Results 241 to 250 of about 36,471 (278)
Some of the next articles are maybe not open access.
Mediterranean Journal of Mathematics, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Abouelaz, Ahmed, Rouvière, François
openaire +1 more source
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Abouelaz, Ahmed, Rouvière, François
openaire +1 more source
Radon transforms and lamplighter random walks
Journal of Mathematical Sciences, 2008zbMATH Open Web Interface contents unavailable due to conflicting licenses.
SCARABOTTI, Fabio, TOLLI F.
openaire +2 more sources
Shearlets as Multi-scale Radon Transforms
Sampling Theory in Signal and Image Processing, 2017It is shown that the 2D-shearlet transform is the composition of the affine Radon transform, a 1D-wavelet transform and a 1D-convolution. This is applied to give an alternative proof of the fact that the shearlet transform is able to resolve the wavefront set associated with the unit disc.
BARTOLUCCI, FRANCESCA +3 more
openaire +2 more sources
2009
For a given function f defined in the plane, which may represent, for instance, the attenuation-coefficient function in a cross section of a sample, the fundamental question of image reconstruction calls on us to consider the value of the integral of f along a typical line l t , θ.
openaire +1 more source
For a given function f defined in the plane, which may represent, for instance, the attenuation-coefficient function in a cross section of a sample, the fundamental question of image reconstruction calls on us to consider the value of the integral of f along a typical line l t , θ.
openaire +1 more source
1998
The Radon transform, which was first discussed in 1912 by J. Radon, can be seen as a special case of a symmetry-preserving integral transform. The theory of this transformation is closely connected to Fourier transforms. The name Radon transform was first used by F. John in 1955.
openaire +1 more source
The Radon transform, which was first discussed in 1912 by J. Radon, can be seen as a special case of a symmetry-preserving integral transform. The theory of this transformation is closely connected to Fourier transforms. The name Radon transform was first used by F. John in 1955.
openaire +1 more source
Elementary Inversion of Radon’s Transform
SIAM Review, 1986This paper suggests one possible approach to demonstrating how to invert the Radon transform, in a language accessible to senior undergraduates in the mathematical sciences, from a new, rigorous point of view that closely parallels actual numerical methods, and involves only calculus.
openaire +2 more sources
The global burden of lung cancer: current status and future trends
Nature Reviews Clinical Oncology, 2023Amanda Leiter
exaly
1980
It was proved by J. Radon in 1917 that a differentiable function on R3 can be determined explicitly by means of its integrals over the planes in R3. Let J(ω, p) denote the integral of f over the hyperplane 〈x, ω〉 = p, ω denoting a unit vector and 〈,〉 the inner product.
openaire +1 more source
It was proved by J. Radon in 1917 that a differentiable function on R3 can be determined explicitly by means of its integrals over the planes in R3. Let J(ω, p) denote the integral of f over the hyperplane 〈x, ω〉 = p, ω denoting a unit vector and 〈,〉 the inner product.
openaire +1 more source
Radon and Lung Cancer: Current Trends and Future Perspectives
Cancers, 2022Marta Garcia de Herreros, Laura Mezquita
exaly