Results 21 to 30 of about 3,035 (261)

On Radon Transforms on Tori [PDF]

open access: yesJournal of Fourier Analysis and Applications, 2014
We show injectivity of the X-ray transform and the $d$-plane Radon transform for distributions on the $n$-torus, lowering the regularity assumption in the recent work by Abouelaz and Rouvière. We also show solenoidal injectivity of the X-ray transform on the $n$-torus for tensor fields of any order, allowing the tensors to have distribution valued ...
openaire   +5 more sources

Crosstalk attenuation for imaging of multiples based on angle gather residual moveout analysis

open access: yesFrontiers in Earth Science, 2023
Imaging of multiples, as a supplement to imaging of primaries, can provide a wider range of subsurface illumination. Therefore, it can provide more detailed information on subsurface structures. However, imaging of multiples suffers from crosstalk issues
Zihao Gao   +9 more
doaj   +1 more source

Inversion Formula for a Radon-Type Transform Arising in Photoacoustic Tomography with Circular Integrating Detectors

open access: yesAdvances in Mathematical Physics, 2018
This paper is devoted to a Radon-type transform arising in a version of Photoacoustic Tomography that uses integrating circular detectors. The Radon-type transform that arises can be decomposed into the known Radon-type transforms: the spherical Radon ...
Sunghwan Moon
doaj   +1 more source

Road Detection by Using a Generalized Hough Transform

open access: yesRemote Sensing, 2017
Road detection plays key roles for remote sensing image analytics. Hough transform (HT) is one very typical method for road detection, especially for straight line road detection.
Weifeng Liu   +3 more
doaj   +1 more source

Exploring the impact of building characteristics and occupancy on CO2 levels in 943 Switzerland classrooms

open access: yesIndoor Environments
Maintaining healthy CO2 levels and indoor air quality in school environments is determinant to guarantee children and teachers health, and suitable learning conditions.
Joan F. Rey   +2 more
doaj   +1 more source

The Radon transform on the Heisenberg group and the transversal Radon transform

open access: yesJournal of Functional Analysis, 2012
The notion of the Radon transform on the Heisenberg group was introduced by R. Strichartz and inspired by D. Geller and E.M. Stein's related work. The more general transversal Radon transform integrates functions on the m-dimensional real Euclidean space over hyperplanes meeting the last coordinate axis.
openaire   +3 more sources

Two-year performance drift in real-time and low-grade radon devices: A longitudinal study

open access: yesIndoor Environments
Radon is a naturally occurring radioactive gas, colorless and odorless, produced from the decay of uranium which can infiltrate buildings indoors and cause lung cancer on prolonged exposure.
Joan F. Rey, Joëlle Goyette Pernot
doaj   +1 more source

Inverse of Affine Radon Transform for Light Field Reconstruction From Focal Stack

open access: yesIEEE Access, 2018
The light field can be applied to computational imaging methods, such as digital refocusing, depth reconstruction, and all-in-focus imaging. In this paper, the affine Radon transform of generating the focal stack by the light field is proposed.
Jun Qiu   +4 more
doaj   +1 more source

Gegenbauer Transforms via the Radon Transform [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 1979
Use is made of the Radon transform on even dimensional spaces and Gegenbauer functions of the second kind to obtain a general Gegenbauer transform pair. In the two-dimensional limit the pair reduces to a Chebyshev transform pair.
openaire   +2 more sources

Identifying rotational radon transforms [PDF]

open access: yesPeriodica Mathematica Hungarica, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +4 more sources

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