Results 41 to 50 of about 229,998 (274)

Measuring Spinal Mobility Using an Inertial Measurement Unit System: A Validation Study in Axial Spondyloarthritis

Diagnostics, 2020
Portable inertial measurement units (IMUs) are beginning to be used in human motion analysis. These devices can be useful for the evaluation of spinal mobility in individuals with axial spondyloarthritis (axSpA).
I. Concepción Aranda-Valera, Antonio Cuesta-Vargas, Juan L. Garrido-Castro, Philip V. Gardiner, Clementina López-Medina, Pedro M. Machado, Joan Condell, James Connolly, Jonathan M. Williams, Karla Muñoz-Esquivel, Tom O’Dwyer, M. Carmen Castro-Villegas, Cristina González-Navas, Eduardo Collantes-Estévez, on behalf of iMaxSpA Study Group   +14 more
doaj   +1 more source

Validation of an IMU Suit for Military-Based Tasks

Sensors, 2020
Investigating the effects of load carriage on military soldiers using optical motion capture is challenging. However, inertial measurement units (IMUs) provide a promising alternative.
Matthew P. Mavor, Gwyneth B. Ross, Allison L. Clouthier, Thomas Karakolis, Ryan B. Graham   +4 more
doaj   +1 more source

Markerless motion capture of hands and fingers in high-speed throwing task and its accuracy verification

Mechanical Engineering Journal, 2023
In human motion capture systems, reflective markers attached to the body have been widely used to track motion using optical cameras. However, when the speed of motion increases, because the brightness and angle of view of the camera are limited, and the
Ayane KUSAFUKA, Naoki TSUKAMOTO, Kohei MIYATA, Kazutoshi KUDO   +3 more
doaj   +1 more source

Predicting Missing Markers in Real-Time Optical Motion Capture [PDF]

, 2009
Lecture Notes in Computer Science ...
Piazza, Tommaso, Lundström, Johan, Kunz, Andreas; id_orcid0000-0002-6495-4327, Fjeld, Morten   +3 more
openaire   +2 more sources

Movement Analysis for Neurological and Musculoskeletal Disorders Using Graph Convolutional Neural Network

Future Internet, 2021
Using optical motion capture and wearable sensors is a common way to analyze impaired movement in individuals with neurological and musculoskeletal disorders.
Ibsa K. Jalata, Thanh-Dat Truong, Jessica L. Allen, Han-Seok Seo, Khoa Luu   +4 more
doaj   +1 more source

Analysis of Kinematics of Flapping Wing UAV Using OptiTrack Systems

Aerospace, 2016
An analysis of the kinematics of a flapping membrane wing using experimental kinematic data is presented. This motion capture technique tracks the positon of the retroreflective marker(s) placed on the left wing of a 1.3-m-wingspan ornithopter.
Matthew Ng Rongfa, Teppatat Pantuphag, Sutthiphong Srigrarom   +2 more
doaj   +1 more source

Advanced Millimeter Wave Radar-Based Human Pose Estimation Enabled by a Deep Learning Neural Network Trained With Optical Motion Capture Ground Truth Data

IEEE Journal of Microwaves
This paper presents a deep learning-enabled method for human pose estimation using radar target lists, obtained through a low-cost radar system with three transmitters and four receivers in a multiple-input multiple-output setup. We address challenges in
L. Engel, J. Mueller, Eduardo Rendón, Eva Dorschky, Daniel Krauss, I. Ullmann, B. Eskofier, M. Vossiek   +7 more
semanticscholar   +1 more source

Measurement of Disassembly Work Using Optical Motion Capture

, 2023
AbstractIn recent years, the depletion of natural resources has been severe globally. One of the solutions to this problem is to reuse and recycle materials from end-of-life (EOL) products and reduce waste. In the industrial field, disassembly work is needed to take back parts/materials from the end-of-life assembly products.
Ryuto Kawane, Hiromasa Ijuin, Ryosuke Nakajima, Masao Sugi, Shuho Yamada, Tetsuo Yamada   +5 more
openaire   +1 more source

A trial toward sub-100 nm motion error compensation of ultra-precision machine tool using on-machine metrology system with chromatic confocal probe

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2021
Aspherical or free-form optical surface machining using an ultra-precision machine tool is a common and effective method used in the manufacturing of precision optics.
Hao DUAN, Shinya MORITA, Takuya HOSOBATA, Masahiro TAKEDA, Yutaka YAMAGATA   +4 more
doaj   +1 more source

Joint Center Estimation Using Single-Frame Optimization: Part 2: Experimentation

Sensors, 2018
Human motion capture is driven by joint center location estimates, and error in their estimation can be compounded by subsequent kinematic calculations. Soft tissue artifact (STA), the motion of tissue relative to the underlying bones, is a primary cause
Eric Frick, Salam Rahmatalla
doaj   +1 more source