Results 1 to 10 of about 8,152 (183)

Validating Knee Varus Alignment Measurements Using Markerless Motion Capture [PDF]

Geriatrics, 2023
This study aimed to determine the validity of specific knee varus alignment measurement methods. We measured the femorotibial angle (FTA) using radiography and optical motion capture and validated the FTA measurement using markerless motion capture.
Kensuke Todoriki, Yoshihiro Kai, Shogo Mukai, Shin Murata   +3 more
doaj   +4 more sources

Examination of 2D frontal and sagittal markerless motion capture: Implications for markerless applications. [PDF]

PLoS ONE, 2023
This study examined if occluded joint locations, obtained from 2D markerless motion capture (single camera view), produced 2D joint angles with reduced agreement compared to visible joints, and if 2D frontal plane joint angles were usable for practical ...
Logan Wade, Laurie Needham, Murray Evans, Polly McGuigan, Steffi Colyer, Darren Cosker, James Bilzon   +6 more
doaj   +4 more sources

Marker Data Enhancement for Markerless Motion Capture. [PDF]

IEEE Trans Biomed Eng
AbstractObjectiveHuman pose estimation models can measure movement from videos at a large scale and low cost; however, open-source pose estimation models typically detect only sparse keypoints, which leads to inaccurate joint kinematics. OpenCap, a freely available service for researchers to measure movement from videos, addresses this issue using a ...
Falisse A, Uhlrich SD, Chaudhari AS, Hicks JL, Delp SL.   +4 more
europepmc   +4 more sources

Markerless Motion Capture in the Crowd [PDF]

, 2012
This work uses crowdsourcing to obtain motion capture data from video recordings. The data is obtained by information workers who click repeatedly to indicate body configurations in the frames of a video, resulting in a model of 2D structure over time ...
Bregler, Christoph, Huston, Thomas, Spiro, Ian   +2 more
core   +2 more sources

Between-Day Reliability of Kinematic Variables Using Markerless Motion Capture for Single-Leg Squat and Single-Leg Landing Tasks [PDF]

International Journal of Sports Physical Therapy
# Background Markerless motion capture has the potential to repeatedly collect biomechanical data during activities associated with injuries. Few studies have assessed the reliability of this technology during single-leg tasks. # Purpose The primary aim
Matias Yoma, Lee Herrington, Chelsea Starbuck, Luis Llurda, Richard Jones   +4 more
doaj   +2 more sources

Validation of Gait Kinematics With Ramp and Stair Ascent and Descent Revealed by Markerless Motion Capture in Simulated Living Space: Test-Retest Reliability Study [PDF]

JMIR Rehabilitation and Assistive Technologies
BackgroundIn recent years, there has been an increasing demand for markerless motion capture systems, which are being widely used in biomechanical and clinical research. Furthermore, by using a markerless motion capture system in a laboratory environment
Daiki Shimotori, Kenji Kato, Tatsuya Yoshimi, Izumi Kondo   +3 more
doaj   +2 more sources

Evaluation of drop vertical jump kinematics and kinetics using 3D markerless motion capture in a large cohort [PDF]

Frontiers in Bioengineering and Biotechnology
Introduction3D Markerless motion capture technologies have advanced significantly over the last few decades to overcome limitations of marker-based systems, which require significant cost, time, and specialization.
Tylan Templin, Christopher D. Riehm, Christopher D. Riehm, Christopher D. Riehm, Travis Eliason, Tessa C. Hulburt, Tessa C. Hulburt, Tessa C. Hulburt, Samuel T. Kwak, Samuel T. Kwak, Samuel T. Kwak, Omar Medjaouri, David Chambers, Manish Anand, Manish Anand, Manish Anand, Manish Anand, Kase Saylor, Gregory D. Myer, Gregory D. Myer, Gregory D. Myer, Gregory D. Myer, Gregory D. Myer, Gregory D. Myer, Daniel P. Nicolella   +24 more
doaj   +2 more sources

The applicability of markerless motion capture for clinical gait analysis in children with cerebral palsy [PDF]

Scientific Reports
The aim of this comparative, cross-sectional study was to determine whether markerless motion capture can track deviating gait patterns in children with cerebral palsy (CP) to a similar extent as marker-based motion capturing. Clinical gait analysis (CGA)
Koen Wishaupt, Wouter Schallig, Marleen H. van Dorst, Annemieke I. Buizer, Marjolein M. van der Krogt   +4 more
doaj   +2 more sources

Markerless 3D motion capture for animal locomotion studies [PDF]

Biology Open, 2014
Obtaining quantitative data describing the movements of animals is an essential step in understanding their locomotor biology. Outside the laboratory, measuring animal locomotion often relies on video-based approaches and analysis is hampered because of ...
William Irvin Sellers, Eishi Hirasaki
doaj   +3 more sources

Evaluation of 3D Markerless Motion Capture System Accuracy during Skate Skiing on a Treadmill [PDF]

Bioengineering
In this study, we developed a deep learning-based 3D markerless motion capture system for skate skiing on a treadmill and evaluated its accuracy against marker-based motion capture during G1 and G3 skating techniques. Participants performed roller skiing
Petra Torvinen, Keijo S. Ruotsalainen, Shuang Zhao, Neil Cronin, Olli Ohtonen, Vesa Linnamo   +5 more
doaj   +2 more sources