Results 51 to 60 of about 909,380 (198)

Motion Compensation for 3D Multispectral Handheld Photoacoustic Imaging

open access: yesBiosensors, 2022
Three-dimensional (3D) handheld photoacoustic (PA) and ultrasound (US) imaging performed using mechanical scanning are more useful than conventional 2D PA/US imaging for obtaining local volumetric information and reducing operator dependence.
Chiho Yoon   +3 more
doaj   +1 more source

The proper motion of the Arches cluster with Keck Laser-Guide Star Adaptive Optics [PDF]

open access: yes, 2007
We present the first measurement of the proper motion of the young, compact Arches cluster near the Galactic center from near-infrared adaptive optics (AO) data taken with the recently commissioned laser-guide star (LGS) at the Keck 10-m telescope.
A. M. Ghez   +9 more
core   +2 more sources

Analysis of 3D Motion Recognition using Meta-analysis for Interaction [PDF]

open access: yesJournal of the Ergonomics Society of Korea, 2010
Most of the research on three-dimensional interaction field have showed different accuracy in terms of sensing, mode and method. Furthermore, implementation of interaction has been a lack of consistency in application field. Therefore, this study is to suggest research trends of three-dimensional interaction using meta-analysis.
Yong-Woo Kim   +5 more
openaire   +1 more source

Meshless deformable models for LV motion analysis [PDF]

open access: yes, 2008
We propose a novel meshless deformable model for in vivo cardiac left ventricle (LV) 3D motion estimation. As a relatively new technology, tagged MRI (tMRI) provides a direct and noninvasive way to reveal local deformation of the myocardium, which ...
Dimitis Metaxas   +3 more
core   +1 more source

Evaluation of the sagittal vertical axis with postural and 3D motion analyses in lumbar spinal stenosis

open access: yesBMC Musculoskeletal Disorders
Background Sagittal balance, commonly impaired in lumbar spinal stenosis (LSS) patients, is typically assessed using the sagittal vertical axis (SVA) with EOS imaging.
Mathieu Gueugnon   +7 more
doaj   +1 more source

Three-dimensional morphometric analysis of the coracohumeral distance using magnetic resonance imaging

open access: yesOrthopedic Reviews, 2017
There have been no studies investigating three-dimensional (3D) alteration of the coracohumeral distance (CHD) associated with shoulder motion. The aim of this study was to investigate the change of 3D-CHD with the arm in flexion/internal rotation and ...
Taku Hatta   +6 more
doaj   +1 more source

Discovery and recognition of motion primitives in human activities [PDF]

open access: yes, 2019
We present a novel framework for the automatic discovery and recognition of motion primitives in videos of human activities. Given the 3D pose of a human in a video, human motion primitives are discovered by optimizing the `motion flux', a quantity which
Ntouskos, Valsamis   +2 more
core   +3 more sources

Neuro-adaptive control in beating heart surgery based on the viscoelastic tissue model [PDF]

open access: yesJournal of Intelligent Procedures in Electrical Technology, 2014
In this paper, the problem of 3D heart motion in beating heart surgery is resolved by proposing a parallel force-motion controller. Motion controller is designed based on neuro-adaptive approach to compensate 3D heart motion and deal with uncertainity in
Setareh Rezakhani   +2 more
doaj  

The use of the greater trochanter marker in the thigh segment model: Implications for hip and knee frontal and transverse plane motion

open access: yesJournal of Sport and Health Science, 2016
Background: The greater trochanter marker is commonly used in 3-dimensional (3D) models; however, its influence on hip and knee kinematics during gait is unclear.
Valentina Graci, Gretchen B. Salsich
doaj   +1 more source

Visualization and comparison of classical structures and quantum states of 4D maps

open access: yes, 2014
For generic 4D symplectic maps we propose the use of 3D phase-space slices which allow for the global visualization of the geometrical organization and coexistence of regular and chaotic motion. As an example we consider two coupled standard maps.
Bäcker, Arnd   +3 more
core   +1 more source

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