Results 61 to 70 of about 2,274 (169)

Comparison of markerless and marker-based motion capture systems using 95% functional limits of agreement in a linear mixed-effects modelling framework

Scientific Reports, 2023
Biomechanics analysis of human movement has been proven useful for maintenance of health, injury prevention, and rehabilitation in both sports and clinical populations.
Kishor Das, Thiago de Paula Oliveira, John Newell   +2 more
doaj   +1 more source

Prospective Head Motion Correction in T1‐ and T2‐Weighted Long Echo Train Sequences Using Servo Navigation

Magnetic Resonance in Medicine, Volume 96, Issue 4, Page 1741-1754, October 2026.
ABSTRACT Purpose To integrate MR‐based servo navigation in MPRAGE and 3D‐TSE sequences and demonstrate its potential for prospective head motion correction in structural imaging. Methods Repeated modules of servo navigators were inserted before each preparation pulse of MPRAGE and 3D‐TSE sequences (before‐prep) for rapid convergence of motion parameter
Matthias Serger, Malte Riedel, Rüdiger Stirnberg, Thomas Ulrich, Nicolas Boulant, Klaas P. Pruessmann, Tony Stöcker, Philipp Ehses   +7 more
wiley   +1 more source

Markerless Motion Capture Algorithm for Lizard Biomimetics [PDF]

Journal of the Institute of Electronics and Information Engineers, 2013
In this paper, a algorithm to find joints of a small animal like a lizard from the multiple-view silhouette images is presented. The proposed algorithm is able to calculate the 3D coordinates so that the locomotion of the lizard is markerlessly reconstructed. The silhouette images of the lizard was obtained by a adaptive threshold algorithm.
Chang Hoi Kim, Tae Won Kim, Ho Cheol Shin, Heung Ho Lee   +3 more
openaire   +1 more source

Functional models from limited data: A parametric and multimodal approach to anatomy and 3D kinematics of feeding in basking sharks (Cetorhinus maximus)

The Anatomical Record, Volume 309, Issue 9, Page 2262-2285, September 2026.
Abstract Basking sharks, Cetorhinus maximus (Gunnerus, Brugden [Squalus maximus], Det Kongelige Norske Videnskabers Selskabs Skrifter, 1765, vol. 3, pp. 33–49), feed by gaping their mouths and gill slits, greatly reorienting their cranial skeletons to filter food from water.
Tairan Li, Mike Schindler, Martha Paskin, Venkata A. Surapaneni, Elliott Scott, Sabine Hauert, Nicholas Payne, David E. Cade, Jeremy A. Goldbogen, Frederik H. Mollen, Daniel Baum, Sean Hanna, Mason N. Dean   +12 more
wiley   +1 more source

Markerless Motion Capture with Multi-view Structured Light

Electronic Imaging, 2016
We present a multi-view structured light system for markerless motion capture of human subjects. In contrast to existing approaches that use multiple camera streams, we reconstruct the scene by combining six partial 3D scans generated from three structured light stations surrounding the subject and operating in a round robin fashion.
Ricardo R. Garcia, Avideh Zakhor
openaire   +1 more source

Validation of a handheld smartphone markerless gait‐analysis tool using an estimated groundline in horses

Equine Veterinary Journal, Volume 58, Issue 5, Page 1493-1504, September 2026.
Abstract Background A handheld smartphone‐based computer vision algorithm (RealHorse® [RH]) offers accessible alternatives for equine gait analysis but requires validation against a gold‐standard three‐dimensional multicamera optical motion capture system (Qualisys® [QS]).
Karsten Key, Jakob Kirkegaard, Katja Berg, Kristian Ringkjær Andresen, Sabrina Skov Hansen   +4 more
wiley   +1 more source

Intra‐MRI Head Motion Tracking and Correction: A Quantitative In Vivo Evaluation Framework

NMR in Biomedicine, Volume 39, Issue 9, September 2026.
This framework introduces, for the first time, an in vivo quantification of intra‐MRI head tracking accuracy and precision. By comparing a markerless optical system (MOS) and fat‐signal navigators (FatNav) against a rigid registration‐based reference standard, it successfully detects subtle, axis‐specific performance differences and strengths between ...
Zakaria Zariry, Franck Lamberton, Robert Frost, Thomas Gaass, Thomas Troalen, Holly Rayson, Jakob M. Slipsager, Nathalie Richard, Andre van der Kouwe, James Bonaiuto, Bassem Hiba   +10 more
wiley   +1 more source

Artificial Intelligence in Veterinary Neurology: Comparative Insights From Human Medicine and Cross‐Species Technology Transfer

Veterinary Medicine and Science, Volume 12, Issue 5, September 2026.
Overview of major artificial intelligence applications in veterinary neurology, including neuroimaging, seizure prediction, gait and pain assessment, and prognostic modeling. The figure also highlights cross‐species technology transfer and key challenges, such as limited data, lack of standardization, and ethical concerns.
Kianoush Saberi, Rosull Saadoon Abbood, Sarah F. Al‐Taie, Aseel Smerat, Abdullaev Makhmudjon Mukhamedovich, Maksudova Malika Khamdamjonovna, Mohammad Hedayatinia, Arash Zarei, Mehrdad Nourizadeh, Amir Arsalan Ghahari, Mehrdad Neshat Gharamaleki, Fatemeh Malekinejad, Reza Akhavan‐Sigari   +12 more
wiley   +1 more source

Reliability, agreement and variability of a markerless computer vision algorithm for equine gait analysis under field conditions

Equine Veterinary Journal, Volume 58, Issue 5, Page 1467-1481, September 2026.
Abstract Background Computer vision‐based algorithms offer accessible alternatives for equine gait analysis but require thorough assessment under diverse conditions. Objectives To evaluate a proprietary vision‐based algorithm's reliability in measuring vertical displacement signals (VDS) at the eye, withers and croup, alongside groundline estimation ...
Karsten Key, Katja Berg, Jakob Kirkegaard, Kristian Ringkjær Andresen, Sabrina Skov Hansen   +4 more
wiley   +1 more source

Comparison of Marker-Based and Markerless Motion Capture Systems for Measuring Throwing Kinematics

Biomechanics
Background: Marker-based motion capture systems are commonly used for three-dimensional movement analysis in sports. Novel, markerless motion capture systems enable the collection of comparable data under more time-efficient conditions with higher ...
Carina Thomas, Kevin Nolte, Marcus Schmidt, Thomas Jaitner   +3 more
doaj   +1 more source