Results 51 to 60 of about 536,964 (293)
Improving the Signal-to-Noise Ratio of Superresolution Imaging Based on Single-Pixel Camera
IEEE Photonics Journal, 2019 Based on the theories of single-pixel camera and compressed sensing image reconstruction, the sparse basis, the projection method of measurement matrix, and the signal reconstruction algorithm are optimized. First, for the sparse representation of image,
Ziran Wei +5 more
doaj +1 more source
Image quality in double- and triple-intensity ghost imaging with classical partially polarized light
, 2012 Classical ghost imaging is a correlation-imaging technique in which the image of the object is found through intensity correlations of light. We analyze three different quality parameters, namely the visibility, the signal-to-noise ratio (SNR), and the ...
Agafonov +37 more
core +1 more source
Single Atom Imaging with an sCMOS camera [PDF]
, 2017 Single atom imaging requires discrimination of weak photon count events above background and has typically been performed using either EMCCD cameras, photomultiplier tubes or single photon counting modules.
C. J. Picken +3 more
core +2 more sources
Molecular Oncology, EarlyView.This work identified serum proteins associated with pancreatic epithelial neoplasms (PanINs) and early‐stage PDAC. Proteomics screens assessed genetically engineered mice with abundant PanINs, KPC mice (Lox‐STOP‐Lox‐KrasG12D/+ Lox‐STOP‐Lox‐Trp53R172H/+ Pdx1‐Cre) before PDAC development and also early‐stage PDAC patients (n = 31), compared to benign ...
Hannah Mearns +10 more
wiley +1 more source
Are Movement Artifacts in Magnetic Resonance Imaging a Real Problem?—A Narrative Review
Frontiers in Neurology, 2017 Movement artifacts compromise image quality and may interfere with interpretation, especially in magnetic resonance imaging (MRI) applications with low signal-to-noise ratio such as functional MRI or diffusion tensor imaging, and when imaging small ...
Inger Havsteen +5 more
doaj +1 more source
A Double-Threshold Technique for Fast Time-Correspondence Imaging
, 2013 We present a robust imaging method based on time-correspondence imaging and normalized ghost imaging (GI) that sets two thresholds to select the reference frame exposures for image reconstruction.
Fan, Heng +6 more
core +1 more source
Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma
Molecular Oncology, EarlyView.The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic +5 more
wiley +1 more source
Sensitive Absorption Imaging of Single Atoms in Front of a Mirror [PDF]
, 2013 In this paper we show that the sensitivity of absorption imaging of ultracold atoms can be significantly improved by imaging in a standing-wave configuration.
Spreeuw, Robert J. C. +1 more
core +3 more sources
Molecular Oncology, EarlyView.Pancreatic sensory neurons innervating healthy and PDAC tissue were retrogradely labeled and profiled by single‐cell RNA sequencing. Tumor‐associated innervation showed a dominant neurofilament‐positive subtype, altered mitochondrial gene signatures, and reduced non‐peptidergic neurons.
Elena Genova +14 more
wiley +1 more source
Comparing signal‐to‐noise ratio for prostate imaging at 7T and 3T [PDF]
Journal of Magnetic Resonance Imaging, 2018 BackgroundIn MRI, the signal‐to‐noise ratio (SNR) theoretically increases with B0 field strength. However, because of attenuation of the radiofrequency (RF) fields at 7T, it is not certain if this SNR gain can be realized for prostate imaging.Purpose/HypothesisTo investigate the SNR gain in prostate imaging at 7T as compared with 3T.
Steensma, Bart R. +6 more
openaire +3 more sources