Results 61 to 70 of about 2,241 (168)

Video Segmentation for Markerless Motion Capture in Unconstrained Environments [PDF]

, 2007
Segmentation is a first and important step in video-based motion capture applications. A lack of constraints can make this process daunting and difficult to achieve. We propose a technique that makes use of an improved JSEG procedure in the context of markerless motion capture for performance evaluation of human beings in unconstrained environments. In
Martin Côté, Pierre Payeur, Gilles Comeau   +2 more
openaire   +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

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

Equine Veterinary Journal, EarlyView.
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

Extended Reality in Endodontics: A Review of Current Applications and Future Potential

International Endodontic Journal, EarlyView.
ABSTRACT Background Extended reality (XR) technologies, encompassing augmented reality (AR), virtual reality (VR), and mixed reality (MR), are increasingly used in endodontic education and practice. A gap exists regarding understanding of XR's applications and limitations among endodontic educators and practitioners.
Seyed AmirHossein Ourang, Fatemeh Sohrabniya, Peng Yuan Zhou, Damiano Pasqualini, Henry F. Duncan, Ruben Pauwels, Ali Nosrat   +6 more
wiley   +1 more source

Autonomous Frameless Spine Registration and Robot‐Assisted Surgery

Orthopaedic Surgery, EarlyView.
Workflow of a contactless, frame‐free, robot‐assisted vertebra registration system. Preoperative CT data establish vertebra {V} and mask {Mpre} coordinate systems. Their relationship is computed, and intraoperatively the robot recognizes the skin‐affixed mask, defining {Mintra}.
Amit Kumar, T. A. Dwarakanath, Gaurav Bhutani, Dwarakanath Srinivas, Aliasgar Moiyadi   +4 more
wiley   +1 more source

Transcutaneous auricular vagus nerve stimulation during short‐term motor practice drives cortical plasticity without behavioural improvement

The Journal of Physiology, EarlyView.
Abstract figure legend Transcutaneous auricular vagus nerve stimulation (taVNS) was applied during short‐term dexterous motor practice to examine its effects on behavioural performance and neural plasticity. Healthy participants practiced a two‐ball rotation task while receiving taVNS or sham stimulation.
Kento Nakagawa, Rieko Osu
wiley   +1 more source

AI‐Based Exergaming as a Digital Assessment Tool for Post‐Stroke Upper‐Limb Function: Protocol for a Feasibility Study

Physiotherapy Research International, Volume 31, Issue 3, July 2026.
ABSTRACT Background and Purpose Accurate assessment of upper limb motor function is critical for guiding effective rehabilitation strategies in stroke survivors. The Fugl‐Meyer Assessment for Upper Extremity (FMA‐UE) is a widely used clinical tool, yet it is time‐consuming and subject to inter‐patient variability.
Júlia Tannús de Souza, Caroline Valentini de Queiroz, Daniel Hilário da Silva, Danilo Santos Rocha, Eduardo Lázaro Martins Naves   +4 more
wiley   +1 more source

Decoding Preschool Social Dynamics: Automated Tracking of Spatial and Temporal Patterns to Investigate Social Interactions and Relationships in Peer Groups

Developmental Science, Volume 29, Issue 4, July 2026.
ABSTRACT In this study, we applied machine learning tools to automatically track the positions of preschool children in a natural free play setting and derived spatial and temporal features from these data to identify social interactions between them.
Gabriela Markova, Jozsef Arato, Ruzena Ceral, Maximilian Hofbauer, Cliodhna Quigley, Lisa Horn   +5 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

Technologies for equine welfare and performance monitoring under field conditions – Where do we stand?

Equine Veterinary Journal, Volume 58, Issue 4, Page 872-888, July 2026.
Abstract The need for comprehensive equine welfare assessments has become particularly evident amid ongoing debates about the social licence to operate in equestrian sports. During exercise, multiple physiological systems, principally the cardiovascular, respiratory, muscular, thermoregulatory, endocrine, and locomotory systems, undergo complex ...
Rhana Mackie Aarts, Esther W. Siegers, Filipe M. Serra Braganca, P. René van Weeren   +3 more
wiley   +1 more source