Results 21 to 30 of about 2,076,692 (292)

4D STEM: high efficiency phase contrast imaging using a fast pixelated detector [PDF]

open access: yes, 2015
Phase contrast imaging is widely used for imaging beam sensitive and weak phase objects in electron microscopy. In this work we demonstrate the achievement of high efficient phase contrast imaging in STEM using the pnCCD, a fast direct electron pixelated
Banba, H   +9 more
core   +1 more source

Achieving single nucleotide sensitivity in direct hybridization genome imaging

open access: yesNature Communications, 2022
Visualisation of point mutations in situ is informative for studying genetic diseases. Here the authors report single guide genome oligopaint via local denaturation fluorescence in situ hybridisation, sgGOLDFISH, a direct hybridisation genome imaging ...
Yanbo Wang   +8 more
doaj   +1 more source

Direct Noise-Resistant Edge Detection with Edge-Sensitive Single-Pixel Imaging Modulation

open access: yesIntelligent Computing, 2023
The majority of edge detection methods are applied after the capture of object photos. Thus, edge detection quality suffers when disturbances occur during imaging. This work proposes an effective edge detection technique for single-pixel imaging (SI).
Mengchao Ma   +6 more
doaj   +1 more source

Direct imaging of exoplanets [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014
Most of the exoplanets known today have been discovered by indirect techniques, based on the study of the host star radial velocity or photometric temporal variations. These detections allowed the study of the planet populations in the first 5–8 AU from the central stars and have provided precious information on the way planets form and evolve at such ...
openaire   +2 more sources

SPIFI: a Direct-Detection Imaging Spectrometer for Submillimeter Wavelengths [PDF]

open access: yes, 2002
The South Pole Imaging Fabry-Perot Interferometer (SPIFI) is the first instrument of its kind -a direct-detection imaging spectrometer for astronomy in the submillimeter band.
Ade, Peter A. R.   +8 more
core   +2 more sources

Impact of enhancing GP access to diagnostic imaging: A scoping review.

open access: yesPLoS ONE, 2023
BackgroundDirect access to diagnostic imaging in General Practice provides an avenue to reduce referrals to hospital-based specialities and emergency departments, and to ensure timely diagnosis.
Amy Phelan   +8 more
doaj   +1 more source

Direct imaging constraints on planet populations detected by microlensing [PDF]

open access: yes, 2012
Results from gravitational microlensing suggested the existence of a large population of free-floating planetary mass objects. The main conclusion from this work was partly based on constraints from a direct imaging survey.
Beaulieu   +14 more
core   +1 more source

Imaging of Temporomandibular Joint: Approach by Direct Volume Rendering [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2014
Background: The purpose of this study was to conduct a morphological analysis of the temporomandibular joint, a highly specialized synovial joint that permits movement and function of the mandible.
Antonino Marco Cuccia   +4 more
doaj   +1 more source

Directed graph based image registration

open access: yesComputerized Medical Imaging and Graphics, 2011
In this paper, a novel image registration method is proposed to achieve accurate registration between images having large shape differences with the help of a set of appropriate intermediate templates. We first demonstrate that directionality is a key factor in both pairwise image registration and groupwise registration, which is defined in this paper ...
Hongjun, Jia   +5 more
openaire   +3 more sources

A method for measuring the contact area in instrumented indentation testing by tip scanning probe microscopy imaging [PDF]

open access: yes, 2014
The determination of the contact area is a key step to derive mechanical properties such as hardness or an elastic modulus by instrumented indentation testing. Two families of procedures are dedicated to extracting this area: on the one hand, post mortem
Charleux, L.   +5 more
core   +5 more sources

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