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Multimodal fusion frameworks for Human Action Recognition (HAR) using depth and inertial sensor data have been proposed over the years. In most of the existing works, fusion is performed at a single level (feature level or decision level),…

Machine Learning · Computer Science 2019-10-28 Zeeshan Ahmad , Naimul Khan

Learning the spatial-temporal representation of motion information is crucial to human action recognition. Nevertheless, most of the existing features or descriptors cannot capture motion information effectively, especially for long-term…

Computer Vision and Pattern Recognition · Computer Science 2017-02-13 Yemin Shi , Yonghong Tian , Yaowei Wang , Tiejun Huang

We describe an automatic event recognition (AER) system based on a three-dimensional spatio-temporal correlator (STC) that combines the techniques of holographic correlation and photon echo based temporal pattern recognition. The STC is…

Optics · Physics 2016-08-24 Mehjabin S. Monjur , Mohamed F. Fouda , Selim M. Shahriar

SAM 3D Body (3DB) achieves state-of-the-art accuracy in monocular 3D human mesh recovery, yet its inference latency of several seconds per image precludes real-time application. We present Fast SAM 3D Body, a training-free acceleration…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Timing Yang , Sicheng He , Hongyi Jing , Jiawei Yang , Zhijian Liu , Chuhang Zou , Yue Wang

We propose a novel method for 3D point cloud action recognition. Understanding human actions in RGB videos has been widely studied in recent years, however, its 3D point cloud counterpart remains under-explored. This is mostly due to the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-01 Yizhak Ben-Shabat , Oren Shrout , Stephen Gould

Identifying individuals in unconstrained video settings is a valuable yet challenging task in biometric analysis due to variations in appearances, environments, degradations, and occlusions. In this paper, we present ShARc, a multimodal…

Computer Vision and Pattern Recognition · Computer Science 2023-10-25 Haidong Zhu , Wanrong Zheng , Zhaoheng Zheng , Ram Nevatia

We present a unified perspective on tackling various human-centric video tasks by learning human motion representations from large-scale and heterogeneous data resources. Specifically, we propose a pretraining stage in which a motion…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Wentao Zhu , Xiaoxuan Ma , Zhaoyang Liu , Libin Liu , Wayne Wu , Yizhou Wang

Human actions recognition has attracted more and more people's attention. Many technology have been developed to express human action's features, such as image, skeleton-based, and channel state information(CSI). Among them, on account of…

Computer Vision and Pattern Recognition · Computer Science 2019-11-22 Liu Yafeng , Chen Tian , Liu Zhongyu , Zhang Lei , Hu Yanjun , Ding Enjie

The task of action detection aims at deducing both the action category and localization of the start and end moment for each action instance in a long, untrimmed video. While vision Transformers have driven the recent advances in video…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Yuetian Weng , Zizheng Pan , Mingfei Han , Xiaojun Chang , Bohan Zhuang

Though significant progress in human pose and shape recovery from monocular RGB images has been made in recent years, obtaining 3D human motion with high accuracy and temporal consistency from videos remains challenging. Existing…

Computer Vision and Pattern Recognition · Computer Science 2023-11-17 Ming Chen , Yan Zhou , Weihua Jian , Pengfei Wan , Zhongyuan Wang

To fluently collaborate with people, robots need the ability to recognize human activities accurately. Although modern robots are equipped with various sensors, robust human activity recognition (HAR) still remains a challenging task for…

Robotics · Computer Science 2020-08-17 Md Mofijul Islam , Tariq Iqbal

Fully supervised skeleton-based action recognition has achieved great progress with the blooming of deep learning techniques. However, these methods require sufficient labeled data which is not easy to obtain. In contrast, self-supervised…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Wenhan Wu , Yilei Hua , Ce Zheng , Shiqian Wu , Chen Chen , Aidong Lu

Human Activity Recognition (HAR) such as fall detection has become increasingly critical due to the aging population, necessitating effective monitoring systems to prevent serious injuries and fatalities associated with falls. This study…

Computer Vision and Pattern Recognition · Computer Science 2025-03-05 Yijun Wang , Yong Wang , Chendong xu , Shuai Yao , Qisong Wu

Adaptive sampling that exploits the spatiotemporal redundancy in videos is critical for always-on action recognition on wearable devices with limited computing and battery resources. The commonly used fixed sampling strategy is not…

Computer Vision and Pattern Recognition · Computer Science 2022-07-18 Khoi-Nguyen C. Mac , Minh N. Do , Minh P. Vo

Existing action recognition methods mainly focus on joint and bone information in human body skeleton data due to its robustness to complex backgrounds and dynamic characteristics of the environments. In this paper, we combine body skeleton…

Computer Vision and Pattern Recognition · Computer Science 2021-06-07 Umar Asif , Deval Mehta , Stefan von Cavallar , Jianbin Tang , Stefan Harrer

3D action recognition is referred to as the classification of action sequences which consist of 3D skeleton joints. While many research work are devoted to 3D action recognition, it mainly suffers from three problems: highly complicated…

Computer Vision and Pattern Recognition · Computer Science 2021-09-08 Bin Sun , Shaofan Wang , Dehui Kong , Lichun Wang , Baocai Yin

Skeleton-based human action recognition has recently attracted increasing attention thanks to the accessibility and the popularity of 3D skeleton data. One of the key challenges in skeleton-based action recognition lies in the large view…

Computer Vision and Pattern Recognition · Computer Science 2019-09-04 Pengfei Zhang , Cuiling Lan , Junliang Xing , Wenjun Zeng , Jianru Xue , Nanning Zheng

Deep learning models have enjoyed great success for image related computer vision tasks like image classification and object detection. For video related tasks like human action recognition, however, the advancements are not as significant…

Computer Vision and Pattern Recognition · Computer Science 2018-09-12 Xiaolin Song , Cuiling Lan , Wenjun Zeng , Junliang Xing , Jingyu Yang , Xiaoyan Sun

Human Activity Recognition (HAR) systems aim to understand human behaviour and assign a label to each action, attracting significant attention in computer vision due to their wide range of applications. HAR can leverage various data…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Jungpil Shin , Najmul Hassan , Abu Saleh Musa Miah1 , Satoshi Nishimura

There exist a wide range of intra class variations of the same actions and inter class similarity among the actions, at the same time, which makes the action recognition in videos very challenging. In this paper, we present a novel…

Computer Vision and Pattern Recognition · Computer Science 2019-12-03 Chhavi Dhiman , Dinesh Kumar Vishwakarma , Paras Aggarwal