recognition · Computer Science 2016-08-03 Wen-Sheng Chu , Fernando De la Torre , Jeffrey F. Cohn

To have a robot actively supporting a human during a collaborative task, it is crucial that robots are able to identify the current action in order to predict the next one. Common approaches make use of high-level knowledge, such as object…

Robotics · Computer Science 2017-03-08 Markus Eich , Sareh Shirazi , Gordon Wyeth

In this article, we introduce a novel problem of audio-visual autism behavior recognition, which includes social behavior recognition, an essential aspect previously omitted in AI-assisted autism screening research. We define the task at…

Action recognition is a critical task for social robots to meaningfully engage with their environment. 3D human skeleton-based action recognition is an attractive research area in recent years. Although, the existing approaches are good at…

Computer Vision and Pattern Recognition · Computer Science 2021-01-01 Hui Feng , Shanshan Wang , Shuzhi Sam Ge

Training on diverse, internet-scale data is a key factor in the success of recent large foundation models. Yet, using the same recipe for building embodied agents has faced noticeable difficulties. Despite the availability of many…

Despite the rapid progress, existing works on action understanding focus strictly on one type of action agent, which we call actor---a human adult, ignoring the diversity of actions performed by other actors. To overcome this narrow…

Computer Vision and Pattern Recognition · Computer Science 2017-05-01 Chenliang Xu , Caiming Xiong , Jason J. Corso

Currently, video behavior recognition is one of the most foundational tasks of computer vision. The 2D neural networks of deep learning are built for recognizing pixel-level information such as images with RGB, RGB-D, or optical flow…

Computer Vision and Pattern Recognition · Computer Science 2023-05-26 Zihan Wang , Yang Yang , Zhi Liu , Yifan Zheng

Human doing actions will result in WiFi distortion, which is widely explored for action recognition, such as the elderly fallen detection, hand sign language recognition, and keystroke estimation. As our best survey, past work recognizes…

Signal Processing · Electrical Eng. & Systems 2019-04-29 Fei Wang , Yunpeng Song , Jimuyang Zhang , Jinsong Han , Dong Huang

Human activity recognition (HAR) based on multimodal sensors has become a rapidly growing branch of biometric recognition and artificial intelligence. However, how to fully mine multimodal time series data and effectively learn accurate…

Computer Vision and Pattern Recognition · Computer Science 2022-05-25 Jialiang Wang , Haotian Wei , Yi Wang , Shu Yang , Chi Li

Understanding animals' behaviors is significant for a wide range of applications. However, existing animal behavior datasets have limitations in multiple aspects, including limited numbers of animal classes, data samples and provided tasks,…

Computer Vision and Pattern Recognition · Computer Science 2022-06-06 Xun Long Ng , Kian Eng Ong , Qichen Zheng , Yun Ni , Si Yong Yeo , Jun Liu

Derived from rapid advances in computer vision and machine learning, video analysis tasks have been moving from inferring the present state to predicting the future state. Vision-based action recognition and prediction from videos are such…

Computer Vision and Pattern Recognition · Computer Science 2022-02-15 Yu Kong , Yun Fu

Agents for computer use (ACUs) are an emerging class of systems capable of executing complex tasks on digital devices -- such as desktops, mobile phones, and web platforms -- given instructions in natural language. These agents can automate…

Machine learning and computer vision methods have a major impact on the study of natural animal behavior, as they enable the (semi-)automatic analysis of vast amounts of video data. Mice are the standard mammalian model system in most…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Patrik Reiske , Marcus N. Boon , Niek Andresen , Sole Traverso , Katharina Hohlbaum , Lars Lewejohann , Christa Thöne-Reineke , Olaf Hellwich , Henning Sprekeler

Action parsing in videos with complex scenes is an interesting but challenging task in computer vision. In this paper, we propose a generic 3D convolutional neural network in a multi-task learning manner for effective Deep Action Parsing…

Computer Vision and Pattern Recognition · Computer Science 2016-02-11 Li Liu , Yi Zhou , Ling Shao

Automatic human action recognition is indispensable for almost artificial intelligent systems such as video surveillance, human-computer interfaces, video retrieval, etc. Despite a lot of progress, recognizing actions in an unknown video is…

Computer Vision and Pattern Recognition · Computer Science 2018-03-22 Huy-Hieu Pham , Louahdi Khoudour , Alain Crouzil , Pablo Zegers , Sergio A. Velastin

Human Action Recognition (HAR) is a very crucial task in computer vision. It helps to carry out a series of downstream tasks, like understanding human behaviors. Due to the complexity of human behaviors, many highly valuable behaviors are…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Hongwu Li , Zhenliang Zhang , Wei Wang

Facial Action Units (AUs) represent a set of facial muscular activities and various combinations of AUs can represent a wide range of emotions. AU recognition is often used in many applications, including marketing, healthcare, education,…

Computer Vision and Pattern Recognition · Computer Science 2021-07-09 Junya Saito , Xiaoyu Mi , Akiyoshi Uchida , Sachihiro Youoku , Takahisa Yamamoto , Kentaro Murase , Osafumi Nakayama