Results 21 to 30 of about 909,380 (198)
Statistical analysis of three‐dimensional optical flow separability in volumetric images
IET Computer Vision, 2015 Three‐dimensional (3D) motion analysis of dynamic body organs using volumetric images is of increasing interest in different computer vision applications. A number of methods for estimation of 3D optical flow in those images have been developed in recent
Marjan Hadian Jazi +2 more
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Scientific Reports, 2023 Three-dimensional (3D) quantitative phase imaging (QPI) enables long-term label-free tomographic imaging and quantitative analysis of live individual bacteria.
Jeongwon Shin +4 more
doaj +1 more source
, 2009 This book constitutes the refereed proceedings of the 18th Scandinavian Conference on Image Analysis, SCIA 2013, held in Espoo, Finland, in June 2013. The 67 revised full papers presented were carefully reviewed and selected from 132 submissions.
B. Coleman +9 more
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Reliability of a low-cost webcam recording system for three-dimensional lower limb gait analysis
International Biomechanics, 2019 The purposes of this study were to develop and evaluate the test-retest reliability of a specific low-cost three-dimensional webcam recording system (3D-WCRS) and compare its reliability to a standard motion analysis system.
Apiwan Pusara +3 more
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Frontiers in Bioengineering and Biotechnology, 2020 The purpose of this study was to investigate differences in Froude efficiency (ηF) and active drag (DA) between front crawl and backstroke at the same speed. ηF was investigated by the three-dimensional (3D) motion analysis using 10 male swimmers.
Tomohiro Gonjo +8 more
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Evaluating 3D Human Motion Capture on Mobile Devices
Applied Sciences, 2022 Computer-vision-based frameworks enable markerless human motion capture on consumer-grade devices in real-time. They open up new possibilities for application, such as in the health and medical sector.
Lara Marie Reimer +3 more
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Application of the self-organising map to trajectory classification [PDF]
, 2000 This paper presents an approach to the problem of automatically classifying events detected by video surveillance systems; specifically, of detecting unusual or suspicious movements. Approaches to this problem typically involve building complex 3D-models
Hunter, Andrew, Owens, Jonathan
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Motion Analysis System Using Motion Capture and 3D Computer Graphics
The Japanese Journal of Ergonomics, 2009 本研究では，直観的に理解しやすい動作解析を行うための，動作解析システムの開発を目的とする．提案システムは，光学式モーションキャプチャにより動作を，無線式生体アンプにより筋電信号を測定する．可視化は，人体の骨格形状，筋肉の位置や形状を正確に反映した3次元コンピュータグラフィックス（3DCG）人体アバターが，モーションキャプチャで測定した動作を再現し，その動作に伴う筋活動の大きさを筋肉の色で表現するものである．提案システムは，従来の動作解析システムと比較し，動作と生体状態を同時に可視化するため，身体全体の総合的評価，および，生体状態の時間変動評価に適している．3DCGを用いた可視化のため，動作を任意の注視点から観測することができる．本論文では，動作解析システムの構成，可視化手法 ...
Tsuyoshi MATSUKAWA +3 more
openaire +2 more sources
2D-3D registration of CT vertebra volume to fluoroscopy projection: A calibration model assessment (doi:10.1155/2010/806094) [PDF]
, 2010 This study extends a previous research concerning intervertebral motion registration by means of 2D dynamic fluoroscopy to obtain a more comprehensive 3D description of vertebral kinematics. The problem of estimating the 3D rigid pose of a CT volume of a
Allen, R. +5 more
core +2 more sources
Volumetric motion quantification by 3D tissue phase mapped CMR
Journal of Cardiovascular Magnetic Resonance, 2012 Background The objective of this study was the quantification of myocardial motion from 3D tissue phase mapped (TPM) CMR. Recent work on myocardial motion quantification by TPM has been focussed on multi-slice 2D acquisitions thus excluding motion ...
Lutz Anja +7 more
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