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Despite LiDAR (Light Detection and Ranging) being an effective privacy-preserving alternative to RGB cameras to perceive human activities, it remains largely underexplored in the context of multi-modal contrastive pre-training for human…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Thomas Kreutz , Max Mühlhäuser , Alejandro Sanchez Guinea

Gait analysis using computer vision is an emerging field in AI, offering clinicians an objective, multi-feature approach to analyse complex movements. Despite its promise, current applications using RGB video data alone are limited in…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Rahm Ranjan , David Ahmedt-Aristizabal , Mohammad Ali Armin , Juno Kim

{Recognizing human interactions is essential for social robots as it enables them to navigate safely and naturally in shared environments. Conventional robotic systems however often focus on obstacle avoidance, neglecting social cues…

This paper proposes an edge computing system that enables estimating physical activities of people in offices from time-series point-cloud data, obtained by using a light-detection-and-ranging (LIDAR) sensor network. The paper presents that…

Human-Computer Interaction · Computer Science 2022-11-18 Koki Kizawa , Ryoichi Shinkuma , Gabriele Trovato

Skeleton-based human action recognition is a powerful approach for understanding human behaviour from pose data, but collecting large-scale, diverse, and well-annotated 3D skeleton datasets is both expensive and labor-intensive. To address…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Xu Dong , Wanqing Li , Anthony Adeyemi-Ejeye , Andrew Gilbert

We propose BGM2Pose, a non-invasive 3D human pose estimation method using arbitrary music (e.g., background music) as active sensing signals. Unlike existing approaches that significantly limit practicality by employing intrusive chirp…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Yuto Shibata , Yusuke Oumi , Go Irie , Akisato Kimura , Yoshimitsu Aoki , Mariko Isogawa

3D Human Pose Estimation (HPE) is the task of locating keypoints of the human body in 3D space from 2D or 3D representations such as RGB images, depth maps or point clouds. Current HPE methods from depth and point clouds predominantly rely…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Irene Ballester , Ondřej Peterka , Martin Kampel

Activity recognition using built-in sensors in smart and wearable devices provides great opportunities to understand and detect human behavior in the wild and gives a more holistic view of individuals' health and well being. Numerous…

Signal Processing · Electrical Eng. & Systems 2020-11-16 Mehrdad Fazli , Kamran Kowsari , Erfaneh Gharavi , Laura Barnes , Afsaneh Doryab

Human Activity Recognition (HAR) using wearable devices such as smart watches embedded with Inertial Measurement Unit (IMU) sensors has various applications relevant to our daily life, such as workout tracking and health monitoring. In this…

Computer Vision and Pattern Recognition · Computer Science 2021-12-22 Wenjin Tao , Haodong Chen , Md Moniruzzaman , Ming C. Leu , Zhaozheng Yi , Ruwen Qin

This paper reports on a data-driven, interaction-aware motion prediction approach for pedestrians in environments cluttered with static obstacles. When navigating in such workspaces shared with humans, robots need accurate motion…

Robotics · Computer Science 2018-02-27 Mark Pfeiffer , Giuseppe Paolo , Hannes Sommer , Juan Nieto , Roland Siegwart , Cesar Cadena

Motion, measured via optical flow, provides a powerful cue to discover and learn objects in images and videos. However, compared to using appearance, it has some blind spots, such as the fact that objects become invisible if they do not…

Computer Vision and Pattern Recognition · Computer Science 2022-10-17 Subhabrata Choudhury , Laurynas Karazija , Iro Laina , Andrea Vedaldi , Christian Rupprecht

In this study, a novel method to obtain user-dependent human activity recognition models unobtrusively by exploiting the sensors of a smartphone is presented. The recognition consists of two models: sensor fusion-based user-independent…

Machine Learning · Computer Science 2019-05-30 Pekka Siirtola , Heli Koskimäki , Juha Röning

Recognition of human actions and associated interactions with objects and the environment is an important problem in computer vision due to its potential applications in a variety of domains. The most versatile methods can generalize to…

Computer Vision and Pattern Recognition · Computer Science 2019-12-10 Behnoosh Parsa , Athma Narayanan , Behzad Dariush

The problem of human activity recognition is central for understanding and predicting the human behavior, in particular in a prospective of assistive services to humans, such as health monitoring, well being, security, etc. There is…

Machine Learning · Statistics 2013-12-30 Faicel Chamroukhi , Samer Mohammed , Dorra Trabelsi , Latifa Oukhellou , Yacine Amirat

Vision-based automatic counting of people has widespread applications in intelligent transportation systems, security, and logistics. However, there is currently no large-scale public dataset for benchmarking approaches on this problem.…

Computer Vision and Pattern Recognition · Computer Science 2018-10-30 ShiJie Sun , Naveed Akhtar , HuanSheng Song , ChaoYang Zhang , JianXin Li , Ajmal Mian

Human motion prediction and understanding is a challenging problem. Due to the complex dynamic of human motion and the non-deterministic aspect of future prediction. We propose a novel sequence-to-sequence model for human motion prediction…

Computer Vision and Pattern Recognition · Computer Science 2021-01-01 Emad Barsoum , John Kender , Zicheng Liu

Point cloud-based motion capture leverages rich spatial geometry and privacy-preserving sensing, but learning robust representations from noisy, unstructured point clouds remains challenging. Existing approaches face a struggle trade-off…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Yiming Ren , Yujing Sun , Aoru Xue , Kwok-Yan Lam , Yuexin Ma

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

Human activity recognition has wide applications in medical research and human survey system. In this project, we design a robust activity recognition system based on a smartphone. The system uses a 3-dimentional smartphone accelerometer as…

Computers and Society · Computer Science 2014-02-03 Amin Rasekh , Chien-An Chen , Yan Lu

We introduce a new method that generates photo-realistic humans under novel views and poses given a monocular video as input. Despite the significant progress recently on this topic, with several methods exploring shared canonical neural…

Computer Vision and Pattern Recognition · Computer Science 2023-04-21 Tiantian Wang , Nikolaos Sarafianos , Ming-Hsuan Yang , Tony Tung