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Action recognition is a fundamental problem in computer vision with a lot of potential applications such as video surveillance, human computer interaction, and robot learning. Given pre-segmented videos, the task is to recognize actions…

Computer Vision and Pattern Recognition · Computer Science 2017-06-28 Ahsan Iqbal , Alexander Richard , Hilde Kuehne , Juergen Gall

Radio-frequency (RF)-based human activity recognition (HAR) provides a contactless and privacy-preserving solution for monitoring human behavior in applications such as astronaut extravehicular activity monitoring, human-autonomy…

Signal Processing · Electrical Eng. & Systems 2025-08-07 Junshuo Liu , Xin Shi , Yunchuan Zhang , Yinhao Ge , Robert C. Qiu

Formation control of wheeled mobile robots (WMRs) has been extensively studied due to its broad applications in fields such as logistics transportation, environmental monitoring, and search and rescue. However, most existing works mainly…

Robotics · Computer Science 2026-05-19 Jianghong Dong , Yifeng Zhang , Jiawei Wang , Mengchi Cai , Keqiang Li , Guillaume Sartoretti

Cross view action recognition (CVAR) seeks to recognize a human action when observed from a previously unseen viewpoint. This is a challenging problem since the appearance of an action changes significantly with the viewpoint. Applications…

Computer Vision and Pattern Recognition · Computer Science 2023-05-04 Yuexi Zhang , Dan Luo , Balaji Sundareshan , Octavia Camps , Mario Sznaier

Pedestrian Attribute Recognition (PAR) is a challenging task in intelligent video surveillance. Two key challenges in PAR include complex alignment relations between images and attributes, and imbalanced data distribution. Existing…

Computer Vision and Pattern Recognition · Computer Science 2022-05-30 Zhong Ji , Zhenfei Hu , Yaodong Wang , Shengjia Li

Group activity recognition in video is a complex task due to the need for a model to recognise the actions of all individuals in the video and their complex interactions. Recent studies propose that optimal performance is achieved by…

Computer Vision and Pattern Recognition · Computer Science 2024-01-09 Haritha Thilakarathne , Aiden Nibali , Zhen He , Stuart Morgan

Robotics has long been a field riddled with complex systems architectures whose modules and connections, whether traditional or learning-based, require significant human expertise and prior knowledge. Inspired by large pre-trained language…

Robotics · Computer Science 2022-09-27 Rogerio Bonatti , Sai Vemprala , Shuang Ma , Felipe Frujeri , Shuhang Chen , Ashish Kapoor

Human action recognition (HAR) in videos is one of the core tasks of video understanding. Based on video sequences, the goal is to recognize actions performed by humans. While HAR has received much attention in the visible spectrum, action…

Computer Vision and Pattern Recognition · Computer Science 2022-04-20 Soufiane Lamghari , Guillaume-Alexandre Bilodeau , Nicolas Saunier

Video understanding is fundamental to tasks such as action recognition, video reasoning, and robotic control. Early video understanding methods based on large vision-language models (LVLMs) typically adopt a single-pass reasoning paradigm…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Yiyang Zhou , Yangfan He , Yaofeng Su , Siwei Han , Joel Jang , Gedas Bertasius , Mohit Bansal , Huaxiu Yao

Group activity recognition is the task of understanding the activity conducted by a group of people as a whole in a multi-person video. Existing models for this task are often impractical in that they demand ground-truth bounding box labels…

Computer Vision and Pattern Recognition · Computer Science 2022-04-06 Dongkeun Kim , Jinsung Lee , Minsu Cho , Suha Kwak

Efficiently modeling spatial-temporal information in videos is crucial for action recognition. To achieve this goal, state-of-the-art methods typically employ the convolution operator and the dense interaction modules such as non-local…

Computer Vision and Pattern Recognition · Computer Science 2022-08-10 Yuan Tian , Yichao Yan , Guangtao Zhai , Guodong Guo , Zhiyong Gao

Group activity detection (GAD) is the task of identifying members of each group and classifying the activity of the group at the same time in a video. While GAD has been studied recently, there is still much room for improvement in both…

Computer Vision and Pattern Recognition · Computer Science 2024-07-26 Dongkeun Kim , Youngkil Song , Minsu Cho , Suha Kwak

Human action recognition and motion generation are two active research problems in human-centric computer vision, both aiming to align motion with textual semantics. However, most existing works study these two problems separately, without…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Jidong Kuang , Hongsong Wang , Jie Gui

In recent years, video action recognition, as a fundamental task in the field of video understanding, has been deeply explored by numerous researchers.Most traditional video action recognition methods typically involve converting videos…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Junlin Chen , Chengcheng Xu , Yangfan Xu , Jian Yang , Jun Li , Zhiping Shi

Emerging Internet of Things (IoT) and mobile computing applications are expected to support latency-sensitive deep neural network (DNN) workloads. To realize this vision, the Internet is evolving towards an edge-computing architecture,…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Anurag Ghosh , Srinivasan Iyengar , Stephen Lee , Anuj Rathore , Venkat N Padmanabhan

Repetitive action counting quantifies the frequency of specific actions performed by individuals. However, existing action-counting datasets have limited action diversity, potentially hampering model performance on unseen actions. To…

Computer Vision and Pattern Recognition · Computer Science 2024-06-19 Jiada Lu , WeiWei Zhou , Xiang Qian , Dongze Lian , Yanyu Xu , Weifeng Wang , Lina Cao , Shenghua Gao

Video world models have achieved strong visual realism, but this does not ensure that their dynamics are truly governed by actions. In this work, we argue that action faithfulness should be understood through the compositional structure of…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Zijie Wang , Wei Zhang , Weiming Zhang , Fanqi Zhang , Xiao Tan , Yipeng Qin , Guanbin Li

Skeletal Action recognition from an egocentric view is important for applications such as interfaces in AR/VR glasses and human-robot interaction, where the device has limited resources. Most of the existing skeletal action recognition…

Computer Vision and Pattern Recognition · Computer Science 2023-09-20 Junan Lin , Zhichao Sun , Enjie Cao , Taein Kwon , Mahdi Rad , Marc Pollefeys

We present a unified framework for understanding human social behaviors in raw image sequences. Our model jointly detects multiple individuals, infers their social actions, and estimates the collective actions with a single feed-forward…

Computer Vision and Pattern Recognition · Computer Science 2016-11-29 Timur Bagautdinov , Alexandre Alahi , François Fleuret , Pascal Fua , Silvio Savarese

The task of Group Activity Recognition (GAR) aims to predict the activity category of the group by learning the actor spatial-temporal interaction relation in the group. Therefore, an effective actor relation learning method is crucial for…

Computer Vision and Pattern Recognition · Computer Science 2023-04-19 Guoliang Xu , Jianqin Yin