Results 91 to 100 of about 1,798 (292)

Dim and Small Object Detection Using Transform-Based Feature Accumulative Enhancing in Astronomical Optical Image Sequences

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The challenging task of detecting dim and small objects in astronomy optical image sequences is to distinguish them from a large number of stars and different kinds of noise.
Jiangbo Xi   +5 more
doaj   +1 more source

Some remarks on the Brylinski–Radon and the Fourier transforms

open access: yes, 2006
We will study a relationship between the Brylinski–Radon and the Fourier transforms of a monodromic perverse sheaf. In fact we will show that they are equivalent modulo a constant perverse sheaf.
Sugiyama, Ken-ichi
core   +1 more source

Machine‐Learning‐Assisted Onset‐Time Determination in Transient Luminescence Thermometry

open access: yesAdvanced Intelligent Discovery, EarlyView.
Artificial neural networks enable autonomous extraction of onset times from transient heating curves in luminescence thermometry. Using Ln3+‐doped upconverting nanoparticles as luminescent thermometers, we combine experimental transients with physically motivated synthetic curves to enhance data diversity and improve generalization.
David J. Sousa   +3 more
wiley   +1 more source

Hydration Behavior of Tricalcium Silicate in Seawater Relevant Salt Systems: A Hybrid Study with the Aid of Machine Learning

open access: yesAdvanced Intelligent Discovery, EarlyView.
The hydration behavior of C3S in seawater‐relevant solutions is studied based on experiments, boundary nucleation and growth (BNG) modeling, and machine learning. The main ions included in seawater modify hydration mechanisms, with MgCl2 showing the strongest acceleration effect at the same concentration.
Yanjie Sun   +6 more
wiley   +1 more source

Spherical Radon Transform and Related Wavelet Transforms

open access: yes, 1998
Continuous wavelet transforms associated with the spherical Radon transformRfon then-dimensional unit sphere Sn,n≥ 2, are introduced. It is assumed thatf ∈ Lp(Sn) orf ∈ C(Sn).
Rubin, Boris
core   +1 more source

Xstainer: A Novel Virtual Staining Tool Powered by Advanced Deep Learning Techniques

open access: yesAdvanced Intelligent Systems, EarlyView.
Xstainer is a deep learning–based virtual staining framework that converts hematoxylin and eosin‐stained whole slide images into multiple histochemical stains, including Masson's trichrome, Periodic acid‐Schiff, Jones methenamine silver, and Toluidine blue.
Fatma Nur Kinali   +15 more
wiley   +1 more source

A possible symplectic framework for Radon-type transforms

open access: yes, 2016
Our project is to define Radon-type transforms in symplectic geometry. The chosen framework consists of symplectic symmetric spaces whose canonical connection is of Ricci-type.
Cahen, Michel   +5 more
core   +1 more source

Diffusion MRI and α‐Synuclein Seed Amplification Status in Parkinson's Disease

open access: yesAnnals of Neurology, EarlyView.
Objective Positive α‐synuclein seed amplification assay (SAA) is a biomarker found in most people with Parkinson's disease (PD). We explored if free‐water (FW) imaging detects microstructural differences in the brains of patients with early PD with SAA+ or SAA– status.
Shannon Y. Chiu   +145 more
wiley   +1 more source

Inversion of incomplete radon transform

open access: yesApplied Mathematics Letters, 1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ramm, A. G., Katsevich, A. I.
openaire   +2 more sources

Semyanistyi\u27s integrals and radon transforms on matrix spaces

open access: yes, 2008
We introduce a new analytic family of intertwining operators which include the Radon transform over matrix planes and its inverse. These operators generalize integral transformations introduced by Semyanistyi (Dokl. Akad.
Rubin, Boris, Ournycheva, Elena
core   +1 more source

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