Results 71 to 80 of about 109,158 (297)

A variational model for denoising high angular resolution diffusion imaging [PDF]

open access: yes2012 9th IEEE International Symposium on Biomedical Imaging (ISBI), 2012
The presence of noise in High Angular Resolution Diffusion Imaging (HARDI) data of the brain can limit the accuracy with which fiber pathways of the brain can be extracted. In this work, we present a variational model to denoise HARDI data corrupted by Rician noise.
Melissa Tong   +7 more
openaire   +2 more sources

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

open access: yesFEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill   +4 more
wiley   +1 more source

Refinement of amino‐acid conformation vs. difference density maps in time‐resolved serial femtosecond crystallography data analysis

open access: yesFEBS Open Bio, EarlyView.
The dFoCC pipeline starts with observed DED and resting‐state coordinates, which are then used to generate a library of triggered states. Correlation analysis of the calculated DED features of each candidate vs observed DED permits quantitative evaluation of candidate structural quality.
Meng Iao Fong   +3 more
wiley   +1 more source

Computational Super-Resolution Full-Parallax Three-Dimensional Light Field Display Based on Dual-Layer LCD Modulation

open access: yesIEEE Access, 2020
Due to physical limitation in resolution of display device, it is usually very difficult to achieve a high spatial resolution and a high angular resolution simultaneously for a three-dimensional (3D) light field display.
Peng Wang   +3 more
doaj   +1 more source

Online motion detection in high angular resolution diffusion imaging [PDF]

open access: yes2011 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2011
The orientation distribution function (ODF) can be reconstructed online incrementally from diffusion-weighted MRI with a Kalman filtering framework. This online reconstruction can provide real-time feedback to the practitioner, especially appreciated for long acquisition protocols typical in Q-ball imaging.
Caruyer, Emmanuel   +4 more
openaire   +2 more sources

Dusty Blue Supergiants: News from High-Angular Resolution Observations

open access: yesAdvances in Astronomy, 2014
An overview is presented of the recent advances in understanding the B[e] phenomenon among blue supergiant stars in light of high-angular resolution observations and with an emphasis on the results obtained by means of long baseline optical stellar ...
W. J. de Wit   +2 more
doaj   +1 more source

Using high angular resolution diffusion imaging data to discriminate cortical regions.

open access: yesPLoS ONE, 2013
Brodmann's 100-year-old summary map has been widely used for cortical localization in neuroscience. There is a pressing need to update this map using non-invasive, high-resolution and reproducible data, in a way that captures individual variability.
Zoltan Nagy   +4 more
doaj   +1 more source

The Haystack Telescope as an Astronomical Instrument

open access: yesGalaxies, 2023
The Haystack Telescope is an antenna with a diameter of 37 m and an elevation-dependent surface accuracy of ≤100μm that is capable of millimeter-wave observations.
Jens Kauffmann   +6 more
doaj   +1 more source

Forward scattering measurement device with a high angular resolution

open access: yesOptics Express, 2007
A new optical device to measure forward scattered light in a range of 3 degrees to 20 degrees has been developed and tested. The scattered light is focused on a plane where its axial position is proportional to the scattered angle theta. A motorized iris diaphragm located at this plane selects the scattered light between 0 degrees and a variable angle ...
David, Roßkamp   +3 more
openaire   +2 more sources

Multiple functions of the angular gyrus at high temporal resolution

open access: yesBrain Structure and Function, 2022
Here, the functions of the angular gyrus (AG) are evaluated in the light of current evidence from transcranial magnetic/electric stimulation (TMS/TES) and EEG/MEG studies. TMS/TES literature points to a causal role in semantic processing, word and number processing, attention and visual search, self-guided movement, memory, and self-processing. EEG/MEG
openaire   +2 more sources

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