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Wearable inertial measurement units (IMUs) provide a cost-effective approach to assessing human movement in clinical and everyday environments. However, developing the associated classification models for robust assessment of…

Computer Vision and Pattern Recognition · Computer Science 2025-11-10 Andreas Spilz , Heiko Oppel , Jochen Werner , Kathrin Stucke-Straub , Felix Capanni , Michael Munz

Inertial Measurement Units (IMUs) enable portable, multibody motion capture (MoCap) in diverse environments beyond the laboratory, making them a practical choice for diagnosing mobility disorders and supporting rehabilitation in clinical or…

Robotics · Computer Science 2025-05-14 Hassan Osman , Daan de Kanter , Jelle Boelens , Manon Kok , Ajay Seth

This work aims to discuss the current landscape of kinematic analysis tools, ranging from the state-of-the-art in sports biomechanics such as inertial measurement units (IMUs) and retroreflective marker-based optical motion capture (MoCap)…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Kai Armstrong , Alexander Rodrigues , Alexander P. Willmott , Lei Zhang , Xujiong Ye

Wearable sensors such as Inertial Measurement Units (IMUs) are often used to assess the performance of human exercise. Common approaches use handcrafted features based on domain expertise or automatically extracted features using time…

Computer Vision and Pattern Recognition · Computer Science 2023-07-11 Ashish Singh , Antonio Bevilacqua , Timilehin B. Aderinola , Thach Le Nguyen , Darragh Whelan , Martin O'Reilly , Brian Caulfield , Georgiana Ifrim

Missing data is a common problem in real-world settings and particularly relevant in healthcare applications where researchers use Electronic Health Records (EHR) and results of observational studies to apply analytics methods. This issue…

Machine Learning · Statistics 2018-12-04 Dimitris Bertsimas , Agni Orfanoudaki , Colin Pawlowski

Monocular 3D motion capture (mocap) is beneficial to many applications. The use of a single camera, however, often fails to handle occlusions of different body parts and hence it is limited to capture relatively simple movements. We present…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Han Liang , Yannan He , Chengfeng Zhao , Mutian Li , Jingya Wang , Jingyi Yu , Lan Xu

Marker-based optical motion capture (MoCap) systems are widely used to provide ground truth (GT) trajectories for benchmarking SLAM algorithms. However, the accuracy of MoCap-based GT trajectories is mainly affected by two factors:…

Robotics · Computer Science 2025-07-18 Zichao Shu , Shitao Bei , Jicheng Dai , Lijun Li , Zetao Chen

Wearable inertial motion capture (MoCap) provides a portable, occlusion-free, and privacy-preserving alternative to camera-based systems, but its accuracy depends on tightly attached sensors - an intrusive and uncomfortable requirement for…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Jiawei Fang , Ruonan Zheng , Xiaoxia Gao , Shifan Jiang , Anjun Chen , Qi Ye , Shihui Guo

Optical motion capture (MoCap) is the "gold standard" for accurately capturing full-body motions. To make use of raw MoCap point data, the system labels the points with corresponding body part locations and solves the full-body motions.…

Computer Vision and Pattern Recognition · Computer Science 2024-10-07 Xiaoyu Pan , Bowen Zheng , Xinwei Jiang , Zijiao Zeng , Qilong Kou , He Wang , Xiaogang Jin

Either RGB images or inertial signals have been used for the task of motion capture (mocap), but combining them together is a new and interesting topic. We believe that the combination is complementary and able to solve the inherent…

Computer Vision and Pattern Recognition · Computer Science 2023-09-04 Shaohua Pan , Qi Ma , Xinyu Yi , Weifeng Hu , Xiong Wang , Xingkang Zhou , Jijunnan Li , Feng Xu

Marker-based motion capture (MoCap) systems have long been the gold standard for accurate 4D human modeling, yet their reliance on specialized hardware and markers limits scalability and real-world deployment. Advancing reliable markerless…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Yeeun Park , Miqdad Naduthodi , Suryansh Kumar

We present Capturing the Unseen (CAPUS), a novel facial motion capture (MoCap) technique that operates without visual signals. CAPUS leverages miniaturized Inertial Measurement Units (IMUs) as a new sensing modality for facial motion…

Computer Vision and Pattern Recognition · Computer Science 2024-09-20 Youjia Wang , Yiwen Wu , Hengan Zhou , Hongyang Lin , Xingyue Peng , Jingyan Zhang , Yingsheng Zhu , Yingwenqi Jiang , Yatu Zhang , Lan Xu , Jingya Wang , Jingyi Yu

To help smart wearable researchers choose the optimal ground truth methods for motion capturing (MoCap) for all types of loose garments, we present a benchmark, DrapeMoCapBench (DMCB), specifically designed to evaluate the performance of…

Computer Vision and Pattern Recognition · Computer Science 2023-07-26 Lala Shakti Swarup Ray , Bo Zhou , Sungho Suh , Paul Lukowicz

Presence of missing values in a dataset can adversely affect the performance of a classifier. Single and Multiple Imputation are normally performed to fill in the missing values. In this paper, we present several variants of combining…

Machine Learning · Computer Science 2019-10-16 Shehroz S. Khan , Amir Ahmad , Alex Mihailidis

As a contribution to reproducible research, this paper presents a framework and a database to improve the development, evaluation and comparison of methods for gait recognition from motion capture (MoCap) data. The evaluation framework…

Computer Vision and Pattern Recognition · Computer Science 2022-12-09 Michal Balazia , Petr Sojka

Compared with visual signals, Inertial Measurement Units (IMUs) placed on human limbs can capture accurate motion signals while being robust to lighting variation and occlusion. While these characteristics are intuitively valuable to help…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Mingfang Zhang , Yifei Huang , Ruicong Liu , Yoichi Sato

Tabular data are central to many applications, especially longitudinal data in healthcare, where missing values are common, undermining model fidelity and reliability. Prior imputation methods either impose restrictive assumptions or…

Machine Learning · Computer Science 2025-09-30 Dengyi Liu , Honggang Wang , Hua Fang

We present a lightweight and affordable motion capture method based on two smartwatches and a head-mounted camera. In contrast to the existing approaches that use six or more expert-level IMU devices, our approach is much more…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Jiye Lee , Hanbyul Joo

Together with the rapid development of the Internet of Things (IoT), human activity recognition (HAR) using wearable Inertial Measurement Units (IMUs) becomes a promising technology for many research areas. Recently, deep learning-based…

Computer Vision and Pattern Recognition · Computer Science 2020-10-12 Ling Pei , Songpengcheng Xia , Lei Chu , Fanyi Xiao , Qi Wu , Wenxian Yu , Robert Qiu

Advances in machine learning and wearable sensors offer new opportunities for capturing and analyzing human movement outside specialized laboratories. Accurate assessment of human movement under real-world conditions is essential for…

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