Results 11 to 20 of about 16,091 (269)
A two cones support theorem [PDF]
Opuscula Mathematica, 2016 We show that if the Radon transform of a distribution \(f\) vanishes outside of an acute cone \(C_{0}\), the support of the distribution is contained in the union of \(C_{0}\) and another acute cone \(C_{1}\), the cones are in a suitable position, and ...
Ricardo Estrada
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Scale-discretised ridgelet transform on the sphere [PDF]
, 2019 We revisit the spherical Radon transform, also called the Funk-Radon transform, viewing it as an axisymmetric convolution on the sphere. Viewing the spherical Radon transform in this manner leads to a straightforward derivation of its spherical harmonic ...
candes +12 more
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Document Skew Detection and Correction Algorithm using Wavelet and Radon Transforms [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2009 :As part of research into document image processing, an algorithm has been developed to detect and correct the degree of skew in a scanned image. The principal components of the algorithm are the wavelet and radon transforms.
F.A. Al-adhadh +2 more
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Advances 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
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Exact reconstruction formulas for a Radon transform over cones [PDF]
, 2013 Inversion of Radon transforms is the mathematical foundation of many modern tomographic imaging modalities. In this paper we study a conical Radon transform, which is important for computed tomography taking Compton scattering into account.
Haltmeier, Markus
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A range description for the planar circular Radon transform [PDF]
, 2005 The transform considered in the paper integrates a function supported in the unit disk on the plane over all circles centered at the boundary of this disk.
Ambartsoumian, Gaik, Kuchment, Peter
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Gegenbauer Transforms via the Radon Transform [PDF]
SIAM 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.
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On the V-Line Radon Transform and Its Imaging Applications
International Journal of Biomedical Imaging, 2010 Radon transforms defined on smooth curves are well known and extensively studied in the literature. In this paper, we consider a Radon transform defined on a discontinuous curve formed by a pair of half-lines forming the vertical letter V.
M. Morvidone +3 more
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Frontiers in Neuroscience, 2013 Neural activity leads to hemodynamic changes which can be detected by functional magnetic resonance imaging (fMRI). The determination of blood flow changes in individual vessels is an important aspect of understanding these hemodynamic signals.
Pratik Yashvant Chhatbar, Prakash eKara
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IET Image Processing, 2021 An extension of Radon transform by using a measure function capturing the user need is proposed. The new transform, called scale space Radon transform, is devoted to the case where the embedded shape in the image is not filiform.
Djemel Ziou +2 more
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