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Surface electromyography (sEMG) signal-based activity recognition has attracted increasing research attention in recent years. To develop accurate sEMG signal-based activity recognizers, numerous approaches have been proposed. Some studies…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Ming Wang , Haoxuan Qu , Qiuhong Ke , Wei Zhou , Hossein Rahmani , Jun Liu

Human activity recognition (HAR) based on mobile sensors plays an important role in ubiquitous computing. However, the rise of data regulatory constraints precludes collecting private and labeled signal data from personal devices at scale.…

Signal Processing · Electrical Eng. & Systems 2021-06-02 Chenglin Li , Di Niu , Bei Jiang , Xiao Zuo , Jianming Yang

Human Activity Recognition (HAR) plays a significant role in the everyday life of people because of its ability to learn extensive high-level information about human activity from wearable or stationary devices. A substantial amount of…

Signal Processing · Electrical Eng. & Systems 2022-09-09 Md. Milon Islam , Sheikh Nooruddin , Fakhri Karray , Ghulam Muhammad

Temporal grounding of activities, the identification of specific time intervals of actions within a larger event context, is a critical task in video understanding. Recent advancements in multimodal large language models (LLMs) offer new…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Young Chol Song

Human body pose estimation and hand detection are two important tasks for systems that perform computer vision-based sign language recognition(SLR). However, both tasks are challenging, especially when the input is color videos, with no…

Computer Vision and Pattern Recognition · Computer Science 2016-04-21 Srujana Gattupalli , Amir Ghaderi , Vassilis Athitsos

Recently, deep learning (DL) methods have been introduced very successfully into human activity recognition (HAR) scenarios in ubiquitous and wearable computing. Especially the prospect of overcoming the need for manual feature design…

Machine Learning · Computer Science 2018-09-03 Yu Guan , Thomas Ploetz

Understanding human activity is a crucial yet intricate task in egocentric vision, a field that focuses on capturing visual perspectives from the camera wearer's viewpoint. Traditional methods heavily rely on representation learning that is…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Sanghwan Kim , Daoji Huang , Yongqin Xian , Otmar Hilliges , Luc Van Gool , Xi Wang

As a fundamental problem in ubiquitous computing and machine learning, sensor-based human activity recognition (HAR) has drawn extensive attention and made great progress in recent years. HAR aims to recognize human activities based on the…

Signal Processing · Electrical Eng. & Systems 2022-03-01 Yimu Wang , Kun Yu , Yan Wang , Hui Xue

Rather than simply recognizing the action of a person individually, collective activity recognition aims to find out what a group of people is acting in a collective scene. Previ- ous state-of-the-art methods using hand-crafted potentials…

Computer Vision and Pattern Recognition · Computer Science 2017-09-21 Yongyi Tang , Peizhen Zhang , Jian-Fang Hu , Wei-Shi Zheng

Existing semi-supervised video anomaly detection (VAD) methods often struggle with detecting complex anomalies involving object interactions and generally lack explainability. To overcome these limitations, we propose a novel VAD framework…

Computer Vision and Pattern Recognition · Computer Science 2026-03-02 Furkan Mumcu , Michael J. Jones , Anoop Cherian , Yasin Yilmaz

Human pose plays a crucial role in the digital age. While recent works have achieved impressive progress in understanding and generating human poses, they often support only a single modality of control signals and operate in isolation,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Yiheng Li , Ruibing Hou , Hong Chang , Shiguang Shan , Xilin Chen

Most approaches that model time-series data in human activity recognition based on body-worn sensing (HAR) use a fixed size temporal context to represent different activities. This might, however, not be apt for sets of activities with…

Computer Vision and Pattern Recognition · Computer Science 2018-05-22 Vishvak S Murahari , Thomas Ploetz

The significant advancements in visual understanding and instruction following from Multimodal Large Language Models (MLLMs) have opened up more possibilities for broader applications in diverse and universal human-centric scenarios.…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Keliang Li , Zaifei Yang , Jiahe Zhao , Hongze Shen , Ruibing Hou , Hong Chang , Shiguang Shan , Xilin Chen

In this paper, we investigate the use of multimodal large language models (MLLMs) for generating virtual activities, leveraging the integration of vision-language modalities to enable the interpretation of virtual environments. Our approach…

Human-Computer Interaction · Computer Science 2025-11-13 Changyang Li , Qingan Yan , Minyoung Kim , Zhan Li , Yi Xu , Lap-Fai Yu

This article proposes a novel attention-based body pose encoding for human activity recognition that presents a enriched representation of body-pose that is learned. The enriched data complements the 3D body joint position data and improves…

Computer Vision and Pattern Recognition · Computer Science 2020-10-05 B Debnath , M O'brien , S Kumar , A Behera

Human activity recognition using deep learning techniques has become increasing popular because of its high effectivity with recognizing complex tasks, as well as being relatively low in costs compared to more traditional machine learning…

Computer Vision and Pattern Recognition · Computer Science 2022-04-29 Wei Zhong Tee , Rushit Dave , Naeem Seliya , Mounika Vanamala

Human activity recognition (HAR) is a classification task that aims to classify human activities or predict human behavior by means of features extracted from sensors data. Typical HAR systems use wearable sensors and/or handheld and mobile…

Limited access to medical infrastructure forces elderly and vulnerable patients to rely on home-based care, often leading to neglect and poor adherence to therapeutic exercises such as yoga or physiotherapy. To address this gap, we propose…

Machine Learning · Computer Science 2026-02-02 Ramakant Kumar , Pravin Kumar

Large Language Models (LLMs) have gained popularity in task planning for long-horizon manipulation tasks. To enhance the validity of LLM-generated plans, visual demonstrations and online videos have been widely employed to guide the…

Robotics · Computer Science 2025-03-12 Kejia Chen , Zheng Shen , Yue Zhang , Lingyun Chen , Fan Wu , Zhenshan Bing , Sami Haddadin , Alois Knoll

Visual Robot Manipulation (VRM) aims to enable a robot to follow natural language instructions based on robot states and visual observations, and therefore requires costly multi-modal data. To compensate for the deficiency of robot data,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Dejie Yang , Zijing Zhao , Yang Liu