Results 121 to 130 of about 712,500 (261)

Reversible Photochromic Reactions of Bacteriorhodopsin from Halobacterium salinarum at Femto- and Picosecond Times

open access: yesMolecules
The operation of bacteriorhodopsin (BR) from the archaeon Halobacterium salinarum is based on the photochromic reaction of isomerization of the chromophore group (the retinal protonated Schiff base, RPSB) from the all-trans to the 13-cis form.
Olga Smitienko   +7 more
doaj   +1 more source

A Fully Convolutional Neural Network based Structured Prediction Approach Towards the Retinal Vessel Segmentation [PDF]

open access: yesarXiv, 2016
Automatic segmentation of retinal blood vessels from fundus images plays an important role in the computer aided diagnosis of retinal diseases. The task of blood vessel segmentation is challenging due to the extreme variations in morphology of the vessels against noisy background.
arxiv  

Retinal Vessel Segmentation in Fundoscopic Images with Generative Adversarial Networks [PDF]

open access: yesarXiv, 2017
Retinal vessel segmentation is an indispensable step for automatic detection of retinal diseases with fundoscopic images. Though many approaches have been proposed, existing methods tend to miss fine vessels or allow false positives at terminal branches.
arxiv  

Evaluation of the effect of hemodynamic factors on retinal microcirculation by using 3D confocal image-based computational fluid dynamics

open access: yesFrontiers in Bioengineering and Biotechnology
PurposeTo investigate local hemodynamic changes resulting from elevated intraocular pressure (IOP) in different vasculature networks using a computational fluid dynamics model based on 3D reconstructed confocal microscopic images.MethodsThree-dimensional
Chi Wei Ong   +7 more
doaj   +1 more source

RETINAL HEMORRHAGE [PDF]

open access: yesThe Journal of Nervous and Mental Disease, 1919
n ...
openaire   +2 more sources

Reproducibility of Retinal Thickness Measurements across Spectral-Domain Optical Coherence Tomography Devices using Iowa Reference Algorithm [PDF]

open access: yesarXiv, 2016
PURPOSE: Establishing and obtaining consistent quantitative indices of retinal thickness from a variety of clinically used Spectral-Domain Optical Coherence Tomography scanners. DESIGN: Retinal images from five Spectral-Domain Optical Coherence Tomography scanners were used to determine total retinal thickness with scanner-specific correction factors ...
arxiv  

Home - About - Disclaimer - Privacy