Results 21 to 30 of about 11,556,505 (305)

Effects of Field-Map Distortion Correction on Resting State Functional Connectivity MRI. [PDF]

Front Neurosci, 2017
Magnetic field inhomogeneities cause geometric distortions of echo planar images used for functional magnetic resonance imaging (fMRI). To reduce this problem, distortion correction (DC) with field map is widely used for both task and resting-state fMRI (
Togo H, Rokicki J, Yoshinaga K, Hisatsune T, Matsuda H, Haga N, Hanakawa T.   +6 more
europepmc   +2 more sources

High-resolution, large dynamic range field map estimation. [PDF]

Magn Reson Med, 2014
Dagher J, Reese T, Bilgin A.
europepmc   +2 more sources

Using synthetic MR images for field map-less distortion correction

, 2021
Functional MRI (fMRI) data acquired using echo-planar imaging (EPI) is highly distorted by magnetic field inhomogeneity. Distortion combined with underlying differences in image contrast between EPI and T1-weighted and T2-weighted (T1w/T2w) structural ...
D. Montez, A. N. Van, Ryland L. Miller, Nicole A. Seider, Scott A. Marek, Annie Zheng, Dillan J. Newbold, Kristen M. Scheidter, E. Feczko, Anders J. Perrone, Óscar Miranda-Domínguez, E. Earl, B. Kay, A. K. Jha, Aristeidis Sotiras, Timothy O. Laumann, D. Greene, Evan M. Gordon, M. Tisdall, Andre van der Kouwe, Damien A. Fair, N. Dosenbach   +21 more
semanticscholar   +1 more source

LIV-GaussMap: LiDAR-Inertial-Visual Fusion for Real-Time 3D Radiance Field Map Rendering [PDF]

IEEE Robotics and Automation Letters
We introduce an integrated precise LiDAR, Inertial, and Visual (LIV) multimodal sensor fused mapping system that builds on the differentiable Gaussians to improve the mapping fidelity, quality, and structural accuracy.
Sheng Hong, Junjie He, Xinhu Zheng, Chunran Zheng   +3 more
semanticscholar   +1 more source

PROGRESS IN FIELD EXPERIMENTATION FOR ENVIRONMENTALLY SUSTAINABLE TOURISM – A knowledge map and research agenda

Tourism Management, 2022
The global aspiration to mitigate climate change puts substantial pressure on the tourism sector – one of the most polluting industries – to operate in more sustainable ways. This study reviews intervention experiments in tourism and hospitality aimed at
Csilla Demeter, David Fechner, S. Dolnicar   +2 more
semanticscholar   +1 more source

The CMS Magnetic Field Map Performance [PDF]

, 2010
Peer ...
Amapane, Nicola, Andreev, V, Ball, Alan, Cure, B, Gaddi, A, Gerwig, H, Herve, A, Karimaki, V., Klyukhin, V.P., Loveless, R, Mulders, Martijn, Popescu, S, Sarycheva, L.I., Virdee, Terinder   +13 more
core   +2 more sources

Radiofrequency Electromagnetic Field Map of Timisoara

Annals of West University of Timisoara: Physics, 2015
There are many electromagnetic field (EMF) sources nowadays acting simultaneously, especially in urban areas, making the theoretical estimation of electromagnetic power at ground level very difficult.
Stefu N., Solyom I., Arama A.
doaj   +1 more source

Using Deep Learning and Very-High-Resolution Imagery to Map Smallholder Field Boundaries

Remote Sensing, 2022
The mapping of field boundaries can provide important information for increasing food production and security in agricultural systems across the globe. Remote sensing can provide a viable way to map field boundaries across large geographic extents, yet ...
Weiye Mei, Haoyu Wang, David Fouhey, Weiqi Zhou, Isabella Hinks, Josh M. Gray, Derek Van Berkel, Meha Jain   +7 more
doaj   +1 more source

Quantitative Susceptibility Mapping: Contrast Mechanisms and Clinical Applications. [PDF]

, 2015
Quantitative susceptibility mapping (QSM) is a recently developed MRI technique for quantifying the spatial distribution of magnetic susceptibility within biological tissues.
Cronin, Matthew, Decker, Kyle, Dibb, Russel, Gong, Nan-Jie, Liu, Chunlei, Wei, Hongjiang   +5 more
core   +2 more sources

Dipole-magnet field models based on a conformal map

Physical Review Special Topics. Accelerators and Beams, 2012
In general, generation of charged-particle transfer maps for conventional iron-pole-piece dipole magnets to third and higher order requires a model for the midplane field profile and its transverse derivatives (soft-edge model) to high order and ...
P. L. Walstrom
doaj   +1 more source